The 1999 Buick Regal has 275 automatic transmission parts with verified fitment on this page — 71 part types and 47 brands, covering both the 3.8L V6 and the 3.8L V6 Supercharged. Each part includes a manufacturer part number and application notes.
The automatic transmission on the 1999 Buick Regal covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. The largest groups are Transmission Fluid (28 parts), Shift Solenoid (18 parts) and Filter (17 parts). The other 68 part types cover the remaining 212 parts.
The 1999 Buick Regal was sold with both the 3.8L V6 and the 3.8L V6 Supercharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1999 Buick Regal automatic transmission parts are GM GENUINE (64 parts), PIONEER (36 parts) and ATP (25 parts), plus 44 more brands. Quality grades include Standard Replacement, Multi-Vehicle and Economy.
39 parts on this 1999 Buick Regal page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including PIONEER 767069 (Band) and PIONEER 755056 (Bushing). Click any part number to see every vehicle that part fits.
Accumulator Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24205584 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed Automatic trans. | View on Amazon |
This table covers the Accumulator covers.
One part is listed for the 1999 Buick Regal — GM GENUINE 24205584.
Accumulator Piston
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24206857 | 🇺🇸 US 🇨🇦 CA | 1-2-3Trans.Code 4T65-E-HD/MN7 | View on Amazon |
| TRANSGO Fits: 3.8L V6 Supercharged | 4T654ACM | 🇺🇸 US 🇨🇦 CA | 4th Accumulator Piston | View on Amazon |
| TRANSGO Fits: 3.8L V6 Supercharged | 4T65ACM | 🇺🇸 US 🇨🇦 CA | 1-2 & 2-3 Accumulator Piston | View on Amazon |
This table covers the pistons inside a transmission accumulator.
3 Accumulator Piston parts are listed for the 1999 Buick Regal, from TRANSGO and GM GENUINE.
Part numbers include GM GENUINE 24206857, TRANSGO 4T654ACM and TRANSGO 4T65ACM.
Accumulator Piston Pin
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24203979 | 🇺🇸 US 🇨🇦 CA | Fits 1-2Trans. code 4T65-E-HD/MN7 | View on Amazon |
This table covers the Accumulator Piston pins.
This group shows a single part: GM GENUINE 24203979.
Accumulator Piston Seal / Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 8644917 | 🇺🇸 US 🇨🇦 CA | 4thTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8678473 | 🇺🇸 US 🇨🇦 CA | Fits 1-2Trans.Code 4T65-E-HD/MN7 | View on Amazon |
This table covers the Accumulator Piston Seal sleeves.
GM GENUINE supplies both parts for the 1999 Buick Regal.
Listed part numbers: GM GENUINE 8644917 and GM GENUINE 8678473.
Actuator Feed Limit Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRANSGO Fits: 3.8L V6 Supercharged | 4T65AFL | 🇺🇸 US 🇨🇦 CA | Actuator Feed Limit Valve Repair Kit | 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.
This group shows a single part: TRANSGO 4T65AFL.
Band
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Popular Fits: 3.8L V6 Supercharged | 767069 | 🇺🇸 US 🇨🇦 CA | Low / ReverseTrans. code 4T65-E | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | CX45 | 🇺🇸 US 🇨🇦 CA | Low / ReverseTrans. code 4T65-E | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | TPB1030 | 🇺🇸 US 🇨🇦 CA | Forward | View on Amazon |
| PA CARGO Fits: 3.8L V6 Supercharged | 84701A | 🇺🇸 US 🇨🇦 CA | 4 Speed FWD 4T65E Transmission | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 767064 | 🇺🇸 US 🇨🇦 CA | CenterTrans. code 4T65-E | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 767068 | 🇺🇸 US 🇨🇦 CA | ForwardTrans. code 4T65-E | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 3.8L V6 Supercharged | 513843 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E1st, 2nd Coast | View on Amazon |
This table covers the apply bands inside the automatic transmission.
7 Band parts are listed for the 1999 Buick Regal, from PIONEER, ATP, PA CARGO and 1 other brand. PIONEER 767069 carries the "Popular" badge.
Part numbers include PIONEER 767069, ATP CX45 and ATP TPB1030, among others listed above.
Band Anchor Pin
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 8651798 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the Band Anchor pins.
One part is listed for the 1999 Buick Regal — GM GENUINE 8651798.
Boost Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 3.8L V6 Supercharged | 4T65ELB1 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | 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.
One part is listed for the 1999 Buick Regal — SONNAX 4T65ELB1.
Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Popular Fits: 3.8L V6 Supercharged | 755056 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EFinal drive internal gear | View on Amazon |
| PIONEER Popular Fits: 3.8L V6 Supercharged | 755090 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-ECase to Final Drive Internal Gear | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | JB65 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EPosition: Final Drive Internal Gear | View on Amazon |
| DURA-BOND Fits: 3.8L V6 Supercharged | 84061B | 🇺🇸 US 🇨🇦 CA | 2-1 Coast Drum (1996-Up) 4T60E/4T65E | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755055 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EDrive sprocket support | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755058 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EInput shaft | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755094 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EInput Shaft | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755060 | 🇺🇸 US 🇨🇦 CA | RearTrans. code 4T65-E | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755059 | 🇺🇸 US 🇨🇦 CA | FrontTrans. code 4T65-E | 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.
9 Bushing parts for the 1999 Buick Regal come from 3 brands — PIONEER, ATP and DURA-BOND. The "Popular" part is PIONEER 755056.
This group includes PIONEER 755056, PIONEER 755090 and ATP JB65 and the remaining parts above.
Bushing Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 3.8L V6 Supercharged | TK35 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PA CARGO Fits: 3.8L V6 Supercharged | K84901G | 🇺🇸 US 🇨🇦 CA | 4 Speed FWD 4T65E Transmission | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755170 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
This table covers the Bushing kits.
3 Bushing Kit parts for the 1999 Buick Regal come from 3 brands — DURA-BOND, PA CARGO and PIONEER.
This group includes DURA-BOND TK35, PA CARGO K84901G and PIONEER 755170.
Case Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24212897 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24206391 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the gaskets that seal the Case. 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.
GM GENUINE supplies both parts for the 1999 Buick Regal.
Part numbers include GM GENUINE 24212897 and GM GENUINE 24206391.
Clutch Apply Plate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 8682801 | 🇺🇸 US 🇨🇦 CA | InputTrans.Code 4T65-E-HD/MN7 | View on Amazon |
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.
One part is listed for the 1999 Buick Regal — GM GENUINE 8682801.
