2005 Isuzu Ascender Automatic Transmission Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

375 Automatic transmission parts are listed for the 2005 Isuzu Ascender, in 115 part types, covering both the 4.2L L6 and the 5.3L V8. Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 2005 Isuzu Ascender, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. 65 parts of the 375 listed are Filter (25 parts), Components (21 parts) and Clutch Plate (19 parts). The other 112 part types cover the remaining 310 parts.

Accumulator Piston

Brand Part Number Markets Notes Buy
TRANSGO Popular Fits: 4.2L L6 4L6FWD
🇺🇸 US
Forward Accumulator Piston
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GM GENUINE Fits: 4.2L L6 24200127
🇺🇸 US 🇨🇦 CA
Forward
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GM GENUINE Fits: 4.2L L6 24221919
🇺🇸 US 🇨🇦 CA
Contains 1-2 and 3-4 Accumulator Piston and Seal Assembly
Fitment notes — GM GENUINE 24221919
Contains 1-2 and 3-4 Accumulator Piston and Seal Assembly
1-2, 3-4
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SONNAX Fits: 4.2L L6 7776401
🇺🇸 US
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TRANSGO Fits: 4.2L L6 4L652ACM
🇺🇸 US
1-2 Accumulator Piston
Fitment notes — TRANSGO 4L652ACM
1-2 Accumulator Piston
Type-3.236" Pin Size, Short No Legs
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This table covers the pistons inside a transmission accumulator.

Accumulator Piston Pin

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8684426
🇺🇸 US 🇨🇦 CA
1-2
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GM GENUINE Fits: 4.2L L6 8628273
🇺🇸 US 🇨🇦 CA
3-4
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This table covers the Accumulator Piston pins.

Accumulator Piston Seal / Sleeve

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24206508
🇺🇸 US 🇨🇦 CA
Forward
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GM GENUINE Fits: 4.2L L6 24206509
🇺🇸 US 🇨🇦 CA
Fits 3-4or 1-2
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This table covers the Accumulator Piston Seal sleeves.

Accumulator Piston Spring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24219942
🇺🇸 US 🇨🇦 CA
1-2, OuterGreen
Fitment notes — GM GENUINE 24219942
1-2, OuterGreenOuter Spring
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GM GENUINE Fits: 4.2L L6 24220145
🇺🇸 US 🇨🇦 CA
1-2, InnerLight Green
Fitment notes — GM GENUINE 24220145
1-2, InnerLight GreenInner Spring
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This table covers the Accumulator Piston springs. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.

Accumulator Spring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24220146
🇺🇸 US 🇨🇦 CA
1-2YELLOW
Fitment notes — GM GENUINE 24220146
1-2YELLOWINNER
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GM GENUINE Fits: 4.2L L6 8639074
🇺🇸 US 🇨🇦 CA
3-4BLUE
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GM GENUINE Fits: 4.2L L6 24208765
🇺🇸 US 🇨🇦 CA
Forward
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This table covers the Accumulator springs. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.

Actuator Feed Limit Valve

Brand Part Number Markets Notes Buy
TRANSGO Fits: 4.2L L6 4L60EAFLOS
🇺🇸 US
Actuator Feed Limit Valve (Oversized)
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This table covers the Actuator Feed Limit valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

Band

Brand Part Number Markets Notes Buy
BORG-WARNER Popular Fits: 4.2L L6 27363BW
🇺🇸 US 🇨🇦 CA
High Energy FLEX-BAND®
Fitment notes — BORG-WARNER 27363BW
High Energy FLEX-BAND®
2-4
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PA CARGO Popular Fits: 4.2L L6 77700A
🇺🇸 US 🇨🇦 CA
4 Speed RWD/4X4 4L60E Transmission
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ATP Fits: 4.2L L6 CX42
🇺🇸 US
2-4OE width 2.25"
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GM GENUINE Fits: 4.2L L6 24232236
🇺🇸 US 🇨🇦 CA
2-4
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PIONEER Fits: 4.2L L6 767015
🇺🇸 US
2-4
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SONNAX Fits: 4.2L L6 7770001K
🇺🇸 US
Kevlar Material
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This table covers the apply bands inside the automatic transmission.

Band Anchor Pin

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8654581
🇺🇸 US 🇨🇦 CA
2-4
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GM GENUINE Fits: 4.2L L6 8680500
🇺🇸 US 🇨🇦 CA
IDENTIFY BY 2 GROOVES IN TAPERED POINT
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GM GENUINE Fits: 4.2L L6 8680499
🇺🇸 US 🇨🇦 CA
IDENTIFY BY 1 GROOVE IN TAPERED POINT
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GM GENUINE Fits: 4.2L L6 8680501
🇺🇸 US 🇨🇦 CA
NO GROOVE, CODE AAY, HJ, NHIDENTIFY BY NO GROOVES IN TAPERED POINT
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This table covers the Band Anchor pins.

Boost Valve

Brand Part Number Markets Notes Buy
TRANSGO Popular Fits: 4.2L L6 4L60EBOOST
🇺🇸 US
.500" Boost Valve and Bushing Steel Replacement Kit
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SONNAX Fits: 4.2L L6 700R4LB1
🇺🇸 US
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SONNAX Fits: 4.2L L6 4L60ELB2
🇺🇸 US
Late Style Long Boost Sleeve, 1.810" Length
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SONNAX Fits: 4.2L L6 4L60ELB1
🇺🇸 US
Early Style Long Boost Sleeve, 1.907" Length
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TRANSGO Fits: 4.2L L6 4L60EBOOST472
🇺🇸 US
.472" Boost Valve and Bushing Steel Replacement Kit
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This table covers the Boost valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

Bushing

Brand Part Number Markets Notes Buy
DURA-BOND Popular Fits: 4.2L L6 GMT34
🇺🇸 US
Reverse Drum (Front)
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DURA-BOND Popular Fits: 4.2L L6 GMT31A
🇺🇸 US
Stator (Front) (Large Diameter).670 Length
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ATP Fits: 4.2L L6 SB33
🇺🇸 US
Reaction carrier shaft - front
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DURA-BOND Fits: 4.2L L6 8628917
🇺🇸 US
Reverse Drum (Rear)
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DURA-BOND Fits: 4.2L L6 8642907
🇺🇸 US
Reaction Shaft (Rear)
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PIONEER Fits: 4.2L L6 755051
🇺🇸 US
FrontReaction carrier shaft
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This table covers the bushings in this assembly. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Bushing Kit

Brand Part Number Markets Notes Buy
DURA-BOND Fits: 4.2L L6 TK23
🇺🇸 US
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DURA-BOND Fits: 4.2L L6 TK23EK
🇺🇸 US
Essentials Kit
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DURA-BOND Fits: 4.2L L6 TK23HP
🇺🇸 US
High Performance Kit
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PA CARGO Fits: 4.2L L6 K77901A
🇺🇸 US 🇨🇦 CA
4 Speed RWD/4X4 4L60E Transmission
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This table covers the Bushing kits.

Case Bushing

Brand Part Number Markets Notes Buy
DURA-BOND Fits: 4.2L L6 2272
🇺🇸 US
Case
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This table covers the Case bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Case Cover

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24261713
🇺🇸 US 🇨🇦 CA
Left
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GM GENUINE Fits: 4.2L L6 24261712
🇺🇸 US 🇨🇦 CA
Right
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This table covers the Case covers.

Case Vent

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 25892279
🇺🇸 US 🇨🇦 CA
RearVent Stem with Cap
Fitment notes — GM GENUINE 25892279
RearVent Stem with CapAxle Vent
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GM GENUINE Fits: 4.2L L6 15743069
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 15743069
Front4WDAxle Vent
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GM GENUINE Fits: 4.2L L6 24202440
🇺🇸 US 🇨🇦 CA
Vent Pipe
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This table covers the vents on a transmission or axle housing.

Clutch Apply Plate

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24212462
🇺🇸 US 🇨🇦 CA
Forward4.27MM-4.38MM THICK
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GM GENUINE Fits: 4.2L L6 8685044
🇺🇸 US 🇨🇦 CA
3-4
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SONNAX Fits: 4.2L L6 7414001K
🇺🇸 US
Requires 1991 and later 3-4 apply ring stamped with number 7, measuring 3.671-3.682" in height
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This table covers the Clutch Apply plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.

Clutch Apply Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8685043
🇺🇸 US 🇨🇦 CA
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This table covers the Clutch Apply rings.

