The 2006 Isuzu NPR has 81 automatic transmission parts with verified fitment on this page — 37 part types and 20 brands, covering both the 5.2L L4 DIESEL Turbocharged and the 6.0L V8. Each part includes a manufacturer part number and application notes.
The automatic transmission on the 2006 Isuzu NPR covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. The largest groups are Rebuild Kit (8 parts), Transmission Fluid Additive (6 parts) and Filter (5 parts). The other 34 part types cover the remaining 62 parts.
The 2006 Isuzu NPR was sold with both the 5.2L L4 DIESEL Turbocharged and the 6.0L V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
20 brands supply automatic transmission parts for the 2006 Isuzu NPR, led by DURA-BOND (20 parts), TRANSGO (10 parts) and PA CARGO (8 parts), plus 17 more brands. Quality grades include Standard Replacement, Banner Kit and Overhaul Kit.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2006 Isuzu NPR. 6 parts have it, including WIX 58608 (Filter) and DURA-BOND 34001CSTG (Fluid Pump Bushing). Each part number opens a page with every vehicle that part fits.
Actuator Feed Limit Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 6.0L V8 | 48ACTVL6 | 🇺🇸 US 🇨🇦 CA | Actuator Feed Limit Valve Boring KitWithout Tools | View on Amazon |
| TRANSGO Fits: 6.0L V8 | 48ACTTL | 🇺🇸 US 🇨🇦 CA | Actuator Feed Limit Valve Boring KitWith Tools | View on Amazon |
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.
TRANSGO supplies both parts for the 2006 Isuzu NPR.
Listed part numbers: TRANSGO 48ACTVL6 and TRANSGO 48ACTTL.
Boost Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 6.0L V8 | 4L80ELB1 | 🇺🇸 US 🇨🇦 CA | NPR Base Model | View on Amazon |
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.
This group shows a single part: SONNAX 4L80ELB1.
Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | GMT42 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EOverrun Drum (Front) | View on Amazon |
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.
One part is listed for the 2006 Isuzu NPR — DURA-BOND GMT42.
Bushing Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | TK4A | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-E | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | TK4AEK | 🇺🇸 US 🇨🇦 CA | Essentials Kit | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | TK4AHP | 🇺🇸 US 🇨🇦 CA | High Performance Kit | View on Amazon |
This table covers the Bushing kits.
DURA-BOND supplies the 3 Bushing Kit parts for the 2006 Isuzu NPR.
This group includes DURA-BOND TK4A, DURA-BOND TK4AEK and DURA-BOND TK4AHP.
Case Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | GMT44 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-ECase | View on Amazon |
| SONNAX Fits: 6.0L V8 | 34006SPB | 🇺🇸 US 🇨🇦 CA | Heavy Duty Case Bushing Kit | View on Amazon |
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.
2 Case Bushing parts are listed for the 2006 Isuzu NPR, from DURA-BOND and SONNAX.
Listed part numbers: DURA-BOND GMT44 and SONNAX 34006SPB.
Center Support Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | 03118 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-ECenter Support 1997-Up | View on Amazon |
This table covers the Center Support 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.
One part is listed for the 2006 Isuzu NPR — DURA-BOND 03118.
Clutch Hub
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 6.0L V8 | 3432202K | 🇺🇸 US 🇨🇦 CA | Extreme Duty Forward Clutch Hub Kit | View on Amazon |
This table covers the Clutch hubs.
One part is listed for the 2006 Isuzu NPR — SONNAX 3432202K.
Conductor Plate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.0L V8 | 550031 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
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.
This group shows a single part: ROSTRA 550031.
Extension Housing Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | 34005F | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EExtension Housing | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | 34066EXBR | 🇺🇸 US 🇨🇦 CA | Bronze | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | GMT45 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EExtension Housing 2004-Up | View on Amazon |
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.
DURA-BOND supplies the 3 Extension Housing Bushing parts for the 2006 Isuzu NPR.