Clutch Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24236214 | 🇺🇸 US 🇨🇦 CA | InputTrans.Code 4T65-E-HD/MN7 | View on Amazon |
This table covers the Clutch housings.
This group shows a single part: GM GENUINE 24236214.
Clutch Housing Thrust Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24227685 | 🇺🇸 US 🇨🇦 CA | InputTrans.Code 4T65-E-HD/MN7 | View on Amazon |
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.
This group shows a single part: GM GENUINE 24227685.
Clutch Pack Piston
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24205378 | 🇺🇸 US 🇨🇦 CA | 3rdTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24208336 | 🇺🇸 US 🇨🇦 CA | 2ndTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 19368340 | 🇺🇸 US 🇨🇦 CA | InputTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| SONNAX Fits: 3.8L V6 Supercharged | 8496501K | 🇺🇸 US 🇨🇦 CA | 3rd Clutch Piston Kit | View on Amazon |
This table covers the pistons that apply a clutch pack.
4 Clutch Pack Piston parts are listed for the 1999 Buick Regal, from GM GENUINE and SONNAX.
Listed part numbers: GM GENUINE 24205378, GM GENUINE 24208336 and GM GENUINE 19368340, plus the other parts above.
Clutch Plate
Backing Plate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24204105 | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
Friction
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 Supercharged | 24281019 | 🇺🇸 US 🇨🇦 CA | Fiber | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 Supercharged | 24218248 | 🇺🇸 US 🇨🇦 CA | Fiber | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8683084 | 🇺🇸 US 🇨🇦 CA | InputTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24216288 | 🇺🇸 US 🇨🇦 CA | 3rdTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24216287 | 🇺🇸 US 🇨🇦 CA | 3rdTrans.Code 4T65-E-HD/MN7 | View on Amazon |
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.
GM GENUINE supplies the 6 Clutch Plate parts for the 1999 Buick Regal. GM GENUINE 24281019 carries the "Popular" badge.
The Backing Plate section lists 1 option from GM GENUINE — grouped under the catalog's "Backing Plate" designation — the notes column spells out what sets them apart. GM GENUINE 24204105 is listed in this group.
In the Friction grade, GM GENUINE supplies 5 parts: grouped under the catalog's "Friction" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 24281019.
Listed part numbers: GM GENUINE 24281019, GM GENUINE 24204105 and GM GENUINE 24218248, plus the other parts above.
Clutch Plate Pack
Friction Plate Pack
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Fits: 3.8L V6 Supercharged | RCP96084 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E OEM Standard | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 3.8L V6 Supercharged | RCPS26 | 🇺🇸 US 🇨🇦 CA | Stage-1 Performance Module | View on Amazon |
Steel Plate Pack
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| RAYBESTOS POWERTRAIN Fits: 3.8L V6 Supercharged | 000587 | 🇺🇸 US 🇨🇦 CA | Steel Module | View on Amazon |
This table covers the clutch-plate packs inside the transmission or transfer case.
3 Clutch Plate Pack parts for the 1999 Buick Regal come from RAYBESTOS POWERTRAIN.
In the Friction Plate Pack grade, RAYBESTOS POWERTRAIN supplies 2 parts: grouped under the catalog's "Friction Plate Pack" designation — the notes column spells out what sets them apart. A representative part number is RAYBESTOS POWERTRAIN RCP96084.
The Steel Plate Pack section lists 1 option from RAYBESTOS POWERTRAIN — grouped under the catalog's "Steel Plate Pack" designation — the notes column spells out what sets them apart. RAYBESTOS POWERTRAIN 000587 is listed in this group.
Part numbers include RAYBESTOS POWERTRAIN RCP96084, RAYBESTOS POWERTRAIN RCPS26 and RAYBESTOS POWERTRAIN 000587.
Clutch Seal Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24209498 | 🇺🇸 US 🇨🇦 CA | 2ndTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8656342 | 🇺🇸 US 🇨🇦 CA | InputTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24213410 | 🇺🇸 US 🇨🇦 CA | 2ndTrans.Code 4T65-E-HD/MN7 | View on Amazon |
This table covers the Clutch Seal rings.
3 Clutch Seal Ring parts for the 1999 Buick Regal come from GM GENUINE.
Listed part numbers: GM GENUINE 24209498, GM GENUINE 8656342 and GM GENUINE 24213410.
Detent Cable Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.8L V6 Supercharged | SO37 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EMulti Lip seal | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 760013 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EMulti Lip seal | View on Amazon |
This table covers the seals at the Detent Cable. 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 Detent Cable Seal parts for the 1999 Buick Regal come from 2 brands — ATP and PIONEER.
Listed part numbers: ATP SO37 and PIONEER 760013.
Dipstick / Fluid Filler Tube Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 1259475 | 🇺🇸 US 🇨🇦 CA | AT CASE | View on Amazon |
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.
One part is listed for the 1999 Buick Regal — GM GENUINE 1259475.
Drive Sprocket Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24214158 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the Drive Sprocket 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.
One part is listed for the 1999 Buick Regal — GM GENUINE 24214158.
Extension Housing Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 3.8L V6 Supercharged | GMT67 | 🇺🇸 US 🇨🇦 CA | Extension Housing 4T60E/4T65E | 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.
This group shows a single part: DURA-BOND GMT67.
Extension Housing Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 8651419 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
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.
One part is listed for the 1999 Buick Regal — GM GENUINE 8651419.
Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular Fits: 3.8L V6 Supercharged | TF161 | 🇺🇸 US 🇨🇦 CA | OE Replacement | View on Amazon |
| CHAMP / LUBER-FINER Fits: 3.8L V6 Supercharged | T217 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PA CARGO Fits: 3.8L V6 Supercharged | 84710E | 🇺🇸 US 🇨🇦 CA | 4 Speed FWD 4T65E Transmission | View on Amazon |
| VARIOUS MFR Fits: 3.8L V6 Supercharged | PT1201 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Popular Fits: 3.8L V6 Supercharged | B393 | 🇺🇸 US 🇨🇦 CA | Premium ReplacementIncludes Reusable Gasket | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 Supercharged | 24227477 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| WIX Popular Fits: 3.8L V6 Supercharged | 58837 | 🇺🇸 US 🇨🇦 CA | Class: A | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | B396 | 🇺🇸 US 🇨🇦 CA | Premium ReplacementDoes Not Include 3rd Hand Gasket | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | B161 | 🇺🇸 US 🇨🇦 CA | Premium Replacement | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | JX156 | 🇺🇸 US 🇨🇦 CA | In-Line Filter Kit | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | JX157 | 🇺🇸 US 🇨🇦 CA | In-Line Filter Kit | View on Amazon |
| FVP Fits: 3.8L V6 Supercharged | T8837 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HASTINGS / BALDWIN Fits: 3.8L V6 Supercharged | TF142 | 🇺🇸 US 🇨🇦 CA | Gasket Not Included | View on Amazon |
| HASTINGS / BALDWIN Fits: 3.8L V6 Supercharged | TF153 | 🇺🇸 US 🇨🇦 CA | with Gasket | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 746164 | 🇺🇸 US 🇨🇦 CA | Does Not Include Gasket | View on Amazon |
| RAYBESTOS POWERTRAIN Fits: 3.8L V6 Supercharged | 515142 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WIX Fits: 3.8L V6 Supercharged | 58918 | 🇺🇸 US 🇨🇦 CA | without Pan Gasket | 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.