Clutch Housing

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.2L L6 24245624
🇺🇸 US 🇨🇦 CA
Reverse
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SONNAX Popular Fits: 4.2L L6 7773351K
🇺🇸 US
Input Drum Reinforcement Kit
Fitment notes — SONNAX 7773351K
Input Drum Reinforcement Kit
This kit must be used with a 1997 or later stamped steel forward piston, it cannot be used with 1996 or earlier aluminum forward piston or Sonnax billet forward piston 7776401
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GM GENUINE Fits: 4.2L L6 24205298
🇺🇸 US 🇨🇦 CA
ForwardINCLUDES HOUSINGS AND VALVE
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GM GENUINE Fits: 4.2L L6 19418732
🇺🇸 US 🇨🇦 CA
Width: 8.25 In
Fitment notes — GM GENUINE 19418732
Width: 8.25 In
3-44 speed
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GM GENUINE Fits: 4.2L L6 19418733
🇺🇸 US 🇨🇦 CA
Width: 16.1 In
Fitment notes — GM GENUINE 19418733
Width: 16.1 In
3-4
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SONNAX Fits: 4.2L L6 7773306KA
🇺🇸 US
Smart-Tech Input Housing Kit
Fitment notes — SONNAX 7773306KA
Smart-Tech Input Housing Kit
Input Clutch
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SONNAX Fits: 4.2L L6 7773312KA
🇺🇸 US
Smart-Tech Input Housing Kit with Heavy Duty Input Shaft
Fitment notes — SONNAX 7773312KA
Smart-Tech Input Housing Kit with Heavy Duty Input Shaft
Input ClutchFits 300mm Reluctor Style Units Only
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SONNAX Fits: 4.2L L6 7773310KA
🇺🇸 US
Smart-Tech Input Housing Kit with Heavy Duty Input Shaft
Fitment notes — SONNAX 7773310KA
Smart-Tech Input Housing Kit with Heavy Duty Input Shaft
Input ClutchFits 298mm Units With 30-Spline Input Shaft
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This table covers the Clutch housings.

Clutch Housing Thrust Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8642066
🇺🇸 US 🇨🇦 CA
INPUT
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This table covers the Clutch Housing Thrust bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Clutch Hub

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 74574HD
🇺🇸 US
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This table covers the Clutch hubs.

Clutch Pack Piston

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.2L L6 24200290
🇺🇸 US 🇨🇦 CA
3-4
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GM GENUINE Fits: 4.2L L6 24205273
🇺🇸 US 🇨🇦 CA
OverrunSTEEL with INTEGRAL SEAL
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GM GENUINE Fits: 4.2L L6 24205272
🇺🇸 US 🇨🇦 CA
ForwardINCLUDES SEALING ELEMENT
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GM GENUINE Fits: 4.2L L6 8685549
🇺🇸 US 🇨🇦 CA
Low / Reverse
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GM GENUINE Fits: 4.2L L6 8667841
🇺🇸 US 🇨🇦 CA
Reverse Piston
Fitment notes — GM GENUINE 8667841
Reverse Piston
Reverse.095 HOLE
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This table covers the pistons that apply a clutch pack.

Clutch Pack Piston Dam / Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8648987
🇺🇸 US 🇨🇦 CA
Low / ReverseSquare Ring Center
Fitment notes — GM GENUINE 8648987
Low / ReverseSquare Ring CenterIncludes INR,OTR and Inter Seals
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This table covers the seals at the Clutch Pack Piston Dam. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Clutch Plate

Backing Plate

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.2L L6 24212459
🇺🇸 US 🇨🇦 CA
3-43.90-4.10mm
Fitment notes — GM GENUINE 24212459
3-43.90-4.10mmClutch Backing Plate
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GM GENUINE Popular Fits: 4.2L L6 24212461
🇺🇸 US 🇨🇦 CA
3-45.68-5.88mm
Fitment notes — GM GENUINE 24212461
3-45.68-5.88mmClutch Backing Plate
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GM GENUINE Popular Fits: 4.2L L6 24212460
🇺🇸 US 🇨🇦 CA
3-44.79-4.99mm
Fitment notes — GM GENUINE 24212460
3-44.79-4.99mmClutch Backing Plate
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GM GENUINE Popular Fits: 4.2L L6 24212468
🇺🇸 US 🇨🇦 CA
Forward5.74mm-5.89mm
Fitment notes — GM GENUINE 24212468
Forward5.74mm-5.89mmClutch Backing Plate
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GM GENUINE Fits: 4.2L L6 24212467
🇺🇸 US 🇨🇦 CA
ForwardIdentification D
Fitment notes — GM GENUINE 24212467
ForwardIdentification D5.15mm-5.30mmClutch Backing Plate
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GM GENUINE Fits: 4.2L L6 24205267
🇺🇸 US 🇨🇦 CA
Steel
Fitment notes — GM GENUINE 24205267
Steel
Reversewith Holes In Turbine Plates1.97mm ThickInput Clutch Plate
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GM GENUINE Fits: 4.2L L6 24212466
🇺🇸 US 🇨🇦 CA
ForwardIdentification E
Fitment notes — GM GENUINE 24212466
ForwardIdentification E4.56mm-4.71mmClutch Backing Plate
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GM GENUINE Fits: 4.2L L6 24205270
🇺🇸 US 🇨🇦 CA
Steel
Fitment notes — GM GENUINE 24205270
Steel
Low / ReverseID 82.344mmHas Holes In Turbine PlatesFriction Plate
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GM GENUINE Fits: 4.2L L6 24212464
🇺🇸 US 🇨🇦 CA
Reverse6.518-6.678mm
Fitment notes — GM GENUINE 24212464
Reverse6.518-6.678mmClutch Backing Plate
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GM GENUINE Fits: 4.2L L6 24205268
🇺🇸 US 🇨🇦 CA
Steel
Fitment notes — GM GENUINE 24205268
Steel
Low / ReverseIdentification Blank1.829mmHas Holes In Turbine PlatesFriction Plate
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Friction

Brand Part Number Markets Notes Buy
ACDELCO Fits: 4.2L L6 24216946
🇺🇸 US 🇨🇦 CA
GM Original EquipmentFiber
Fitment notes — ACDELCO 24216946
GM Original EquipmentFiber
Low / ReverseSegmented-do Not Mix Segmented with Non-Segmented Clutch PlatesFlat FacedFriction Plate
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GM GENUINE Fits: 4.2L L6 24210766
🇺🇸 US 🇨🇦 CA
RearGrooved
Fitment notes — GM GENUINE 24210766
RearGrooved1.93-2.13 THKFriction Plate
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GM GENUINE Fits: 4.2L L6 24281022
🇺🇸 US 🇨🇦 CA
ForwardV-Notch
Fitment notes — GM GENUINE 24281022
ForwardV-NotchDouble Parallel GroovesFriction Plate
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GM GENUINE Fits: 4.2L L6 8654325
🇺🇸 US 🇨🇦 CA
Steel
Fitment notes — GM GENUINE 8654325
Steel
ForwardFriction Plate
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GM GENUINE Fits: 4.2L L6 8642154
🇺🇸 US 🇨🇦 CA
RearFlat Steel
Fitment notes — GM GENUINE 8642154
RearFlat Steel2.34MM THKFriction Plate
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Wave Plate

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24062825
🇺🇸 US 🇨🇦 CA
Low / ReverseWave Plate
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GM GENUINE Fits: 4.2L L6 8663074
🇺🇸 US 🇨🇦 CA
ReverseWave Plate
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Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24281020
🇺🇸 US 🇨🇦 CA
Fiber
Fitment notes — GM GENUINE 24281020
Fiber
Reverse153mm DiameterInput Clutch Plate
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GM GENUINE Fits: 4.2L L6 24059570
🇺🇸 US 🇨🇦 CA
OverrunFriction Plate
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This table covers the Clutch plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.

Clutch Plate Pack

Friction Plate & Steel Plate Pack

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.2L L6 24238603
🇺🇸 US 🇨🇦 CA
Clutch Plate Kit with Friction and Steel Plates
Fitment notes — GM GENUINE 24238603
Clutch Plate Kit with Friction and Steel Plates
Single Large Tooth is ID Feature For HD PLT.Includes Reverse Input, Overrun, Forward, 3-4, and Lowith Reverse Fiber Clutch Plate AssemblyIncludes Only 3-4 Clutch Steel PlatesColor of REG 3-4 STL CLU PLT was Silver and Color of HD 3-4 STL Cluplt was Blue. Now Both REG and HD Are Blue. Single Open Circular Indent On..
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Friction Plate Pack

Brand Part Number Markets Notes Buy
RAYBESTOS POWERTRAIN Popular Fits: 4.2L L6 RCP96087
🇺🇸 US
Clutch Pack Module With 6 High Energy 3rd, 4th Clutches
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RAYBESTOS POWERTRAIN Fits: 4.2L L6 RCPBP04
🇺🇸 US
Blue Plate Kit
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RAYBESTOS POWERTRAIN Fits: 4.2L L6 RCP96140
🇺🇸 US
Clutch Pack Module With 3-4 Z Pak
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RAYBESTOS POWERTRAIN Fits: 4.2L L6 RCPS15
🇺🇸 US
Stage-1 Performance Module
Fitment notes — RAYBESTOS POWERTRAIN RCPS15
Stage-1 Performance Module
Stage-1, Performance Module (Use With STMGM17)
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RAYBESTOS POWERTRAIN Fits: 4.2L L6 RCPS20
🇺🇸 US
Stage-1 Performance ModuleContains .080" 3-4 Frictions
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Steel Plate Pack

Brand Part Number Markets Notes Buy
RAYBESTOS POWERTRAIN Fits: 4.2L L6 000752
🇺🇸 US
Steel Module
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RAYBESTOS POWERTRAIN Fits: 4.2L L6 000596
🇺🇸 US
Steel Module With Turbulated Plates Used With 3-4 Steel Lindered
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RAYBESTOS POWERTRAIN Fits: 4.2L L6 000751
🇺🇸 US
Steel Module With 1 Extra .078" 3rd, 4th Steel Plate
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This table covers the clutch-plate packs inside the transmission or transfer case.