Listed part numbers: DURA-BOND 34005F, DURA-BOND 34066EXBR and DURA-BOND GMT45.
Extension Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Fits: 6.0L V8 | 2457 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
This group shows a single part: TIMKEN 2457.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 6.0L V8 | PT1263 | 🇺🇸 US 🇨🇦 CA | StandardSpin-On | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Popular Fits: 6.0L V8 | 58608 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HASTINGS / BALDWIN Fits: 6.0L V8 | LF517 | 🇺🇸 US | Spin-On | View on Amazon |
| HASTINGS / BALDWIN Fits: 6.0L V8 | TF91 | 🇺🇸 US 🇨🇦 CA | NPR Base Model | View on Amazon |
| HASTINGS / BALDWIN Fits: 6.0L V8 | TF144 | 🇺🇸 US 🇨🇦 CA | NPR Base ModelPan-Type | View on Amazon |
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.
5 Filter parts are listed for the 2006 Isuzu NPR, from HASTINGS / BALDWIN, VARIOUS MFR and WIX. WIX 58608 carries the "Popular" badge.
In the Economy grade, VARIOUS MFR supplies 1 part: the catalog's value-priced group. A representative part number is VARIOUS MFR PT1263.
The Standard Replacement section lists 4 options from HASTINGS / BALDWIN and WIX — built to original-equipment specification. WIX 58608 is listed in this group.
Part numbers include WIX 58608, VARIOUS MFR PT1263 and HASTINGS / BALDWIN LF517, among others listed above.
Fluid Cooler Line / Hose Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: 6.0L V8 | 53024 | 🇺🇸 US 🇨🇦 CA | Transmission Line Fitting KitUse On Vehicles with Snap-In Transmission Line Fitting | View on Amazon |
| HAYDEN Fits: 6.0L V8 | 397 | 🇺🇸 US 🇨🇦 CA | Transmission Line Fitting KitUse On Vehicles with Snap-In Transmission Line Fitting | View on Amazon |
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.
2 Fluid Cooler Line / Hose Connector parts for the 2006 Isuzu NPR come from 2 brands — FOUR SEASONS and HAYDEN.
This group includes FOUR SEASONS 53024 and HAYDEN 397.
Fluid Cooler Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HAYDEN Fits: 6.0L V8 | 238 | 🇺🇸 US 🇨🇦 CA | Mounting KitRubber Block Mounting Kit for 1-1/2" Thick Cooler | View on Amazon |
| HAYDEN Fits: 6.0L V8 | 153 | 🇺🇸 US 🇨🇦 CA | Mounting KitMetal Mounting Bracket kit for 1-1/2" thick cooler | View on Amazon |
This table covers the Fluid Cooler mounts. 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.
2 Fluid Cooler Mount parts for the 2006 Isuzu NPR come from HAYDEN.
Part numbers include HAYDEN 238 and HAYDEN 153.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 6.0L V8 | SK265810 | 🇺🇸 US 🇨🇦 CA | with Auto Trans | View on Amazon |
| SPECTRA PREMIUM Fits: 6.0L V8 | TP0810 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
2 Fluid Pan parts for the 2006 Isuzu NPR come from 2 brands — SKP and SPECTRA PREMIUM.
This group includes SKP SK265810 and SPECTRA PREMIUM TP0810.
Fluid Pan Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.0L V8 | 65416 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-E | View on Amazon |
This table covers the Fluid Pan drain plugs.
This group shows a single part: DORMAN 65416.
Fluid Pump Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Popular Fits: 6.0L V8 | 34001CSTG | 🇺🇸 US 🇨🇦 CA | Dry Film Lubricated | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | 34001CT | 🇺🇸 US 🇨🇦 CA | Coated | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | 34001C | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EPump Body (Wide) 1997-Up | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | 34001CBR | 🇺🇸 US 🇨🇦 CA | Bronze | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | 34001CST | 🇺🇸 US 🇨🇦 CA | Coated | View on Amazon |
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.