17 Filter parts for the 1999 Buick Regal come from 10 brands — ATP, WIX, HASTINGS / BALDWIN and 7 other brands. The "Popular" part is ATP TF161.
The Economy section lists 4 options from ATP, CHAMP / LUBER-FINER, PA CARGO and 1 other brand — the catalog's value-priced group. ATP TF161 is listed in this group.
In the Standard Replacement grade, ATP, WIX, HASTINGS / BALDWIN and 4 other brands supply 13 parts: built to original-equipment specification. A representative part number is ATP B393.
Filter Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.8L V6 Supercharged | JO100 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8656613 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed Automatic trans. | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 760008 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
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.
3 Filter Seal parts are listed for the 1999 Buick Regal, from ATP, GM GENUINE and PIONEER.
Listed part numbers: ATP JO100, GM GENUINE 8656613 and PIONEER 760008.
Flexplate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.8L V6 Supercharged | Z609 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EOuter Diameter: 11.915" | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | FRA574 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EOuter Diameter: 11.915" | View on Amazon |
This table covers the flexplates that connect the crankshaft to the torque converter.
2 Flexplate parts are listed for the 1999 Buick Regal, from ATP and PIONEER.
Part numbers include ATP Z609 and PIONEER FRA574.
Fluid Cooler Line / Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 10409060 | 🇺🇸 US 🇨🇦 CA | Outlet | View on Amazon |
| SUNSONG Fits: 3.8L V6 Supercharged | 5801148 | 🇺🇸 US 🇨🇦 CA | LowerRadiator To Transmission | View on Amazon |
| SUNSONG Fits: 3.8L V6 Supercharged | 5801122 | 🇺🇸 US 🇨🇦 CA | Radiator to Transmission (Upper) | View on Amazon |
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.
3 Fluid Cooler Line / Hose parts for the 1999 Buick Regal come from 2 brands — SUNSONG and GM GENUINE.
This group includes GM GENUINE 10409060, SUNSONG 5801148 and SUNSONG 5801122.
Fluid Cooler Line / Hose Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 3.8L V6 Supercharged | 800619 | 🇺🇸 US 🇨🇦 CA | 9/16" x 18 ThreadRadiator Side | View on Amazon |
| HAYDEN Popular Fits: 3.8L V6 Supercharged | 397 | 🇺🇸 US 🇨🇦 CA | Transmission Line Fitting KitUse On Vehicles with Snap-In Transmission Line Fitting | View on Amazon |
| DORMAN Fits: 3.8L V6 Supercharged | 800754 | 🇺🇸 US 🇨🇦 CA | Transmission Line Connector | View on Amazon |
| DORMAN Fits: 3.8L V6 Supercharged | 800605 | 🇺🇸 US 🇨🇦 CA | Transmission Line Connector | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 Supercharged | 53009 | 🇺🇸 US 🇨🇦 CA | Transmission Line Fitting KitUse On Vehicles with 5/8"-18 Thread Inverted Flare Fittings | View on Amazon |
| FOUR SEASONS Fits: 3.8L V6 Supercharged | 53024 | 🇺🇸 US 🇨🇦 CA | Transmission Line Fitting KitUse On Vehicles with Snap-In Transmission Line Fitting | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8651654 | 🇺🇸 US 🇨🇦 CA | End Fitting | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 19130039 | 🇺🇸 US 🇨🇦 CA | End Fitting | View on Amazon |
| HAYDEN Fits: 3.8L V6 Supercharged | 390 | 🇺🇸 US 🇨🇦 CA | Transmission Line Fitting KitUse On Vehicles with 5/8"-18 Thread Inverted Flare Fittings | 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.
9 Fluid Cooler Line / Hose Connector parts are listed for the 1999 Buick Regal, from DORMAN, HAYDEN, FOUR SEASONS and 1 other brand. DORMAN 800619 carries the "Popular" badge.
Part numbers include DORMAN 800619, HAYDEN 397 and DORMAN 800754, among others listed above.
Fluid Cooler Line Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.8L V6 Supercharged | 14152 | 🇺🇸 US 🇨🇦 CA | 18 MM Diameter | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24205103 | 🇺🇸 US 🇨🇦 CA | 3/8, 17.4mm OD | View on Amazon |
This table covers the Fluid Cooler Line clips.
2 Fluid Cooler Line Clip parts for the 1999 Buick Regal come from 2 brands — DORMAN and GM GENUINE.
Part numbers include DORMAN 14152 and GM GENUINE 24205103.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 3.8L V6 Supercharged | SK265814 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | 103138 | 🇺🇸 US 🇨🇦 CA | with 6mm Bolt Holes | View on Amazon |
| DORMAN Fits: 3.8L V6 Supercharged | 265814 | 🇺🇸 US 🇨🇦 CA | OE FIX | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24206181 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
| SPECTRA PREMIUM Fits: 3.8L V6 Supercharged | TP0814 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
5 Fluid Pan parts are listed for the 1999 Buick Regal, from SKP, ATP, DORMAN and 2 other brands. SKP SK265814 carries the "Popular" badge.
This group includes SKP SK265814, ATP 103138 and DORMAN 265814 and the remaining parts above.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: 3.8L V6 Supercharged | TOS18717 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Popular Fits: 3.8L V6 Supercharged | 24206182 | 🇺🇸 US 🇨🇦 CA | 6mm pan bolt | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | JG108 | 🇺🇸 US 🇨🇦 CA | Replacement GasketAftermarket Style | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | JG143 | 🇺🇸 US 🇨🇦 CA | Reusable, 6mm bolt holes, 10mm headOE Style | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 Supercharged | W32865 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission Oil Pan GasketMolded Rubber | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 749017 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-ECork & Rubber | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 749527 | 🇺🇸 US 🇨🇦 CA | 8mm holes13mm heads | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 749522 | 🇺🇸 US 🇨🇦 CA | Reusable, 6mm bolt holes, 10mm headOE Style | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 Supercharged | 711497100 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E20 Bolt | View on Amazon |
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.