Clutch Plate Retaining Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8663636
🇺🇸 US 🇨🇦 CA
3-4Backing Plate
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This table covers the Clutch Plate Retaining rings.

Clutch Seal Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8681292
🇺🇸 US 🇨🇦 CA
Reverse
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This table covers the Clutch Seal rings.

Clutch Spring

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.2L L6 24206085
🇺🇸 US 🇨🇦 CA
Overrun
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GM GENUINE Fits: 4.2L L6 8642227
🇺🇸 US 🇨🇦 CA
Low / Reverse
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GM GENUINE Fits: 4.2L L6 24245066
🇺🇸 US 🇨🇦 CA
Reverse
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GM GENUINE Fits: 4.2L L6 8685244
🇺🇸 US 🇨🇦 CA
3-4105.12MM O.D.
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TRANSGO Fits: 4.2L L6 7CS
🇺🇸 US
High RPM (3-4/FWD) Clutch Spring Kit
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This table covers the Clutch springs. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.

Clutch Support

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 19432695
🇺🇸 US 🇨🇦 CA
Low / Reverse
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This table covers the Clutch supports.

Components

Brand Part Number Markets Notes Buy
SONNAX Popular Fits: 4.2L L6 7775421
🇺🇸 US 🇨🇦 CA
Forward & Reverse Abuse Bore Plug
Fitment notes — SONNAX 7775421
Forward & Reverse Abuse Bore Plug
4L60-E Transmission Code
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SONNAX Popular Fits: 4.2L L6 77701076
🇺🇸 US 🇨🇦 CA
Servo Release Check Valve Kit
Fitment notes — SONNAX 77701076
Servo Release Check Valve Kit
4L60-E Transmission Code
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SONNAX Popular Fits: 4.2L L6 7775435K
🇺🇸 US 🇨🇦 CA
Forward & Reverse Abuse Valve Kit
Fitment notes — SONNAX 7775435K
Forward & Reverse Abuse Valve Kit
4L60-E Transmission Code
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SONNAX Popular Fits: 4.2L L6 77805EK
🇺🇸 US 🇨🇦 CA
TCC Apply Valve Kit
Fitment notes — SONNAX 77805EK
TCC Apply Valve Kit
4L60-E Transmission Code
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SONNAX Popular Fits: 4.2L L6 7796408K
🇺🇸 US 🇨🇦 CA
3-4 Relay O-Ringed End Plug Kit
Fitment notes — SONNAX 7796408K
3-4 Relay O-Ringed End Plug Kit
4L60-E Transmission Code
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GM GENUINE Fits: 4.2L L6 8680764
🇺🇸 US 🇨🇦 CA
Fits ForwardM6X1X17.7or 4WD
Fitment notes — GM GENUINE 8680764
Fits:
ForwardM6X1X17.7or 4WDM6X1X17.7
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SONNAX Fits: 4.2L L6 7773105
🇺🇸 US 🇨🇦 CA
Batwing Washer
Fitment notes — SONNAX 7773105
Batwing Washer
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 7775423
🇺🇸 US 🇨🇦 CA
3-2 Control Valve Spring
Fitment notes — SONNAX 7775423
3-2 Control Valve Spring
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 7774701
🇺🇸 US 🇨🇦 CA
Captured Front Planetary Bearing
Fitment notes — SONNAX 7774701
Captured Front Planetary Bearing
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 7773103
🇺🇸 US 🇨🇦 CA
Pinion Needle Roller
Fitment notes — SONNAX 7773103
Pinion Needle Roller
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 7775408
🇺🇸 US 🇨🇦 CA
CLIP
Fitment notes — SONNAX 7775408
CLIP
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 77805S25
🇺🇸 US 🇨🇦 CA
Replacement Seal
Fitment notes — SONNAX 77805S25
Replacement Seal
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 7791103SK
🇺🇸 US 🇨🇦 CA
Replacement Seal Kit
Fitment notes — SONNAX 7791103SK
Replacement Seal Kit
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 77704S
🇺🇸 US 🇨🇦 CA
Enhanced Performance Accumulator Spring
Fitment notes — SONNAX 77704S
Enhanced Performance Accumulator Spring
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 3491301
🇺🇸 US 🇨🇦 CA
Shift Cable Mount Bracket
Fitment notes — SONNAX 3491301
Shift Cable Mount Bracket
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 7773102K
🇺🇸 US 🇨🇦 CA
Pinion Pin
Fitment notes — SONNAX 7773102K
Pinion Pin
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 77777LK
🇺🇸 US 🇨🇦 CA
Accumulator Valve Train Kit
Fitment notes — SONNAX 77777LK
Accumulator Valve Train Kit
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 77777MK
🇺🇸 US 🇨🇦 CA
Accumulator Valve Train Kit
Fitment notes — SONNAX 77777MK
Accumulator Valve Train Kit
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 7796404K
🇺🇸 US 🇨🇦 CA
Oversized 4-3 Sequence Valve Kit
Fitment notes — SONNAX 7796404K
Oversized 4-3 Sequence Valve Kit
4L60-E Transmission Code
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SONNAX Fits: 4.2L L6 77754RM5
🇺🇸 US 🇨🇦 CA
Reamer
Fitment notes — SONNAX 77754RM5
Reamer
4L60-E Transmission Code
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TRANSGO Fits: 4.2L L6 4L60EABUSEBP
🇺🇸 US
Reverse Abuse Bore (Divider) Plugs
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This table covers the related components grouped with this assembly.

Conductor Plate

Brand Part Number Markets Notes Buy
ROSTRA Fits: 4.2L L6 550034
🇺🇸 US
Reman
Fitment notes — ROSTRA 550034
Reman
REBUILT VALVE BODY
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This table covers the Conductor plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.

Control Solenoid Valve Retainer

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8680781
🇺🇸 US 🇨🇦 CA
Length (mm): 25.55 mm
Fitment notes — GM GENUINE 8680781
Length (mm): 25.55 mm
Fits:
1-2-3-4or 3-2
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This table covers the Control Solenoid Valve retainers.

Dipstick / Fluid Filler Tube

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 15913563
🇺🇸 US 🇨🇦 CA
Mounting Bracket Included: YES
Fitment notes — GM GENUINE 15913563
Mounting Bracket Included: YES
4 Speed
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This table covers the Dipstick / Fluid Filler tubes.

Dipstick / Fluid Filler Tube Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 1259475
🇺🇸 US 🇨🇦 CA
AT CASE
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This table covers the seals at the Dipstick / Fluid Filler Tube. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Extension Housing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24241496
🇺🇸 US 🇨🇦 CA
Length: 16.75 In
Fitment notes — GM GENUINE 24241496
Length: 16.75 In
RWD
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This table covers the Extension housings.

Extension Housing Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 08680874
🇺🇸 US 🇨🇦 CA
M10X1.5X33.4
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This table covers the Extension Housing bolts.

Extension Housing Bushing

Brand Part Number Markets Notes Buy
DURA-BOND Fits: 4.2L L6 GMT32
🇺🇸 US
Extension Housing
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DURA-BOND Fits: 4.2L L6 GMT32T
🇺🇸 US
Coated
Fitment notes — DURA-BOND GMT32T
Coated
Extension Housing
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This table covers the Extension Housing bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Extension Housing Gasket

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24208660
🇺🇸 US 🇨🇦 CA
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PIONEER Fits: 4.2L L6 749296
🇺🇸 US
6 BoltExtension Housing To Transfer Case Adapter
Fitment notes — PIONEER 749296
6 BoltExtension Housing To Transfer Case AdapterFor Transfer Cases 119, 129, 208, 241, 242, 247, 249, 231
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PIONEER Fits: 4.2L L6 749295
🇺🇸 US
5 BoltExtension Housing To Transfer Case Adapter
Fitment notes — PIONEER 749295
5 BoltExtension Housing To Transfer Case AdapterFor Transfer Cases 207, 231, 233, 236
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This table covers the gaskets that seal the Extension Housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Extension Housing Seal

Brand Part Number Markets Notes Buy
NATIONAL Popular Fits: 4.2L L6 4934
🇺🇸 US
Boot Typewith GMC 4L60-E Transmission
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TIMKEN Popular Fits: 4.2L L6 9613S
🇺🇸 US
2.222 in. Shaft Size3.5 in. Bore
Fitment notes — TIMKEN 9613S
2.222 in. Shaft Size3.5 in. Bore3.6 in. Outer Diam.35 in. Width
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ATP Fits: 4.2L L6 CO36
🇺🇸 US
Width- 1.3750", ID- 1.8125", OD-2.8750"
Fitment notes — ATP CO36
Width- 1.3750", ID- 1.8125", OD-2.8750"
with Boot
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BCA Fits: 4.2L L6 NS4583
🇺🇸 US
External Markings: 1.502 X 2.377 X 0.374
Fitment notes — BCA NS4583
External Markings: 1.502 X 2.377 X 0.374
without Boot
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NATIONAL Fits: 4.2L L6 4583
🇺🇸 US
with GMC 4L60-E Transmissionwithout Boot
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PIONEER Fits: 4.2L L6 759115
🇺🇸 US
with Boot
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SCHAEFFLER Fits: 4.2L L6 SS2575
🇺🇸 US
1.5" I:D X 2.38" O.D. X 0.37" Width
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WJB / INMOTION PARTS Fits: 4.2L L6 WS4583
🇺🇸 US
without Bootwith GMC 4L60-E Transmission
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WJB / INMOTION PARTS Fits: 4.2L L6 WS4934
🇺🇸 US
Boot Typewith GMC 4L60-E Transmission
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This table covers the seals at the Extension Housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Filter