DURA-BOND supplies the 5 Fluid Pump Bushing parts for the 2006 Isuzu NPR. DURA-BOND 34001CSTG carries the "Popular" badge.
Listed part numbers: DURA-BOND 34001CSTG, DURA-BOND 34001CT and DURA-BOND 34001C, plus the other parts above.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: 6.0L V8 | 714598 | 🇺🇸 US 🇨🇦 CA | Front4 speed trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 6.0L V8 | WS714598 | 🇺🇸 US 🇨🇦 CA | Front4 speed trans. | View on Amazon |
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.
2 Fluid Pump Seal parts for the 2006 Isuzu NPR come from 2 brands — NATIONAL and WJB / INMOTION PARTS.
Part numbers include NATIONAL 714598 and WJB / INMOTION PARTS WS714598.
Governor / Modulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 6.0L V8 | 48MOD | 🇺🇸 US 🇨🇦 CA | Vacuum Modulator Kit | View on Amazon |
This table covers the governors and modulators that control transmission shift pressure.
One part is listed for the 2006 Isuzu NPR — TRANSGO 48MOD.
Main Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 6.0L V8 | 3467205 | 🇺🇸 US 🇨🇦 CA | NPR Base ModelCan be used to replace late 4L80 E and 4L85 E solid shafts, however, check clearance between front of main shaft and rear of input shaft. It may be necessary to remove approximately .060 from front of main shaft | View on Amazon |
This table covers the Main shafts.
This group shows a single part: SONNAX 3467205.
Output Shaft Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | 8624988 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EOutput Shaft (Narrow) | View on Amazon |
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.
This group shows a single part: DURA-BOND 8624988.
Pressure Control (EPC) Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.0L V8 | 520478 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EEPC PWM Force Motor Silver Can | View on Amazon |
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.
One part is listed for the 2006 Isuzu NPR — ROSTRA 520478.
Pressure Switch Manifold
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.0L V8 | 501000 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-E | View on Amazon |
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.
This group shows a single part: ROSTRA 501000.
Rebuild Kit
Banner Kit (Overhaul Kit + Friction Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: 6.0L V8 | DK3400ES | 🇺🇸 US 🇨🇦 CA | Banner Kit | View on Amazon |
| PA CARGO Fits: 6.0L V8 | DK3400GS | 🇺🇸 US 🇨🇦 CA | Banner Kit | View on Amazon |
| PA CARGO Fits: 6.0L V8 | DK9400CS | 🇺🇸 US 🇨🇦 CA | Banner Kit | View on Amazon |
Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Popular Fits: 6.0L V8 | DK3400G | 🇺🇸 US 🇨🇦 CA | Master Kit | View on Amazon |
| PA CARGO Fits: 6.0L V8 | DK3400E | 🇺🇸 US 🇨🇦 CA | Master Kit | View on Amazon |
Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Popular Fits: 6.0L V8 | K34900G | 🇺🇸 US 🇨🇦 CA | Overhaul Kit | View on Amazon |
| PA CARGO Fits: 6.0L V8 | K34900E | 🇺🇸 US 🇨🇦 CA | Overhaul Kit | View on Amazon |
| PA CARGO Fits: 6.0L V8 | K94900C | 🇺🇸 US 🇨🇦 CA | Overhaul Kit | View on Amazon |
This table covers the rebuild kits for this assembly.
8 Rebuild Kit parts for the 2006 Isuzu NPR come from PA CARGO. The "Popular" part is PA CARGO DK3400G.
The Banner Kit (Overhaul Kit + Friction Clutch Plates) section lists 3 options from PA CARGO — grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. PA CARGO DK3400ES is listed in this group.
In the Master Kit (Overhaul Kit + Friction & Steel Clutch Plates) grade, PA CARGO supplies 2 parts: grouped under the catalog's "Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO DK3400G.
The Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) section lists 3 options from PA CARGO — grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. PA CARGO K34900G is listed in this group.