9 Fluid Pan Gasket parts for the 1999 Buick Regal come from 6 brands — PIONEER, ATP, FEL-PRO and 3 other brands. The "Popular" part is FEL-PRO TOS18717.
Part numbers include FEL-PRO TOS18717, GM GENUINE 24206182 and ATP JG108, among others listed above.
Fluid Pan Magnet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 29535617 | 🇺🇸 US 🇨🇦 CA | Length: 1.8 In | View on Amazon |
This table covers the Fluid Pan magnets.
One part is listed for the 1999 Buick Regal — GM GENUINE 29535617.
Fluid Pump Cover Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24210075 | 🇺🇸 US 🇨🇦 CA | Trans. Code 4T65-E-HD/MN74 Speed | View on Amazon |
This table covers the Fluid Pump Cover bolts.
This group shows a single part: GM GENUINE 24210075.
Fluid Pump Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Fits: 3.8L V6 Supercharged | 17849 | 🇺🇸 US 🇨🇦 CA | Front | 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.
One part is listed for the 1999 Buick Regal — SKF 17849.
Fluid Pump Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24209284 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the Fluid Pump shafts.
This group shows a single part: GM GENUINE 24209284.
Fluid Temperature Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 12129691 | 🇺🇸 US 🇨🇦 CA | Mates with Connector # 12085535 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 Supercharged | TX220 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Fluid temperature sensors. Typical signs include hard cold starts, a fan that never comes on, or a gauge that disagrees with the scan tool. A sensor that reads open or shorted is usually the part; an implausible-but-smooth reading can be wiring.
2 Fluid Temperature Sensor parts for the 1999 Buick Regal come from 2 brands — GM GENUINE and STANDARD MOTOR PRODUCTS.
Listed part numbers: GM GENUINE 12129691 and STANDARD MOTOR PRODUCTS TX220.
Governor / Modulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.8L V6 Supercharged | JX70 | 🇺🇸 US 🇨🇦 CA | Includes: (1) Hose | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 747017 | 🇺🇸 US 🇨🇦 CA | Includes (1) Hose | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 Supercharged | TM57 | 🇺🇸 US 🇨🇦 CA | Direct OE ReplacementBrass | View on Amazon |
This table covers the governors and modulators that control transmission shift pressure.
3 Governor / Modulator parts for the 1999 Buick Regal come from 3 brands — ATP, PIONEER and STANDARD MOTOR PRODUCTS.
This group includes ATP JX70, PIONEER 747017 and STANDARD MOTOR PRODUCTS TM57.
Manual Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 3.8L V6 Supercharged | 8792S | 🇺🇸 US 🇨🇦 CA | General Motors trans. | View on Amazon |
| BCA Fits: 3.8L V6 Supercharged | NS8792S | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8644709 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
| TIMKEN Fits: 3.8L V6 Supercharged | 8792S | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WJB / INMOTION PARTS Fits: 3.8L V6 Supercharged | WS8792S | 🇺🇸 US 🇨🇦 CA | General Motors trans. | View on Amazon |
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.
5 Manual Shaft Seal parts are listed for the 1999 Buick Regal, from NATIONAL, BCA, GM GENUINE and 2 other brands. NATIONAL 8792S carries the "Popular" badge.
Listed part numbers: NATIONAL 8792S, BCA NS8792S and GM GENUINE 8644709, plus the other parts above.
Output Shaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular Fits: 3.8L V6 Supercharged | 99139 | 🇺🇸 US 🇨🇦 CA | Fits LeftGeneral Motors trans.or Right | View on Amazon |
| BCA Fits: 3.8L V6 Supercharged | NS99139 | 🇺🇸 US 🇨🇦 CA | Fits Right | View on Amazon |
| SKF Fits: 3.8L V6 Supercharged | 99138 | 🇺🇸 US 🇨🇦 CA | Shaft Diameter: 1.374 In | View on Amazon |
| TIMKEN Fits: 3.8L V6 Supercharged | KWK99139 | 🇺🇸 US 🇨🇦 CA | Kwik-Sleeve | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 Supercharged | WS99139 | 🇺🇸 US 🇨🇦 CA | Fits LeftGeneral Motors trans.or Right | View on Amazon |
This table covers the wear sleeves used to restore a Output Shaft seal surface.
5 Output Shaft Repair Sleeve parts for the 1999 Buick Regal come from 5 brands — NATIONAL, BCA, SKF and 2 other brands. The "Popular" part is NATIONAL 99139.
This group includes NATIONAL 99139, BCA NS99139 and SKF 99138 and the remaining parts above.
Output Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 Supercharged | 3543 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 Supercharged | 24202835 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| NATIONAL Popular Fits: 3.8L V6 Supercharged | 100165 | 🇺🇸 US 🇨🇦 CA | LeftGeneral Motors trans. | View on Amazon |
| BCA Fits: 3.8L V6 Supercharged | NS3543 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| NATIONAL Fits: 3.8L V6 Supercharged | 3543 | 🇺🇸 US 🇨🇦 CA | RightGeneral Motors trans. | View on Amazon |
| SCHAEFFLER Fits: 3.8L V6 Supercharged | SS2418 | 🇺🇸 US 🇨🇦 CA | Left15.265 mm Width | View on Amazon |
| SCHAEFFLER Fits: 3.8L V6 Supercharged | SS2421 | 🇺🇸 US 🇨🇦 CA | Right14.681 mm Width | View on Amazon |
| SKF Fits: 3.8L V6 Supercharged | 13735 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| SKF Fits: 3.8L V6 Supercharged | 13750 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| TIMKEN Fits: 3.8L V6 Supercharged | 100165 | 🇺🇸 US 🇨🇦 CA | LeftYellow | View on Amazon |
| TIMKEN Fits: 3.8L V6 Supercharged | 3543 | 🇺🇸 US 🇨🇦 CA | RightGreen | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 Supercharged | WS100165 | 🇺🇸 US 🇨🇦 CA | Fits LeftYellow | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 Supercharged | WS3543 | 🇺🇸 US 🇨🇦 CA | RightGeneral Motors trans. | View on Amazon |
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.