Economy

Brand Part Number Markets Notes Buy
ATP Popular Fits: 4.2L L6 TF165
🇺🇸 US
OE Replacement
Fitment notes — ATP TF165
OE Replacement
2-7/8" Deep Oil Pan
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CHAMP / LUBER-FINER Fits: 4.2L L6 T715A
🇺🇸 US
Deep pan
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VARIOUS MFR Fits: 4.2L L6 PT1211
🇺🇸 US
Standard
Fitment notes — VARIOUS MFR PT1211
Standard
RWDAftermarket Style GasketShallow Pan - 57mm (2.25 inch)
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VARIOUS MFR Fits: 4.2L L6 PT1318
🇺🇸 US
Standard
Fitment notes — VARIOUS MFR PT1318
Standard
4WDAftermarket Style Gasket
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VARIOUS MFR Fits: 4.2L L6 PT1267
🇺🇸 US
Standard
Fitment notes — VARIOUS MFR PT1267
Standard
RWDAftermarket Style GasketDeep Pan - 73mm (2.78 inch)
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Standard Replacement

Brand Part Number Markets Notes Buy
FVP Popular Fits: 4.2L L6 T8847
🇺🇸 US
Deep pan
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HASTINGS / BALDWIN Popular Fits: 4.2L L6 TF113
🇺🇸 US
Shallow Pan 2-1/4 In
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RAYBESTOS POWERTRAIN Popular Fits: 4.2L L6 515704
🇺🇸 US
Deep pan
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WIX Popular Fits: 4.2L L6 58847
🇺🇸 US
with Deep Pan
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ACDELCO Fits: 4.2L L6 TF289
🇺🇸 US 🇨🇦 CA
GoldIncludes Pan Gasket
Fitment notes — ACDELCO TF289
GoldIncludes Pan Gasket
16 BoltShallow Pan
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ACDELCO Fits: 4.2L L6 TF337
🇺🇸 US 🇨🇦 CA
GoldIncludes Pan Gasket
Fitment notes — ACDELCO TF337
GoldIncludes Pan Gasket
With 2-7/8" Deep Oil Pan
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ATP Fits: 4.2L L6 B126
🇺🇸 US
Premium ReplacementIncludes: (1) Pan Gasket, (1) Filter
Fitment notes — ATP B126
Premium ReplacementIncludes: (1) Pan Gasket, (1) FilterWith 3rd Hand Gasket
2-1/4" Deep Oil PanOil Pan
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ATP Fits: 4.2L L6 B165
🇺🇸 US
Includes: (1) 3rd hand gasket, (1) filterPremium Replacement
Fitment notes — ATP B165
Includes: (1) 3rd hand gasket, (1) filterPremium Replacement
OE Stylewith 2-7/8" Deep Oil Pan
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ATP Fits: 4.2L L6 JX150
🇺🇸 US
In-Line Filter KitIncludes: (2) Hoses, (4) Clamps
Fitment notes — ATP JX150
In-Line Filter KitIncludes: (2) Hoses, (4) ClampsPlastic Body5/16" Double Barbs5/16" Double Barbs
with 5/16" Double BarbsExternal, Add-On In-Line Filter
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ATP Fits: 4.2L L6 B248
🇺🇸 US
Premium ReplacementDoes Not Include 3rd Hand Gasket
Fitment notes — ATP B248
Premium ReplacementDoes Not Include 3rd Hand Gasket
2-7/8" Deep Pan
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ATP Fits: 4.2L L6 JX151
🇺🇸 US
In-Line Filter KitInline Cooler Filter
Fitment notes — ATP JX151
In-Line Filter KitInline Cooler FilterSmall Footprint Aluminum Body5/16" Double Barbs
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ATP Fits: 4.2L L6 IL150
🇺🇸 US
In-Line Filter KitInline Cooler Filter
Fitment notes — ATP IL150
In-Line Filter KitInline Cooler FilterPlastic Body or Small Footprint Aluminum Body5/16" Double Barbs
In-line Filter
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BECK/ARNLEY Fits: 4.2L L6 0440359
🇺🇸 US
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FVP Fits: 4.2L L6 T8904
🇺🇸 US
Shallow Pan
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GM GENUINE Fits: 4.2L L6 19542003
🇺🇸 US 🇨🇦 CA
Used with Deep Pan 76.6mm
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HASTINGS / BALDWIN Fits: 4.2L L6 TF156
🇺🇸 US
Deep Pan 2-7/8 In
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PIONEER Fits: 4.2L L6 745174
🇺🇸 US
2-7/8" Deep PanAftermarket Design
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PIONEER Fits: 4.2L L6 745263
🇺🇸 US
Includes (1) 3rd Hand Gasket, (1) Filter
Fitment notes — PIONEER 745263
Includes (1) 3rd Hand Gasket, (1) Filter
OE StyleLength: 9.375"Height: 2-7/8" Deep Oil Pan
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PIONEER Fits: 4.2L L6 745119
🇺🇸 US
Inline Cooler FilterIn-Line Filter Kit
Fitment notes — PIONEER 745119
Inline Cooler FilterIn-Line Filter KitInline Filter
In-line Filter
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WIX Fits: 4.2L L6 58904
🇺🇸 US
with Shallow Pan
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This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.

Filter Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 08685775
🇺🇸 US 🇨🇦 CA
SINGLE USE
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This table covers the seals at the Filter. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Fluid Cooler Line / Hose

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.2L L6 15817501
🇺🇸 US 🇨🇦 CA
Inlet4 speed
Fitment notes — GM GENUINE 15817501
Inlet4 speedFROM QUICK CONNECT TO TRANS
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SUNSONG Popular Fits: 4.2L L6 5801243
🇺🇸 US
Fits Oil Cooler Inlet Tube To Transmission (Front)without Auxiliary Cooleror Outlet to Transmission (Driver Side)
Fitment notes — SUNSONG 5801243
Fits:
Oil Cooler Inlet Tube To Transmission (Front)without Auxiliary Cooleror Outlet to Transmission (Driver Side)with Auxiliary Cooler
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GM GENUINE Fits: 4.2L L6 15817500
🇺🇸 US 🇨🇦 CA
Inlet4 Speed
Fitment notes — GM GENUINE 15817500
Inlet4 SpeedAir Conditioning Front Automatic/Auxiliary Control(CJ2), FrontDual Zone Climate Control with Manual Controls (blue/Red dials only)
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GM GENUINE Fits: 4.2L L6 15817514
🇺🇸 US 🇨🇦 CA
Outlet4 Speed
Fitment notes — GM GENUINE 15817514
Outlet4 SpeedFrom Radiator To ConnectorAir Conditioning Front Automatic/Auxiliary Control(CJ2), FrontDual Zone Climate Control with Manual Controls (blue/Red dials only)
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GM GENUINE Fits: 4.2L L6 15817515
🇺🇸 US 🇨🇦 CA
Outlet4 speed
Fitment notes — GM GENUINE 15817515
Outlet4 speedFROM QUICK CONNECT TO TRANS
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SKP Fits: 4.2L L6 SK624956
🇺🇸 US
Radiator Oil Cooler Inlet (Lower)From Radiator to Quick Connect
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SUNSONG Fits: 4.2L L6 5801245
🇺🇸 US
Inlet To Transmission (Lower)Drivers Side
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SUNSONG Fits: 4.2L L6 5801244
🇺🇸 US
Oil Cooler Inlet Tube To Transmission (Front)with Auxiliary Cooler
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SUNSONG Fits: 4.2L L6 5801242
🇺🇸 US
Fits Inlet To Transmission (Passenger Side)without Auxiliary Cooleror Outlet (Passenger Side) To Transmission (Rear)
Fitment notes — SUNSONG 5801242
Fits:
Inlet To Transmission (Passenger Side)without Auxiliary Cooleror Outlet (Passenger Side) To Transmission (Rear)with Auxiliary Cooler
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This table covers the Fluid Cooler Line hoses. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.