This group includes PA CARGO DK3400G, PA CARGO DK3400ES and PA CARGO DK3400GS and the remaining parts above.
Sealing Rings
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 6.0L V8 | 4L80EHTRK | 🇺🇸 US 🇨🇦 CA | High Temperature Sealing Ring Kit | View on Amazon |
This table covers the sealing rings inside this assembly.
One part is listed for the 2006 Isuzu NPR — TRANSGO 4L80EHTRK.
Shift Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 6.0L V8 | Y1392 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-ELength: 28.50" | View on Amazon |
| DORMAN Fits: 6.0L V8 | 9247017 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-E | View on Amazon |
| PIONEER Fits: 6.0L V8 | CA1327 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-ELength: 28.50" | View on Amazon |
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.
3 Shift Cable parts for the 2006 Isuzu NPR come from 3 brands — ATP, DORMAN and PIONEER.
This group includes ATP Y1392, DORMAN 9247017 and PIONEER CA1327.
Shift Improvement Kit
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 6.0L V8 | SK4L80E | 🇺🇸 US 🇨🇦 CA | Shift KitFor 4L80E, 4L85E Transmissions | View on Amazon |
High Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 6.0L V8 | 4L80EHD2 | 🇺🇸 US 🇨🇦 CA | Reprogramming KitFor 4L80E, 4L85E Transmissions | View on Amazon |
| TRANSGO Fits: 6.0L V8 | 4L80E3 | 🇺🇸 US 🇨🇦 CA | Reprogramming KitWith Manual Shift Control | View on Amazon |
This table covers the Shift Improvement kits.
TRANSGO supplies the 3 Shift Improvement Kit parts for the 2006 Isuzu NPR.
The Daily Driver section lists 1 option from TRANSGO — grouped for everyday commuting duty. TRANSGO SK4L80E is listed in this group.
In the High Performance grade, TRANSGO supplies 2 parts: engineered beyond original-equipment specification. A representative part number is TRANSGO 4L80EHD2.
This group includes TRANSGO SK4L80E, TRANSGO 4L80EHD2 and TRANSGO 4L80E3.
Shift Solenoid
Single Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.0L V8 | 520356 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EShift A Solenoid On/Off | View on Amazon |
Solenoid Pack / Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 6.0L V8 | RE70 | 🇺🇸 US 🇨🇦 CA | AW450-43LE (RNJ) Trans.4 Solenoid Kit | View on Amazon |
| PIONEER Fits: 6.0L V8 | 772454 | 🇺🇸 US 🇨🇦 CA | AW450-43LE (RNJ) Trans.4 Solenoid Kit | View on Amazon |
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.
3 Shift Solenoid parts for the 2006 Isuzu NPR come from 3 brands — ROSTRA, ATP and PIONEER.
In the Single Solenoid grade, ROSTRA supplies 1 part: grouped under the catalog's "Single Solenoid" designation — the notes column spells out what sets them apart. A representative part number is ROSTRA 520356.
In the Solenoid Pack / Kit grade, ATP and PIONEER supply 2 parts: grouped under the catalog's "Solenoid Pack / Kit" designation — the notes column spells out what sets them apart. A representative part number is ATP RE70.
Part numbers include ROSTRA 520356, ATP RE70 and PIONEER 772454.
Stator Support Shaft Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | GMT41 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EStator Support (Front) | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | 8661614 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EStator Support (Rear) | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | GMT41A | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-EStator Support (Front) (Extra Wide) | View on Amazon |
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.
DURA-BOND supplies the 3 Stator Support Shaft Bushing parts for the 2006 Isuzu NPR.
Listed part numbers: DURA-BOND GMT41, DURA-BOND 8661614 and DURA-BOND GMT41A.
Sun Gear Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 6.0L V8 | 03131BRS | 🇺🇸 US 🇨🇦 CA | BronzeSemi Finished | View on Amazon |
| DURA-BOND Fits: 6.0L V8 | 03131 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-ESun Gear Shaft (with Groove) 1997-up | View on Amazon |
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.
