2020 Buick Regal Tourx Drivetrain Parts

This table covers the seals where an axle shaft exits the 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. Read more

2 Axle Shaft Seal parts for the 2020 Buick Regal Tourx come from 2 brands — GM GENUINE and TIMKEN.

Part numbers include GM GENUINE 291347 and TIMKEN SL260454.

This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes. Read more

5 CV Axle parts for the 2020 Buick Regal Tourx come from 5 brands — APWI, GM GENUINE, GSP and 2 other brands. The "Popular" part is APWI GM8498.

This group includes APWI GM8498, GM GENUINE 84675895 and GSP NCV25006 and the remaining parts above.

This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn. Read more

2 CV Joint Boot parts for the 2020 Buick Regal Tourx come from GM GENUINE.

Listed part numbers: GM GENUINE 84738786 and GM GENUINE 84754480.

This table covers the bands that clamp a CV boot to the joint. Read more

GM GENUINE supplies the 4 CV Joint Boot Band parts for the 2020 Buick Regal Tourx.

Part numbers include GM GENUINE 84738789, GM GENUINE 84738795 and GM GENUINE 84754475, among others listed above.

This table covers the CV Joint Lock rings. Read more

One part is listed for the 2020 Buick Regal Tourx — GM GENUINE 90121202.

This table covers the carriers that hold the differential gears in the axle. Read more

2 Differential Carrier parts for the 2020 Buick Regal Tourx come from GM GENUINE.

Part numbers include GM GENUINE 24281433 and GM GENUINE 85755639.

This table covers the Differential Carrier 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. Read more

2 Differential Carrier Bushing parts for the 2020 Buick Regal Tourx come from GM GENUINE.

Listed part numbers: GM GENUINE 84905394 and GM GENUINE 84929903.

This table covers the Differential Carrier shims. Read more

One part is listed for the 2020 Buick Regal Tourx — GM GENUINE 24281443.

This table covers the Differential control modules. Read more

One part is listed for the 2020 Buick Regal Tourx — GM GENUINE 85001638.

This table covers the Differential Cover plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

One part is listed for the 2020 Buick Regal Tourx — GM GENUINE 23234990.

This table covers the Differential Fill drain plugs. Read more

2 Differential Fill / Drain Plug parts for the 2020 Buick Regal Tourx come from GM GENUINE.

Listed part numbers: GM GENUINE 19256069 and GM GENUINE 19256068.

This table covers the slingers that keep gear oil off the pinion seal. Read more

This group shows a single part: GM GENUINE 23269749.

This table covers the seals at the differential pinion yoke. 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. Read more

This group shows a single part: GM GENUINE 23269748.

This table covers the Drive Shaft retainers. Read more

One part is listed for the 2020 Buick Regal Tourx — GM GENUINE 23432713.

This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle. Read more

5 Gear Oil parts for the 2020 Buick Regal Tourx come from 2 brands — VALVOLINE and ACDELCO. The "Popular" part is VALVOLINE VV975.

Listed part numbers: VALVOLINE VV975, ACDELCO 105050 and VALVOLINE 889785, plus the other parts above.

This table covers the Transfer Case adapters. Read more

One part is listed for the 2020 Buick Regal Tourx — GM GENUINE 84069288.

This table covers the seals at the Transfer Case Adapter. 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. Read more

This group shows a single part: GM GENUINE 84111116.

This table covers the fluids specified for the transfer case. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable. Read more

8 Transfer Case Fluid parts for the 2020 Buick Regal Tourx come from 3 brands — VALVOLINE, GM GENUINE and IDEMITSU. The "Popular" part is VALVOLINE VV820.

The SAE 75W-90 section lists 6 options from VALVOLINE — grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. VALVOLINE VV820 is listed in this group.

In the Versatrak grade, GM GENUINE supplies 1 part: grouped under the catalog's "Versatrak" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 104105.

1 further part sits outside the graded sections, with the same engine-level match.

This group includes VALVOLINE VV820, VALVOLINE VV975 and VALVOLINE 889785 and the remaining parts above.

This table covers the seals at the Transfer Case Intermediate 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. Read more

This group shows a single part: GM GENUINE 85732462.

This table covers the Transfer Case Vent 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. Read more

This group shows a single part: GM GENUINE 23348356.