Fluid Cooler Line / Hose Connector

Brand Part Number Markets Notes Buy
FOUR SEASONS Fits: 4.2L L6 53024
🇺🇸 US
Transmission Line Fitting KitUse On Vehicles with Snap-In Transmission Line Fitting
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GM GENUINE Fits: 4.2L L6 15226661
🇺🇸 US 🇨🇦 CA
End Fitting
Fitment notes — GM GENUINE 15226661
End Fitting
Air Conditioning Front Automatic/Auxiliary Control(CJ2), FrontDual Zone Climate Control with Manual Controls (blue/Red dials only)9/16-183/8 Body Quick ConnectAt Radiatorwith Beveled Washer
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GM GENUINE Fits: 4.2L L6 19125677
🇺🇸 US 🇨🇦 CA
End FittingSteel
Fitment notes — GM GENUINE 19125677
End FittingSteel
Quick Connector, Non BallSpecialShort1/4 X 18 NPS
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HAYDEN Fits: 4.2L L6 397
🇺🇸 US
Transmission Line Fitting KitUse On Vehicles with Snap-In Transmission Line Fitting
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This table covers the harness connectors at the Fluid Cooler Line / Hose. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Fluid Cooler Line Clip

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24205103
🇺🇸 US 🇨🇦 CA
3/8, 17.4mm OD
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GM GENUINE Fits: 4.2L L6 15068848
🇺🇸 US 🇨🇦 CA
Hose & Tube Assembly Clip
Fitment notes — GM GENUINE 15068848
Hose & Tube Assembly Clip
Line To LineHolds 2-9.5mm (3/8) DIA Pipes, Clip Top, Plastic
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This table covers the Fluid Cooler Line clips.

Fluid Pan

Brand Part Number Markets Notes Buy
DORMAN Fits: 4.2L L6 265811
🇺🇸 US
OE FIX3" Depth
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GM GENUINE Fits: 4.2L L6 24240207
🇺🇸 US 🇨🇦 CA
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SKP Fits: 4.2L L6 SK265811
🇺🇸 US
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SPECTRA PREMIUM Fits: 4.2L L6 TP0811
🇺🇸 US
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This table covers the pans that hold automatic-transmission fluid.

Fluid Pan Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24231519
🇺🇸 US 🇨🇦 CA
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This table covers the Fluid Pan bolts.

Fluid Pan Gasket

Brand Part Number Markets Notes Buy
FEL-PRO Popular Fits: 4.2L L6 TOS18663
🇺🇸 US
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GM GENUINE Popular Fits: 4.2L L6 8654799
🇺🇸 US 🇨🇦 CA
Rubber End Pieces Included: No
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ATP Fits: 4.2L L6 SG30
🇺🇸 US
Replacement GasketAftermarket Style
Fitment notes — ATP SG30
Replacement GasketAftermarket StyleFiber
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GM GENUINE Fits: 4.2L L6 19540975
🇺🇸 US 🇨🇦 CA
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MAHLE / CLEVITE Fits: 4.2L L6 W39365
🇺🇸 US
Cork-Rubber
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MAHLE / CLEVITE Fits: 4.2L L6 W39365TC
🇺🇸 US
Cork with Metal Carrier
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PIONEER Fits: 4.2L L6 749014
🇺🇸 US
Fiber
Fitment notes — PIONEER 749014
Fiber
Replacement GasketAftermarket Style
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VICTOR REINZ Fits: 4.2L L6 711494200
🇺🇸 US
16 Bolt
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This table covers the gaskets that seal the Fluid Pan. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Fluid Pan Magnet

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 29535617
🇺🇸 US 🇨🇦 CA
Length: 1.8 In
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This table covers the Fluid Pan magnets.

Fluid Pump

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 19434976
🇺🇸 US 🇨🇦 CA
Reman
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This table covers the Fluid pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.

Fluid Pump Bushing

Brand Part Number Markets Notes Buy
DURA-BOND Fits: 4.2L L6 61005
🇺🇸 US
Pump body
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DURA-BOND Fits: 4.2L L6 61005T
🇺🇸 US
Coated
Fitment notes — DURA-BOND 61005T
Coated
Pump body
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DURA-BOND Fits: 4.2L L6 61005TG
🇺🇸 US
Dry Film Lubricated
Fitment notes — DURA-BOND 61005TG
Dry Film Lubricated
Pump BodyDry Film Lubricant
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This table covers the Fluid Pump bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Fluid Pump Cover Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24233361
🇺🇸 US 🇨🇦 CA
Includes Seal
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This table covers the Fluid Pump Cover bolts.

Fluid Pump Gasket

Brand Part Number Markets Notes Buy
ATP Fits: 4.2L L6 SG40
🇺🇸 US
Position: Front Pump to Case
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GM GENUINE Fits: 4.2L L6 12337931
🇺🇸 US 🇨🇦 CA
Front
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PIONEER Fits: 4.2L L6 749084
🇺🇸 US
front pump to case
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This table covers the gaskets that seal the Fluid Pump. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Fluid Pump Repair Sleeve

Brand Part Number Markets Notes Buy
NATIONAL Fits: 4.2L L6 99174
🇺🇸 US
with GMC 4L60-E Transmission
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WJB / INMOTION PARTS Fits: 4.2L L6 WS99174
🇺🇸 US
Frontwith GMC 4L60-E Transmission
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This table covers the precision wear sleeves used to restore a transmission pump seal surface.

Fluid Pump Rotor

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24219539
🇺🇸 US 🇨🇦 CA
17.961 mm
Fitment notes — GM GENUINE 24219539
17.961 mm
17.961MM13 VANEROTOR ID MARK = 2 DIMPLES
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GM GENUINE Fits: 4.2L L6 24219542
🇺🇸 US 🇨🇦 CA
18.00 mm
Fitment notes — GM GENUINE 24219542
18.00 mm
18.00MM13 VANEROTOR ID MARK = 2 DIMPLES
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GM GENUINE Fits: 4.2L L6 24219541
🇺🇸 US 🇨🇦 CA
17.987 mm
Fitment notes — GM GENUINE 24219541
17.987 mm
17.987MM13 VANEROTOR ID MARK = 2 DIMPLES
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GM GENUINE Fits: 4.2L L6 24219538
🇺🇸 US 🇨🇦 CA
17.948 mm
Fitment notes — GM GENUINE 24219538
17.948 mm
17.948MM13 VANEROTOR ID MARK = 2 DIMPLES
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This table covers the Fluid Pump rotors. Typical signs include shudder under braking, or a lip at the outer edge. Do not put new pads on a rotor that is below minimum thickness.

Fluid Pump Seal

Brand Part Number Markets Notes Buy
NATIONAL Popular Fits: 4.2L L6 4950
🇺🇸 US
FrontGeneral Motors trans.
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WJB / INMOTION PARTS Popular Fits: 4.2L L6 WS4950
🇺🇸 US
FrontGeneral Motors trans.
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ATP Fits: 4.2L L6 CO37
🇺🇸 US
Outer Diameter: 2.875"
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BCA Fits: 4.2L L6 NS4950
🇺🇸 US
Front
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GM GENUINE Fits: 4.2L L6 24208664
🇺🇸 US 🇨🇦 CA
Bolt Seal
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GM GENUINE Fits: 4.2L L6 24226315
🇺🇸 US 🇨🇦 CA
Wedge Type Seal Assembly
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PIONEER Fits: 4.2L L6 759026
🇺🇸 US
Outer Diameter: 2.875"Inner Diameter: 1.75"
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This table covers the seals at the Fluid Pump. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Fluid Pump Slide

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24212478
🇺🇸 US 🇨🇦 CA
Slide ID Mark = 1 DimpleMust Use Slides with 1 Dimple and Rotors with 2 Dimples as A Set or Slides and Rotors with No Dimples as A Set
Fitment notes — GM GENUINE 24212478
Slide ID Mark = 1 DimpleMust Use Slides with 1 Dimple and Rotors with 2 Dimples as A Set or Slides and Rotors with No Dimples as A Set17.9545mm Thick
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GM GENUINE Fits: 4.2L L6 24212480
🇺🇸 US 🇨🇦 CA
17.9805 mm
Fitment notes — GM GENUINE 24212480
17.9805 mm
Slide ID Mark = 1 DimpleMust Use Slides with 1 Dimple and Rotors with 2 Dimples as A Set or Slides and Rotors with No Dimples as A Set17.9805mm Thick
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GM GENUINE Fits: 4.2L L6 24212479
🇺🇸 US 🇨🇦 CA
17.9675 mm
Fitment notes — GM GENUINE 24212479
17.9675 mm
Slide ID Mark = 1 DimpleMust Use Slides with 1 Dimple and Rotors with 2 Dimples as A Set or Slides and Rotors with No Dimples as A Set17.9675mm Thick
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This table covers the slides inside the transmission fluid pump.

Fluid Screen

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8642912
🇺🇸 US 🇨🇦 CA
Includes Seal
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This table covers the Fluid screens.

Gasket Kit

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 19300335
🇺🇸 US 🇨🇦 CA
Gasket Kit
Fitment notes — GM GENUINE 19300335
Gasket Kit
FWD AND OVERRUN PISTONS
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This table covers the gasket kits for this job. Typical signs include the leaks that sent this assembly to the bench. Confirm the kit matches the opening you are sealing; unused leftover pieces often belong to another configuration.

Governor / Modulator

Brand Part Number Markets Notes Buy
TRANSGO Fits: 4.2L L6 46MOD
🇺🇸 US
Vacuum Modulator Kit
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This table covers the governors and modulators that control transmission shift pressure.