2 Sun Gear Bushing parts for the 2006 Isuzu NPR come from DURA-BOND.
Part numbers include DURA-BOND 03131BRS and DURA-BOND 03131.
Torque Converter Clutch Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.0L V8 | 520241 | 🇺🇸 US 🇨🇦 CA | Trans. code 4L80-ETCC/Pulse Width Modulation Solenoid | View on Amazon |
| ROSTRA Fits: 6.0L V8 | 529033 | 🇺🇸 US 🇨🇦 CA | Shift 1, Shift 2, Timing, and Lock-Up | View on Amazon |
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.
ROSTRA supplies both parts for the 2006 Isuzu NPR.
This group includes ROSTRA 520241 and ROSTRA 529033.
Torque Converter Clutch Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 6.0L V8 | 4L80ETCC | 🇺🇸 US 🇨🇦 CA | TCC Regulator Valve Assembly | View on Amazon |
| TRANSGO Fits: 6.0L V8 | 48CCV | 🇺🇸 US 🇨🇦 CA | TCC Conversion Valve | View on Amazon |
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.
2 Torque Converter Clutch Valve parts for the 2006 Isuzu NPR come from TRANSGO.
Listed part numbers: TRANSGO 4L80ETCC and TRANSGO 48CCV.
Torque Converter Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Fits: 6.0L V8 | 4598 | 🇺🇸 US 🇨🇦 CA | 4 speed trans.Trans. code 4L80-E | View on Amazon |
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.
This group shows a single part: TIMKEN 4598.
Transmission Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 6.0L V8 | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Fits: 6.0L V8 | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: 6.0L V8 | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
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.
VALVOLINE supplies the 3 Transmission Fluid parts for the 2006 Isuzu NPR.
Part numbers include VALVOLINE VV3246, VALVOLINE 773775 and VALVOLINE 881051.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: 6.0L V8 | 19610 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: 6.0L V8 | 60902 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 6.0L V8 | 19689 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: 6.0L V8 | 63010 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 6.0L V8 | 63016 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: 6.0L V8 | 63032 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
LUBEGARD supplies the 6 Transmission Fluid Additive parts for the 2006 Isuzu NPR. LUBEGARD 19610 carries the "Popular" badge.
This group includes LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689 and the remaining parts above.
Valve Body
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 6.0L V8 | GM029 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
| SONNAX Fits: 6.0L V8 | GM030 | 🇺🇸 US 🇨🇦 CA | Reman | View on Amazon |
This table covers the valve bodies that route hydraulic pressure inside the transmission.
SONNAX supplies both parts for the 2006 Isuzu NPR.
Part numbers include SONNAX GM029 and SONNAX GM030.
Valve Body Separator Plate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 6.0L V8 | 48PLT01 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
This group shows a single part: TRANSGO 48PLT01.
Valve Body Vacuum Tester
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 6.0L V8 | 34994VTP | 🇺🇸 US 🇨🇦 CA | Vacuum Test Plate KitFor GM 4L80-E and 4L85-E Units | View on Amazon |
This table covers the testers used to diagnose a valve body.
One part is listed for the 2006 Isuzu NPR — SONNAX 34994VTP.
Buying Automatic Transmission Parts for a 2006 Isuzu NPR
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: Rebuild Kit and Transmission Fluid Additive .
Frequently Asked Questions
How many automatic transmission parts fit the 2006 Isuzu NPR?
Our catalog currently lists 81 automatic transmission parts for the 2006 Isuzu NPR across 37 subcategories and 20 brands, covering both the 5.2L L4 DIESEL Turbocharged and the 6.0L V8. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2006 Isuzu NPR 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 2006 Isuzu NPR?
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 2006 Isuzu NPR 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 2006 Isuzu NPR?
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 2006 Isuzu NPR
Automatic Transmission Parts for Other Isuzu NPR Years
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