13 Output Shaft Seal parts for the 1999 Buick Regal come from 8 brands — NATIONAL, SCHAEFFLER, SKF and 5 other brands. The "Popular" part is ACDELCO 3543.
Parking Pawl
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24237506 | 🇺🇸 US 🇨🇦 CA | Actuating Rod | View on Amazon |
This table covers the parking pawls that lock the transmission in Park.
This group shows a single part: GM GENUINE 24237506.
Pressure Control (EPC) Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 10478146 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
| PA CARGO Fits: 3.8L V6 Supercharged | 33946 | 🇺🇸 US 🇨🇦 CA | General Motors trans.Trans. code 4T65-E | View on Amazon |
| ROSTRA Fits: 3.8L V6 Supercharged | 520367 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EEPC Pulse Width Modulation Solenoid | 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.
3 Pressure Control (EPC) Solenoid parts for the 1999 Buick Regal come from 3 brands — GM GENUINE, PA CARGO and ROSTRA.
Listed part numbers: GM GENUINE 10478146, PA CARGO 33946 and ROSTRA 520367.
Pressure Switch Manifold
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Fits: 3.8L V6 Supercharged | 772012 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EManifold pressure | View on Amazon |
| ROSTRA Fits: 3.8L V6 Supercharged | 501018 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E1 Prong Type | View on Amazon |
| ROSTRA Fits: 3.8L V6 Supercharged | 501004 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 Supercharged | PSA104 | 🇺🇸 US 🇨🇦 CA | Transmission Pressure Switch Assembly | 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.
4 Pressure Switch Manifold parts are listed for the 1999 Buick Regal, from ROSTRA, PIONEER and STANDARD MOTOR PRODUCTS.
Part numbers include PIONEER 772012, ROSTRA 501018 and ROSTRA 501004, among others listed above.
Reaction Carrier Thrust Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 8646504 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
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.
One part is listed for the 1999 Buick Regal — GM GENUINE 8646504.
Rebuild Kit
Banner Kit (Overhaul Kit + Friction Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: 3.8L V6 Supercharged | DK8400PS | 🇺🇸 US 🇨🇦 CA | Banner Kit | View on Amazon |
| PA CARGO Fits: 3.8L V6 Supercharged | DK8400MS | 🇺🇸 US 🇨🇦 CA | Banner Kit | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 751137 | 🇺🇸 US 🇨🇦 CA | Banner KitIncludes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings, and Friction clutch plates | View on Amazon |
Deluxe Kit (Master Kit + Filter, Band & Common Bushings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Fits: 3.8L V6 Supercharged | 753078 | 🇺🇸 US 🇨🇦 CA | Plus Kit | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 753023 | 🇺🇸 US 🇨🇦 CA | Plus Kit | View on Amazon |
Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.8L V6 Supercharged | JMS27 | 🇺🇸 US 🇨🇦 CA | Master Kit PlusContains Friction and Steel Clutch Plates, Gaskets, Seals, O'Rings, Sealing Rings, PLUS Oil Filter, Vacuum Modulator, Front Pump Bushing, and Extension Housing Bushing | View on Amazon |
Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Popular Fits: 3.8L V6 Supercharged | K84900M | 🇺🇸 US 🇨🇦 CA | Overhaul Kit | View on Amazon |
| TRANSTEC Popular Fits: 3.8L V6 Supercharged | 81000144 | 🇺🇸 US 🇨🇦 CA | without PistonsMolded Pan Gasket | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 750240 | 🇺🇸 US 🇨🇦 CA | Overhaul KitIncludes: All paper gaskets, Pan gasket, Rubber O rings, Rubber Lip seals, metal clad seals, sealing rings, and Pistons | View on Amazon |
This table covers the rebuild kits for this assembly.
9 Rebuild Kit parts are listed for the 1999 Buick Regal, from PIONEER, PA CARGO, ATP and 1 other brand. PA CARGO K84900M carries the "Popular" badge.
In the Banner Kit (Overhaul Kit + Friction Clutch Plates) grade, PA CARGO and PIONEER supply 3 parts: grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO DK8400PS.
In the Deluxe Kit (Master Kit + Filter, Band & Common Bushings) grade, PIONEER supplies 2 parts: grouped under the catalog's "Deluxe Kit (Master Kit + Filter, Band & Common Bushings)" designation — the notes column spells out what sets them apart. A representative part number is PIONEER 753078.
The Master Kit (Overhaul Kit + Friction & Steel Clutch Plates) section lists 1 option from ATP — grouped under the catalog's "Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)" designation — the notes column spells out what sets them apart. ATP JMS27 is listed in this group.
In the Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) grade, PA CARGO, TRANSTEC and PIONEER supply 3 parts: grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO K84900M.
Listed part numbers: PA CARGO K84900M, PA CARGO DK8400PS and PA CARGO DK8400MS, plus the other parts above.
Retaining Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24204373 | 🇺🇸 US 🇨🇦 CA | Trans. Code 4T65-E-HD/MN74 speed Automatic trans. | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24211765 | 🇺🇸 US 🇨🇦 CA | 2-1Trans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8631028 | 🇺🇸 US 🇨🇦 CA | Direct Clutch Spring Retaining Ring | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24205145 | 🇺🇸 US 🇨🇦 CA | Trans. Code 4T65-E-HD/MN74 speed Automatic trans. | View on Amazon |
This table covers the Retaining rings.
GM GENUINE supplies the 4 Retaining Ring parts for the 1999 Buick Regal.
Part numbers include GM GENUINE 24204373, GM GENUINE 24211765 and GM GENUINE 8631028, among others listed above.
Servo Cover Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24204374 | 🇺🇸 US 🇨🇦 CA | ForwardTrans.Code 4T65-E-HD/MN7 | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24235894 | 🇺🇸 US 🇨🇦 CA | ReverseTrans.Code 4T65-E-HD/MN7 | View on Amazon |
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.
GM GENUINE supplies both parts for the 1999 Buick Regal.
This group includes GM GENUINE 24204374 and GM GENUINE 24235894.
Servo Piston Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24210904 | 🇺🇸 US 🇨🇦 CA | Rim Shape: Square | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 8651541 | 🇺🇸 US 🇨🇦 CA | Rim Shape: Round | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24208959 | 🇺🇸 US 🇨🇦 CA | Fits Trans. code 4T65-E-HD/MN74 speedor Reverse | View on Amazon |
This table covers the seals at the Servo Piston. 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.
GM GENUINE supplies the 3 Servo Piston Seal parts for the 1999 Buick Regal.
Part numbers include GM GENUINE 24210904, GM GENUINE 8651541 and GM GENUINE 24208959.