Input Carrier

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 77284K
🇺🇸 US
2.84 Ratio Input Carrier Kit
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This table covers the input carriers in the planetary gearset.

Input Shaft

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 7773311S
🇺🇸 US
Fits 300mm Non Reluctor Style Units Only
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SONNAX Fits: 4.2L L6 7773310S
🇺🇸 US
View on
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SONNAX Fits: 4.2L L6 7773312S
🇺🇸 US
Fits 300mm Reluctor Style Units Only
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This table covers the Input shafts.

Input Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8667035
🇺🇸 US 🇨🇦 CA
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This table covers the seals at the Input Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Manual Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8657163
🇺🇸 US 🇨🇦 CA
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NATIONAL Fits: 4.2L L6 8792S
🇺🇸 US
General Motors trans.
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WJB / INMOTION PARTS Fits: 4.2L L6 WS8792S
🇺🇸 US
General Motors trans.
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This table covers the seals at the Manual Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Manual Shift Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24235194
🇺🇸 US 🇨🇦 CA
Includes Seal
Fitment notes — GM GENUINE 24235194
Includes Seal
LONG128.2MM
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This table covers the Manual Shift shafts.

Manual Valve

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24203484
🇺🇸 US 🇨🇦 CA
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This table covers the manual valves in the transmission valve body. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

Output Shaft

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 74678LHD
🇺🇸 US
Heavy Duty
Fitment notes — SONNAX 74678LHD
Heavy Duty
2WD
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SONNAX Fits: 4.2L L6 74678SHD
🇺🇸 US
Heavy Duty
Fitment notes — SONNAX 74678SHD
Heavy Duty
Fits:
4WD and AWD applications only
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This table covers the Output shafts.

Output Shaft Bushing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8642181
🇺🇸 US 🇨🇦 CA
Front And Rear
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This table covers the Output Shaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Output Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8677268
🇺🇸 US 🇨🇦 CA
29 TEETH/SPLINE
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This table covers the seals at the Output Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Parking Pawl

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24235438
🇺🇸 US 🇨🇦 CA
Actuating Rod
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This table covers the parking pawls that lock the transmission in Park.

Pressure Control (EPC) Solenoid

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24248893
🇺🇸 US 🇨🇦 CA
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PA CARGO Fits: 4.2L L6 34605C
🇺🇸 US
General Motors trans.Trans. code 4L60-E
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ROSTRA Fits: 4.2L L6 520518
🇺🇸 US
EPC Solenoid Variable Force Motor
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WELLS Fits: 4.2L L6 2N1239
🇺🇸 US
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This table covers the Pressure Control (EPC) solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.

Pressure Control (EPC) Solenoid Filter

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24209144
🇺🇸 US 🇨🇦 CA
Filter Media Material: Monofilament
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This table covers the Pressure Control (EPC) Solenoid filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.

Pressure Regulator Valve

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 7791710
🇺🇸 US
Pressure Regulator Spring
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This table covers the Pressure Regulator valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

Pressure Regulator Valve Spring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8680684
🇺🇸 US 🇨🇦 CA
Inner
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SONNAX Fits: 4.2L L6 7772201K
🇺🇸 US
Pump Slide Spring
Fitment notes — SONNAX 7772201K
Pump Slide Spring
Designed specifically for high RPM Conditions
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This table covers the Pressure Regulator Valve springs. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.

Pressure Switch Manifold

Brand Part Number Markets Notes Buy
ATP Fits: 4.2L L6 JE9
🇺🇸 US
Manifold pressure
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PIONEER Fits: 4.2L L6 772011
🇺🇸 US
Manifold pressure
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ROSTRA Fits: 4.2L L6 501002
🇺🇸 US
View on
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STANDARD MOTOR PRODUCTS Fits: 4.2L L6 PSA100
🇺🇸 US
Transmission Pressure Switch Assembly
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This table covers the Pressure Switch manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone.

Reaction Carrier

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24241240
🇺🇸 US 🇨🇦 CA
High Speedwith Deflector
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GM GENUINE Fits: 4.2L L6 24241237
🇺🇸 US 🇨🇦 CA
STANDARDwithout DEFLECTOR
Fitment notes — GM GENUINE 24241237
STANDARDwithout DEFLECTORHIGH SPEED
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This table covers the reaction carriers in the planetary gearset.

Reaction Carrier Thrust Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8642215
🇺🇸 US 🇨🇦 CA
To Support52.42 ID X 72.4 OD
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GM GENUINE Fits: 4.2L L6 24217327
🇺🇸 US 🇨🇦 CA
To Reaction Shaft43.0 Inside Diameter X 64.57 Outside Diameter
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GM GENUINE Fits: 4.2L L6 24217328
🇺🇸 US 🇨🇦 CA
73.7 ID X 91 OD
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This table covers the Reaction Carrier Thrust bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Reaction Internal Gear

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24219410
🇺🇸 US 🇨🇦 CA
INPUT
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GM GENUINE Fits: 4.2L L6 24233619
🇺🇸 US 🇨🇦 CA
View on
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This table covers the Reaction Internal gears.

Reaction Internal Gear Support

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24225931
🇺🇸 US 🇨🇦 CA
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This table covers the Reaction Internal Gear supports.

Rebuild Kit

Banner Kit (Overhaul Kit + Friction Clutch Plates)

Brand Part Number Markets Notes Buy
PA CARGO Fits: 4.2L L6 DK7700FS
🇺🇸 US 🇨🇦 CA
Overhaul Kit
Fitment notes — PA CARGO DK7700FS
Overhaul Kit
Trans. code 4L60E
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PA CARGO Fits: 4.2L L6 DK7700JS
🇺🇸 US 🇨🇦 CA
Banner Kit
Fitment notes — PA CARGO DK7700JS
Banner Kit
Trans. code 4L60E
View on
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Deluxe Kit (Master Kit + Filter, Band & Common Bushings)

Brand Part Number Markets Notes Buy
PIONEER Fits: 4.2L L6 753067
🇺🇸 US
Includes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings, Friction Clutch plates, Steel Clutch Plates, Front & Rear Bushings, BandSuper Kit
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Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)

Brand Part Number Markets Notes Buy
PA CARGO Fits: 4.2L L6 DK7700F
🇺🇸 US 🇨🇦 CA
Master Kit
Fitment notes — PA CARGO DK7700F
Master Kit
Trans. code 4L60E
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PA CARGO Fits: 4.2L L6 DK7700J
🇺🇸 US 🇨🇦 CA
Master Kit
Fitment notes — PA CARGO DK7700J
Master Kit
Trans. code 4L60E
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Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)

Brand Part Number Markets Notes Buy
PA CARGO Popular Fits: 4.2L L6 K77900F
🇺🇸 US 🇨🇦 CA
Overhaul Kit
Fitment notes — PA CARGO K77900F
Overhaul Kit
Trans. code 4L60E
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PA CARGO Popular Fits: 4.2L L6 K77900J
🇺🇸 US 🇨🇦 CA
Overhaul Kit
Fitment notes — PA CARGO K77900J
Overhaul Kit
Trans. code 4L60E
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TRANSTEC Fits: 4.2L L6 80000149
🇺🇸 US 🇨🇦 CA
without PistonsDuraprene Pan Gasket
Fitment notes — TRANSTEC 80000149
without PistonsDuraprene Pan GasketIncludes All Long Lip Seals
LS4L60E, 4L65E, 4L70E4 Speed
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TRANSTEC Fits: 4.2L L6 80000738
🇺🇸 US 🇨🇦 CA
without PistonsDuraprene Pan Gasket
Fitment notes — TRANSTEC 80000738
without PistonsDuraprene Pan Gasketwith Wedge Seal (Includes All Long Lip Seals)
LS4L60E, 4L65E, 4L70E4 Speed
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This table covers the rebuild kits for this assembly.

Retaining Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8654491
🇺🇸 US 🇨🇦 CA
Torque Converter Seal Retaining Ring
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GM GENUINE Fits: 4.2L L6 8642220
🇺🇸 US 🇨🇦 CA
Internal Reaction Gear Support Retaining Ring
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GM GENUINE Fits: 4.2L L6 8654141
🇺🇸 US 🇨🇦 CA
Color: Yellow
Fitment notes — GM GENUINE 8654141
Color: Yellow
Output Shaft Retaining Ring
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This table covers the Retaining rings.

Roller Clutch

Brand Part Number Markets Notes Buy
BORG-WARNER Fits: 4.2L L6 28571AM
🇺🇸 US 🇨🇦 CA
Fits RWDLow Revers
Fitment notes — BORG-WARNER 28571AM
Fits:
RWDLow Revers
or:
4WDLow Reverse
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GM GENUINE Fits: 4.2L L6 24217231
🇺🇸 US 🇨🇦 CA
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This table covers the Roller clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc.

Servo Cover

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8642979
🇺🇸 US 🇨🇦 CA
Includes Ring
Fitment notes — GM GENUINE 8642979
Includes Ring
2-4
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This table covers the Servo covers.

Servo Cover Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24208662
🇺🇸 US 🇨🇦 CA
2-4
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This table covers the seals at the Servo Cover. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Servo Kit

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 7770104K
🇺🇸 US
2nd Gear "Corvette" Ratio Servo Kit
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SONNAX Fits: 4.2L L6 77767K
🇺🇸 US
4th Gear Super Hold Dual Servo Kit
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SONNAX Fits: 4.2L L6 7791103K
🇺🇸 US
2nd Gear Super Hold Servo Kit
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This table covers the Servo kits.

Servo Piston

Brand Part Number Markets Notes Buy
TRANSGO Fits: 4.2L L6 72P
🇺🇸 US
Servo Piston Assembly
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This table covers the pistons in a transmission servo.

Servo Piston Spring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24207758
🇺🇸 US 🇨🇦 CA
2-4
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GM GENUINE Fits: 4.2L L6 8642539
🇺🇸 US 🇨🇦 CA
2-4PINK
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GM GENUINE Fits: 4.2L L6 8642273
🇺🇸 US 🇨🇦 CA
2-4ORANGE
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This table covers the Servo Piston springs. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.

Shift Cable

Brand Part Number Markets Notes Buy
ATP Popular Fits: 4.2L L6 Y1318
🇺🇸 US
Length: 74.25"
View on
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GM GENUINE Popular Fits: 4.2L L6 15785087
🇺🇸 US 🇨🇦 CA
4 Speed
View on
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DORMAN Fits: 4.2L L6 905612
🇺🇸 US
View on
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PIONEER Fits: 4.2L L6 CA1225
🇺🇸 US
Length: 74.25"
View on
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SHEE-MAR Fits: 4.2L L6 SM2088
🇺🇸 US
Length: 74.25"
View on
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SKP Fits: 4.2L L6 SKY1318
🇺🇸 US
View on
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This table covers the Shift cables. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early.

Shift Improvement Kit

Daily Driver

Brand Part Number Markets Notes Buy
TRANSGO Popular Fits: 4.2L L6 SK4L60E
🇺🇸 US
Shift KitFor 4L60E, 4L65E, 4L70E, 4L75E Transmissions
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PIONEER Fits: 4.2L L6 765022
🇺🇸 US
View on
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SONNAX Fits: 4.2L L6 77754TL
🇺🇸 US
Tool Kit for 7775409K, 3420016K, SC4L80E and SC4L60E
View on
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Heavy Duty

Brand Part Number Markets Notes Buy
TRANSGO Popular Fits: 4.2L L6 4L60EHD2
🇺🇸 US
Reprogramming KitWith Gear Command
Fitment notes — TRANSGO 4L60EHD2
Reprogramming KitWith Gear CommandFor 4L60E, 4L65E, 4L70E, 4L75E Transmissions
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ATP Fits: 4.2L L6 SK3
🇺🇸 US
Contains Heavy Duty Upgraded (from OE) SpringsMay Contain Spacer Plates, Spool Valves & Gaskets Depending on Revision of OE
Fitment notes — ATP SK3
Contains Heavy Duty Upgraded (from OE) SpringsMay Contain Spacer Plates, Spool Valves & Gaskets Depending on Revision of OE
Improver Kit
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High Performance

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 HP4L60E01
🇺🇸 US
Performance Pack
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TRANSGO Fits: 4.2L L6 4L60EPRO
🇺🇸 US
Reprogramming KitWith Gear Command
Fitment notes — TRANSGO 4L60EPRO
Reprogramming KitWith Gear CommandFor 4L60E, 4L65E, 4L70E, 4L75E Transmissions
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This table covers the Shift Improvement kits.

Shift Interlock Solenoid

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 88967140
🇺🇸 US 🇨🇦 CA
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This table covers the Shift Interlock solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.

Shift Shaft Seal

Brand Part Number Markets Notes Buy
ACDELCO Fits: 4.2L L6 8792S
🇺🇸 US 🇨🇦 CA
Gold
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SCHAEFFLER Fits: 4.2L L6 SS2114
🇺🇸 US
4.75 mm WidthNitrile
Fitment notes — SCHAEFFLER SS2114
4.75 mm WidthNitrile12.7 mm Shaft Diameter
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TIMKEN Fits: 4.2L L6 710545
🇺🇸 US
View on
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This table covers the seals at the Shift Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Shift Solenoid

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 4.2L L6 24230298
🇺🇸 US 🇨🇦 CA
Includes SealMounting Bracket Included: No
Fitment notes — GM GENUINE 24230298
Includes SealMounting Bracket Included: No
Fits:
1-2, 3-4or 2-3
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ROSTRA Popular Fits: 4.2L L6 520251
🇺🇸 US
3-2 Downshift on/off solenoid
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ATP Fits: 4.2L L6 CE15
🇺🇸 US
View on
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GM GENUINE Fits: 4.2L L6 24212327
🇺🇸 US 🇨🇦 CA
3-2
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PA CARGO Fits: 4.2L L6 77945
🇺🇸 US
General Motors trans.Trans. code 4L60-E
View on
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PA CARGO Fits: 4.2L L6 K77929U
🇺🇸 US
General Motors trans.Trans. code 4L60-E
View on
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PA CARGO Fits: 4.2L L6 77926
🇺🇸 US
General Motors trans.Trans. code 4L60-E
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ROSTRA Fits: 4.2L L6 520348
🇺🇸 US
Shift A Solenoid On/Off
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This table covers the Shift solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.

Shift Valve

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 7775441
🇺🇸 US
RemanHeavy Duty 2-3 Shift Valve
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This table covers the Shift valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

Sprag

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 19432709
🇺🇸 US 🇨🇦 CA
ForwardGROOVED
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GM GENUINE Fits: 4.2L L6 19432708
🇺🇸 US 🇨🇦 CA
ForwardGROOVED
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This table covers the one-way sprag clutches in the transmission.

Stator Support Shaft Bushing

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 77002BT01
🇺🇸 US
Rear Stator Support Bushing
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This table covers the Stator Support Shaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Sun Gear

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 19431536
🇺🇸 US 🇨🇦 CA
INPUT
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This table covers the Sun gears.

Sun Gear Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8642162
🇺🇸 US 🇨🇦 CA
INPUT
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This table covers the Sun Gear bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Sun Gear Bushing

Brand Part Number Markets Notes Buy
DURA-BOND Fits: 4.2L L6 02776
🇺🇸 US
Input Sun Gear (Front & Rear)
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DURA-BOND Fits: 4.2L L6 GMT33A
🇺🇸 US
Rear Sun Gear (Wide)
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DURA-BOND Fits: 4.2L L6 GMT33
🇺🇸 US
Rear Sun Gear
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PIONEER Fits: 4.2L L6 755053
🇺🇸 US
Reaction Sun GearRear
Fitment notes — PIONEER 755053
Reaction Sun GearRear0.375" Wide
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This table covers the Sun Gear bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Sun Gear Shell

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24229604
🇺🇸 US 🇨🇦 CA
HEAT TREATED
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GM GENUINE Fits: 4.2L L6 19258702
🇺🇸 US 🇨🇦 CA
Induction Hardened
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SONNAX Fits: 4.2L L6 7774902K
🇺🇸 US
Smart Shell® Heavy Duty Reaction Shell Kit
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This table covers the shells that carry the sun gear.

Torque Converter

Brand Part Number Markets Notes Buy
TC REMANUFACTURING Fits: 4.2L L6 B85VJCX
🇺🇸 US
Converter Codes: 24215557, 24224075, 24228392, 24228708, 24238578, 24240603, JCXB, VJCK, VJCX11.00" Bolt Circle
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This table covers the Torque converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering.

Torque Converter / Bell Housing Components

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24246172
🇺🇸 US 🇨🇦 CA
Mortorx Spiral DriveM10X1.2X45
Fitment notes — GM GENUINE 24246172
Mortorx Spiral DriveM10X1.2X45Torque Converter Housing Bolt
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This table covers the hardware around the torque converter and bellhousing.

Torque Converter Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 11589040
🇺🇸 US 🇨🇦 CA
M10X1.5X22
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This table covers the Torque Converter bolts.

Torque Converter Clutch Solenoid

Brand Part Number Markets Notes Buy
ATP Popular Fits: 4.2L L6 CE14
🇺🇸 US
Lock-Up - 2-3 Shift
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PA CARGO Popular Fits: 4.2L L6 77942
🇺🇸 US
General Motors trans.Trans. code 4L60-E
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ATP Fits: 4.2L L6 CE2
🇺🇸 US
A & B Shift - Lock-Up, Not Pulse-Width-Modulated - Shift 1-2, 3-41-2 Required
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ATP Fits: 4.2L L6 CE1
🇺🇸 US
Includes: (2) Screw Nuts, (2) Lock Nuts
Fitment notes — ATP CE1
Includes: (2) Screw Nuts, (2) Lock Nuts
with Internal Wire Harness and with lock up Solenoid
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ATP Fits: 4.2L L6 JE8
🇺🇸 US
Lock-Up, TCC/PWM - 3-2 Shift1- Round Black Connector
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PIONEER Fits: 4.2L L6 771023
🇺🇸 US
A & B ShiftLock-Up, Not Pulse-Width-Modulated
Fitment notes — PIONEER 771023
A & B ShiftLock-Up, Not Pulse-Width-ModulatedShift 1-2, 3-4
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PIONEER Fits: 4.2L L6 771059
🇺🇸 US
Lock-up2-3 shift
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PIONEER Fits: 4.2L L6 771003
🇺🇸 US
Includes (2) Screw Nuts, (2) Lock Nuts
Fitment notes — PIONEER 771003
Includes (2) Screw Nuts, (2) Lock Nuts
with Internal Wire Harness and with Lock-up solenoidLength: 3.25"
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PIONEER Fits: 4.2L L6 771060
🇺🇸 US
Lock-Up, TCC/PWM3-2 Shift
Fitment notes — PIONEER 771060
Lock-Up, TCC/PWM3-2 Shift1Round Black Connector
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ROSTRA Fits: 4.2L L6 520322
🇺🇸 US
TCC Anti-Bleed Solenoid with Quick Link Connectors
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This table covers the Torque Converter Clutch solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.