Shift Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.8L V6 Supercharged | Y1297 | 🇺🇸 US 🇨🇦 CA | Length: 113.74"with Floor Console | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | CA1253 | 🇺🇸 US 🇨🇦 CA | Length: 113.74"with Floor Console | 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.
2 Shift Cable parts are listed for the 1999 Buick Regal, from ATP and PIONEER.
Part numbers include ATP Y1297 and PIONEER CA1253.
Shift Improvement Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER Fits: 3.8L V6 Supercharged | 765025 | 🇺🇸 US 🇨🇦 CA | Valve Body Gasket Kit | View on Amazon |
| SONNAX Fits: 3.8L V6 Supercharged | SC4T65E | 🇺🇸 US 🇨🇦 CA | Sure Cure® Kit | View on Amazon |
| TRANSGO Fits: 3.8L V6 Supercharged | SK4T65E | 🇺🇸 US 🇨🇦 CA | Shift KitFor 4T65E Transmissions | View on Amazon |
| TRANSGO Fits: 3.8L V6 Supercharged | SK4T60EJR | 🇺🇸 US 🇨🇦 CA | Shift KitFor 4T60E Transmissions | View on Amazon |
This table covers the Shift Improvement kits.
4 Shift Improvement Kit parts for the 1999 Buick Regal come from 3 brands — TRANSGO, PIONEER and SONNAX.
This group includes PIONEER 765025, SONNAX SC4T65E and TRANSGO SK4T65E and the remaining parts above.
Shift Shaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: 3.8L V6 Supercharged | SR3451 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKF Fits: 3.8L V6 Supercharged | 480050 | 🇺🇸 US 🇨🇦 CA | Speedi-Sleeve | View on Amazon |
| SKF Fits: 3.8L V6 Supercharged | 99050 | 🇺🇸 US 🇨🇦 CA | Shaft Diameter: 0.500 In | View on Amazon |
This table covers the wear sleeves used to restore a Shift Shaft seal surface.
3 Shift Shaft Repair Sleeve parts are listed for the 1999 Buick Regal, from SKF and SCHAEFFLER.
Listed part numbers: SCHAEFFLER SR3451, SKF 480050 and SKF 99050.
Shift Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 Supercharged | 8792S | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | XO10 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EManual Lever Seal | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 759018 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EManual Lever Seal | View on Amazon |
| SCHAEFFLER Fits: 3.8L V6 Supercharged | SS2114 | 🇺🇸 US 🇨🇦 CA | 4.75 mm WidthNitrile | View on Amazon |
| SKF Fits: 3.8L V6 Supercharged | 4912 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
5 Shift Shaft Seal parts are listed for the 1999 Buick Regal, from ACDELCO, ATP, PIONEER and 2 other brands. ACDELCO 8792S carries the "Popular" badge.
This group includes ACDELCO 8792S, ATP XO10 and PIONEER 759018 and the remaining parts above.
Shift Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 Supercharged | 2141766 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GM GENUINE Popular Fits: 3.8L V6 Supercharged | 24219819 | 🇺🇸 US 🇨🇦 CA | Fits 1-2, 3-4Trans.Code 4T65-E-HD/MN7 | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 Supercharged | TCS17 | 🇺🇸 US 🇨🇦 CA | 1-2, 3-4 Shift Solenoid | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 3.8L V6 Supercharged | TCS39 | 🇺🇸 US 🇨🇦 CA | TCC/Pulse Width Modulation Solenoid | View on Amazon |
| ACDELCO Fits: 3.8L V6 Supercharged | 2141894 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | JE54 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ATP Fits: 3.8L V6 Supercharged | JE55 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BWD/NIEHOFF Fits: 3.8L V6 Supercharged | S9857 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission SolenoidCONTROL SOLENOID | View on Amazon |
| HOLSTEIN Fits: 3.8L V6 Supercharged | 2TCS0001 | 🇺🇸 US 🇨🇦 CA | 1-2, 3-4 Shift Solenoid | View on Amazon |
| PA CARGO Fits: 3.8L V6 Supercharged | 84955 | 🇺🇸 US 🇨🇦 CA | General Motors trans.Trans. code 4T65-E | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 772280 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E1-2, 3-4 Shift | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 772284 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PIONEER Fits: 3.8L V6 Supercharged | 771061 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 772286 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ROSTRA Fits: 3.8L V6 Supercharged | 520357 | 🇺🇸 US 🇨🇦 CA | Straight White Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.8L V6 Supercharged | TCS44 | 🇺🇸 US 🇨🇦 CA | Shift Control Solenoid | View on Amazon |
| VEMO Fits: 3.8L V6 Supercharged | V51770007 | 🇺🇸 US 🇨🇦 CA | Fits Body code WB69 | View on Amazon |
| VEMO Fits: 3.8L V6 Supercharged | V51770004 | 🇺🇸 US 🇨🇦 CA | Plug (Connector): 2 Pins | 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.
18 Shift Solenoid parts are listed for the 1999 Buick Regal, from PIONEER, STANDARD MOTOR PRODUCTS, ACDELCO and 7 other brands. ACDELCO 2141766 carries the "Popular" badge.
Side Cover Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 3.8L V6 Supercharged | TOS18723 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24206959 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
| VICTOR REINZ Fits: 3.8L V6 Supercharged | 711496100 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E17 Bolt | View on Amazon |
This table covers the seals at the Side 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.
3 Side Cover Seal parts are listed for the 1999 Buick Regal, from FEL-PRO, GM GENUINE and VICTOR REINZ.
Part numbers include FEL-PRO TOS18723, GM GENUINE 24206959 and VICTOR REINZ 711496100.
Stator Support Shaft Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 3.8L V6 Supercharged | CB31 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EPosition: Drive Sprocket Support - Stator Support - Front - Small Input Shafts | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755081 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EInner Diameter: 0.9" | 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.
2 Stator Support Shaft Bushing parts for the 1999 Buick Regal come from 2 brands — ATP and PIONEER.
This group includes ATP CB31 and PIONEER 755081.
Sun Gear Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DURA-BOND Fits: 3.8L V6 Supercharged | GMT61 | 🇺🇸 US 🇨🇦 CA | Rear Sun Gear (Rear) | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 755057 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EInternal Reaction Sun Gear | 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 are listed for the 1999 Buick Regal, from DURA-BOND and PIONEER.
Part numbers include DURA-BOND GMT61 and PIONEER 755057.
Torque Converter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DYNAMIC REMANUFACTURING Fits: 3.8L V6 Supercharged | DGM111 | 🇺🇸 US 🇨🇦 CA | Reman. | View on Amazon |
| TC REMANUFACTURING Fits: 3.8L V6 Supercharged | B210006 | 🇺🇸 US | Trans. code 4T65-EConverter Codes: 12491980, 24206447, 24213729, 24215416, 24216222, 24216232, 24230004, 24230005, 24230006, JZFM | View on Amazon |
| TC REMANUFACTURING Fits: 3.8L V6 Supercharged | B21JSFM | 🇺🇸 US | Converter Codes: 12491978, 24207239, 24207329, 24207734, 24208860, 24216224, 24216226, 24230001, Green Dot, JSFM0001 Converter Code | View on Amazon |
| TC REMANUFACTURING Fits: 3.8L V6 Supercharged | B21JTFM | 🇺🇸 US 🇨🇦 CA | Reman. | View on Amazon |
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.
4 Torque Converter parts for the 1999 Buick Regal come from 2 brands — TC REMANUFACTURING and DYNAMIC REMANUFACTURING.
Part numbers include DYNAMIC REMANUFACTURING DGM111, TC REMANUFACTURING B210006 and TC REMANUFACTURING B21JSFM, among others listed above.
Torque Converter Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 11588468 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the Torque Converter bolts.
One part is listed for the 1999 Buick Regal — GM GENUINE 11588468.
Torque Converter Clutch Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Popular Fits: 3.8L V6 Supercharged | 77942 | 🇺🇸 US 🇨🇦 CA | General Motors trans.Trans. code 4T65-E | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | CE2 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EA & B Shift - Lock-Up, Not Pulse-Width-Modulated - Shift 1-2, 3-4 | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 771023 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EA & B Shift | View on Amazon |
| ROSTRA Fits: 3.8L V6 Supercharged | 520240 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-ETCC Pulse Width Modulation Solenoid | View on Amazon |
| WELLS Fits: 3.8L V6 Supercharged | 2N1217 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EPulse Width Modulator Solenoid | 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.
5 Torque Converter Clutch Solenoid parts for the 1999 Buick Regal come from 5 brands — PA CARGO, ATP, PIONEER and 2 other brands. The "Popular" part is PA CARGO 77942.
This group includes PA CARGO 77942, ATP CE2 and PIONEER 771023 and the remaining parts above.
Torque Converter Pulse Width Modulation (PWM) Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24227747 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
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.
One part is listed for the 1999 Buick Regal — GM GENUINE 24227747.
Torque Converter Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 3.8L V6 Supercharged | 8685515 | 🇺🇸 US 🇨🇦 CA | Red | View on Amazon |
| NATIONAL Popular Fits: 3.8L V6 Supercharged | 4918 | 🇺🇸 US 🇨🇦 CA | Fits Trans. code 4T65-E-HD/MN7General Motors trans.or Trans. code 4T65-E | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | XO4 | 🇺🇸 US 🇨🇦 CA | Helix | View on Amazon |
| BCA Fits: 3.8L V6 Supercharged | NS4918 | 🇺🇸 US 🇨🇦 CA | with Flanged Design | View on Amazon |
| BCA Fits: 3.8L V6 Supercharged | NS4072N | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-Ewith Non-Flanged Design | View on Amazon |
| NATIONAL Fits: 3.8L V6 Supercharged | 4072N | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EGeneral Motors trans. | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 759027 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
| TIMKEN Fits: 3.8L V6 Supercharged | 4072N | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 Supercharged | WS4072N | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-EGeneral Motors trans. | View on Amazon |
| WJB / INMOTION PARTS Fits: 3.8L V6 Supercharged | WS4918 | 🇺🇸 US 🇨🇦 CA | Fits Trans. code 4T65-E-HD/MN7General Motors trans.or Trans. code 4T65-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.
10 Torque Converter Shaft Seal parts are listed for the 1999 Buick Regal, from NATIONAL, BCA, WJB / INMOTION PARTS and 4 other brands. GM GENUINE 8685515 carries the "Popular" badge.
Transmission Fluid
ATF +4
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: 3.8L V6 Supercharged | 1058112 | 🇺🇸 US 🇨🇦 CA | ATF441 Liter | View on Amazon |
| PENTOSIN Fits: 3.8L V6 Supercharged | 1058212 | 🇺🇸 US 🇨🇦 CA | ATF445 Liters | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 Supercharged | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
| VALVOLINE Popular Fits: 3.8L V6 Supercharged | 798153 | 🇺🇸 US 🇨🇦 CA | Dexron III / Mercon ATF1 Quart | View on Amazon |
| MOBIL Fits: 3.8L V6 Supercharged | 126411 | 🇺🇸 US 🇨🇦 CA | Dexron-VI ATF | View on Amazon |
| VALVOLINE Fits: 3.8L V6 Supercharged | 822405 | 🇺🇸 US 🇨🇦 CA | Dexron VI/Mercon LV ATF1 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 Supercharged | 773636 | 🇺🇸 US 🇨🇦 CA | Dexron III / Mercon ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.8L V6 Supercharged | 883572 | 🇺🇸 US 🇨🇦 CA | Dexron VI/Mercon LV ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.8L V6 Supercharged | VV349 | 🇺🇸 US 🇨🇦 CA | Dexron III / Mercon ATF5 Gallon Pail | View on Amazon |
Mercon
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.8L V6 Supercharged | 822345 | 🇺🇸 US 🇨🇦 CA | Mercon V ATF1 Quart | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 3.8L V6 Supercharged | 126505 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle ATF | View on Amazon |
| VALVOLINE Popular Fits: 3.8L V6 Supercharged | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 3.8L V6 Supercharged | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| ATP Fits: 3.8L V6 Supercharged | AT216 | 🇺🇸 US 🇨🇦 CA | Synthetic Multi-Vehicle Automatic Transmission Fluid1 Quart | View on Amazon |
| LIQUI MOLY Fits: 3.8L V6 Supercharged | 20018 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 12001 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.8L V6 Supercharged | 20020 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 12005 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.8L V6 Supercharged | 20022 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 120020 Liter | View on Amazon |
| LUBEGARD Fits: 3.8L V6 Supercharged | 69032 | 🇺🇸 US 🇨🇦 CA | 1 QuartComplete Full Synthetic ATF Fluid | View on Amazon |
| VALVOLINE Fits: 3.8L V6 Supercharged | 855459 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Transfer Case Fluid1 Quart | View on Amazon |
| VALVOLINE Fits: 3.8L V6 Supercharged | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
Type III (H)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.8L V6 Supercharged | 109240 | 🇺🇸 US | 1 Quart | View on Amazon |
| ACDELCO Fits: 3.8L V6 Supercharged | 109241 | 🇺🇸 US | 1 Gallon | View on Amazon |
Type T-4 (Type T-IV)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Fits: 3.8L V6 Supercharged | 30040093750 | 🇺🇸 US | ATF Type TLS1 Quart | View on Amazon |
| IDEMITSU Fits: 3.8L V6 Supercharged | 30040093953 | 🇺🇸 US | ATF Type TLS5 Quart | View on Amazon |
ZF Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: 3.8L V6 Supercharged | 1058106 | 🇺🇸 US 🇨🇦 CA | ATF61 Liter | View on Amazon |
| PENTOSIN Fits: 3.8L V6 Supercharged | 1058207 | 🇺🇸 US 🇨🇦 CA | 5 LitersATF or ATF6 | View on Amazon |
| PENTOSIN Fits: 3.8L V6 Supercharged | 1058306 | 🇺🇸 US 🇨🇦 CA | ATF620 Liters or 1 Liter | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 3.8L V6 Supercharged | 899179 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic ATF1 Quart | 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.