Torque Converter Clutch Valve

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24232106
🇺🇸 US 🇨🇦 CA
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TRANSGO Fits: 4.2L L6 4L6ISO3
🇺🇸 US
TCC Lock-up Isolator Valves (Oversized)
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This table covers the Torque Converter Clutch valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

Torque Converter Clutch Valve Stop

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 8634705
🇺🇸 US 🇨🇦 CA
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This table covers the Torque Converter Clutch Valve stops.

Torque Converter Hardware

Brand Part Number Markets Notes Buy
DORMAN Fits: 4.2L L6 14099
🇺🇸 US
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This table covers the fasteners that mount the torque converter.

Torque Converter Housing Plug

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24205899
🇺🇸 US 🇨🇦 CA
28mm with 3 TangsSmall Cover
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This table covers the Torque Converter Housing plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.

Torque Converter Pulse Width Modulation (PWM) Solenoid

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24227792
🇺🇸 US 🇨🇦 CA
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This table covers the Torque Converter Pulse Width Modulation (PWM) solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.

Torque Converter Repair Sleeve

Brand Part Number Markets Notes Buy
SCHAEFFLER Fits: 4.2L L6 SR3496
🇺🇸 US
with 1.750 In Shaft
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This table covers the wear sleeves used to restore a Torque Converter seal surface.

Torque Converter Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24202535
🇺🇸 US 🇨🇦 CA
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TIMKEN Fits: 4.2L L6 4950
🇺🇸 US
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TRANSTEC Fits: 4.2L L6 81000837
🇺🇸 US 🇨🇦 CA
Housing Seal
Fitment notes — TRANSTEC 81000837
Housing Seal
LS4L60E, 4L65E, 4L70E4 Speed
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This table covers the seals at the Torque Converter Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Transmission Fluid

Dexron

Brand Part Number Markets Notes Buy
MOBIL Fits: 4.2L L6 123130
🇺🇸 US
ATF D/M1 Quart
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Multi-Vehicle

Brand Part Number Markets Notes Buy
MOBIL Popular Fits: 4.2L L6 126505
🇺🇸 US
Multi-Vehicle ATF
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VALVOLINE Popular Fits: 4.2L L6 VV3246
🇺🇸 US
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart
Fitment notes — VALVOLINE VV3246
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 QuartDEXRON VI, MERCON LV, DEX/MERC
Product Not Applicable For California
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ATP Fits: 4.2L L6 AT216
🇺🇸 US
Synthetic Multi-Vehicle Automatic Transmission Fluid1 Quart
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LUBEGARD Fits: 4.2L L6 69032
🇺🇸 US
1 QuartComplete Full Synthetic ATF Fluid
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MOBIL Fits: 4.2L L6 112980
🇺🇸 US
Synthetic ATF
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VALVOLINE Fits: 4.2L L6 773775
🇺🇸 US
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Fitment notes — VALVOLINE 773775
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Product Not Applicable For California
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VALVOLINE Fits: 4.2L L6 881051
🇺🇸 US
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Fitment notes — VALVOLINE 881051
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Product Not Applicable For California
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ZF Fluid

Brand Part Number Markets Notes Buy
ZF Fits: 4.2L L6 5961308623
🇺🇸 US
ZF Lifeguard Fluid 6.1 ATFincludes 1 L Bottle
Fitment notes — ZF 5961308623
ZF Lifeguard Fluid 6.1 ATFincludes 1 L Bottle
General Motors trans.
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This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.

Transmission Fluid Additive

Brand Part Number Markets Notes Buy
LUBEGARD Popular Fits: 4.2L L6 19610
🇺🇸 US
Instant Shudder Fixx2 oz
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LUBEGARD Popular Fits: 4.2L L6 60902
🇺🇸 US
Automatic Transmission Fluid Protectant10 oz
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LUBEGARD Fits: 4.2L L6 19689
🇺🇸 US
Instant Shudder Fixx2 oz
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LUBEGARD Fits: 4.2L L6 63010
🇺🇸 US
Platinum Universal ATF Protectant10 oz
Fitment notes — LUBEGARD 63010
Platinum Universal ATF Protectant10 oz
Use with OEM Recommended ATF or as OEM fluid Alternative.
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LUBEGARD Fits: 4.2L L6 63016
🇺🇸 US
Platinum Universal ATF Protectant15 oz
Fitment notes — LUBEGARD 63016
Platinum Universal ATF Protectant15 oz
Use with OEM Recommended ATF or as OEM fluid Alternative.
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LUBEGARD Fits: 4.2L L6 63032
🇺🇸 US
Platinum Universal ATF Protectant32 oz
Fitment notes — LUBEGARD 63032
Platinum Universal ATF Protectant32 oz
Use with OEM Recommended ATF or as OEM fluid Alternative.
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This table covers the conditioners and additives used with this transmission fluid.

Transmission Mount

Economy

Brand Part Number Markets Notes Buy
AUTO EXTRA Fits: 4.2L L6 3027
🇺🇸 US 🇨🇦 CA
RearAuto Trans Mount
Fitment notes — AUTO EXTRA 3027
RearAuto Trans MountPart Group:3021, 3027Diagram-3027L01
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SKP Fits: 4.2L L6 SKM3027
🇺🇸 US
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ULTRA-POWER Fits: 4.2L L6 3027
🇺🇸 US 🇨🇦 CA
RearAUTO TRANS MOUNT
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Standard Replacement

Brand Part Number Markets Notes Buy
ANCHOR Popular Fits: 4.2L L6 3027
🇺🇸 US
Rear
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DEA / MARMON RIDE CONTROL Popular Fits: 4.2L L6 A3027
🇺🇸 US
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PIONEER Fits: 4.2L L6 623027
🇺🇸 US
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WESTAR Fits: 4.2L L6 EM3027
🇺🇸 US
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This table covers the mounts that hold the transmission to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.

Turbine Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24212987
🇺🇸 US 🇨🇦 CA
Color: Red
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This table covers the seals at the Turbine Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Valve Body

Brand Part Number Markets Notes Buy
PA CARGO Fits: 4.2L L6 GM4643
🇺🇸 US 🇨🇦 CA
Reman.
Fitment notes — PA CARGO GM4643
Reman.
Trans Code : 4L60E4 SpeedPWM5 SOLENOIDSUPDATED EPC CONNECTOR
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SONNAX Fits: 4.2L L6 GM051
🇺🇸 US
Reman
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This table covers the valve bodies that route hydraulic pressure inside the transmission.

Valve Body Gasket

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24221350
🇺🇸 US 🇨🇦 CA
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PIONEER Fits: 4.2L L6 749364
🇺🇸 US
upper & lower
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PIONEER Fits: 4.2L L6 749365
🇺🇸 US
upper & lower
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This table covers the gaskets that seal the Valve Body. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Valve Body Separator Plate

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 4.2L L6 24241782
🇺🇸 US 🇨🇦 CA
4 Speed
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TRANSGO Fits: 4.2L L6 46PLT96
🇺🇸 US
General Motors trans.
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This table covers the Valve Body Separator plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.

Valve Body Vacuum Tester

Brand Part Number Markets Notes Buy
SONNAX Fits: 4.2L L6 77754VTP
🇺🇸 US
Vacuum Test Plate KitFor GM 4L60-E, 4L65-E and 4L70-E Units
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This table covers the testers used to diagnose a valve body.

Buying Automatic Transmission Parts for a 2005 Isuzu Ascender

On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.

  • Match the engine first. Every automatic transmission part here is engine-specific; each row shows which engine(s) it fits.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Filter and Components .

Frequently Asked Questions

How many automatic transmission parts fit the 2005 Isuzu Ascender?

Our catalog currently lists 375 automatic transmission parts for the 2005 Isuzu Ascender across 115 subcategories and 45 brands, covering both the 4.2L L6 and the 5.3L V8. Each part is matched to the engine(s) it fits.

Do automatic transmission parts differ between 2005 Isuzu Ascender engines?

Yes. Every automatic transmission part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of automatic transmission problems on a 2005 Isuzu Ascender?

Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2005 Isuzu Ascender was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2005 Isuzu Ascender?

First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2005 Isuzu Ascender

Automatic Transmission Parts for Other Isuzu Ascender Years

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