28 Transmission Fluid parts for the 1999 Buick Regal come from 8 brands — VALVOLINE, PENTOSIN, ACDELCO and 5 other brands. The "Popular" part is ACDELCO 109243. Grades run from ATF +4 through ZF Fluid; Multi-Vehicle is the most populated section, led by VALVOLINE, LIQUI MOLY, MOBIL and 2 other brands.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: 3.8L V6 Supercharged | 19610 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: 3.8L V6 Supercharged | 60902 | 🇺🇸 US 🇨🇦 CA | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 3.8L V6 Supercharged | 19689 | 🇺🇸 US 🇨🇦 CA | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: 3.8L V6 Supercharged | 63010 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 3.8L V6 Supercharged | 63016 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: 3.8L V6 Supercharged | 63032 | 🇺🇸 US 🇨🇦 CA | Platinum Universal ATF Protectant32 oz | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
6 Transmission Fluid Additive parts for the 1999 Buick Regal come from LUBEGARD. The "Popular" part is LUBEGARD 19610.
Listed part numbers: LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, plus the other parts above.
Transmission Mount
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 3.8L V6 Supercharged | SKMA2818 | 🇺🇸 US 🇨🇦 CA | Left Lower | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEA / MARMON RIDE CONTROL Popular Fits: 3.8L V6 Supercharged | A2818 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WESTAR Popular Fits: 3.8L V6 Supercharged | EM2818 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ANCHOR Fits: 3.8L V6 Supercharged | 2818 | 🇺🇸 US 🇨🇦 CA | Left LowerRubber | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 22146688 | 🇺🇸 US 🇨🇦 CA | WHITE | View on Amazon |
| PIONEER Fits: 3.8L V6 Supercharged | 621035 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WESTAR Fits: 3.8L V6 Supercharged | EM2818G | 🇺🇸 US 🇨🇦 CA | Gold Line | View on Amazon |
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.
7 Transmission Mount parts are listed for the 1999 Buick Regal, from WESTAR, SKP, DEA / MARMON RIDE CONTROL and 3 other brands. DEA / MARMON RIDE CONTROL A2818 carries the "Popular" badge.
Economy: 1 part, from SKP. A representative part number is SKP SKMA2818.
The Standard Replacement section: 6 options from WESTAR, DEA / MARMON RIDE CONTROL, ANCHOR and 2 other brands. DEA / MARMON RIDE CONTROL A2818 is listed in this group.
This group includes DEA / MARMON RIDE CONTROL A2818, SKP SKMA2818 and WESTAR EM2818 and the remaining parts above.
Turbine Shaft Fluid Seal Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 8643058 | 🇺🇸 US 🇨🇦 CA | Trans. Code 4T65-E-HD/MN74 Speed | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24208978 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the Turbine Shaft Fluid Seal rings.
2 Turbine Shaft Fluid Seal Ring parts for the 1999 Buick Regal come from GM GENUINE.
This group includes GM GENUINE 8643058 and GM GENUINE 24208978.
Turbine Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 8662686 | 🇺🇸 US 🇨🇦 CA | Color: OrangeSealing Material: Rubber | View on Amazon |
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.
This group shows a single part: GM GENUINE 8662686.
Valve Body
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PA CARGO Fits: 3.8L V6 Supercharged | GM4633 | 🇺🇸 US 🇨🇦 CA | Reman. | View on Amazon |
| SONNAX Fits: 3.8L V6 Supercharged | GM035 | 🇺🇸 US 🇨🇦 CA | RemanDoes Not Include Pump or Separator Plate | View on Amazon |
This table covers the valve bodies that route hydraulic pressure inside the transmission.
2 Valve Body parts for the 1999 Buick Regal come from 2 brands — PA CARGO and SONNAX.
This group includes PA CARGO GM4633 and SONNAX GM035.
Valve Body Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24211955 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the Valve Body covers.
One part is listed for the 1999 Buick Regal — GM GENUINE 24211955.
Valve Body Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24205119 | 🇺🇸 US 🇨🇦 CA | Trans. code 4T65-E-HD/MN74 speed | View on Amazon |
This table covers the gaskets that seal the Valve Body Cover. 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.
This group shows a single part: GM GENUINE 24205119.
Valve Body Separator Plate
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.8L V6 Supercharged | 24217552 | 🇺🇸 US 🇨🇦 CA | Includes Gaskets | 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.
One part is listed for the 1999 Buick Regal — GM GENUINE 24217552.
Valve Body Vacuum Tester
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SONNAX Fits: 3.8L V6 Supercharged | 84754VTP | 🇺🇸 US 🇨🇦 CA | Vacuum Test Plate KitFor GM 4T65-E Units | View on Amazon |
This table covers the testers used to diagnose a valve body.
This group shows a single part: SONNAX 84754VTP.
Buying Automatic Transmission Parts for a 1999 Buick Regal
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: Transmission Fluid and Shift Solenoid .
Frequently Asked Questions
How many automatic transmission parts fit the 1999 Buick Regal?
Our catalog currently lists 275 automatic transmission parts for the 1999 Buick Regal across 71 subcategories and 47 brands, covering both the 3.8L V6 and the 3.8L V6 Supercharged. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 1999 Buick Regal 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 1999 Buick Regal?
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 1999 Buick Regal 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 1999 Buick Regal?
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 1999 Buick Regal
Automatic Transmission Parts for Other Buick Regal Years
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