2015 Buick Regal Drivetrain Parts

This table covers the AWD Coupling fluids. 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

This group shows a single part: ACDELCO 104070.

This table covers the AWD Coupling Oil filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

2 AWD Coupling Oil Filter parts for the 2015 Buick Regal come from 2 brands — GM GENUINE and VAICO.

Part numbers include GM GENUINE 20986573 and VAICO V401565.

This table covers the AWD Coupling Oil pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit. Read more

4 AWD Coupling Oil Pump parts for the 2015 Buick Regal come from 4 brands — AUTOTECNICA, DORMAN, GM GENUINE and 1 other brand.

Part numbers include AUTOTECNICA GM0422033, DORMAN 699000 and GM GENUINE 22765779, among others listed above.

This table covers the Axle Intermediate Shaft 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. Read more

This group shows a single part: GM GENUINE 55573639.

This table covers the seals at the Axle 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

GM GENUINE supplies the 3 Axle Intermediate Shaft Seal parts for the 2015 Buick Regal.

This group includes GM GENUINE 55588984, GM GENUINE 22759189 and GM GENUINE 55573640.

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 2015 Buick Regal come from 2 brands — GM GENUINE and TIMKEN.

Part numbers include GM GENUINE 291332 and TIMKEN SL260439.

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

27 CV Axle parts for the 2015 Buick Regal come from 8 brands — GSP, TRAKMOTIVE, TOP NOTCH and 5 other brands. The "Popular" part is APWI GM8436. Grades run from Economy through Standard Replacement; Standard Replacement is the most populated section, led by GSP, TRAKMOTIVE, TOP NOTCH and 4 other brands.

This table covers the CV Intermediate shafts. Read more

GM GENUINE supplies the 3 CV Intermediate Shaft parts for the 2015 Buick Regal.

Part numbers include GM GENUINE 22901057, GM GENUINE 23391824 and GM GENUINE 22910264.

This table covers the constant-velocity joints at each end of a drive axle. Read more

3 CV Joint parts for the 2015 Buick Regal come from ACDELCO.

Listed part numbers: ACDELCO 39196365, ACDELCO 39207311 and ACDELCO 39207312.

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

6 CV Joint Boot parts for the 2015 Buick Regal come from 2 brands — MEVOTECH and GM GENUINE. The "Popular" part is MEVOTECH DX551.

Part numbers include MEVOTECH DX551, GM GENUINE 20894127 and GM GENUINE 20920176, among others listed above.

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

GM GENUINE supplies the 5 CV Joint Boot Band parts for the 2015 Buick Regal.

This group includes GM GENUINE 364038, GM GENUINE 88897260 and GM GENUINE 93170250 and the remaining parts above.

This table covers the CV Joint Lock rings. Read more

GM GENUINE supplies the 6 CV Joint Lock Ring parts for the 2015 Buick Regal. GM GENUINE 90121202 carries the "Popular" badge.

Part numbers include GM GENUINE 90121202, GM GENUINE 90105478 and GM GENUINE 13317915, among others listed above.

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

2 Differential Carrier parts for the 2015 Buick Regal come from GM GENUINE.

This group includes GM GENUINE 24260304 and GM GENUINE 24260307.

This table covers the bearings and races that support the differential carrier. Read more

9 Differential Carrier Bearing / Race parts for the 2015 Buick Regal come from 4 brands — GM GENUINE, WJB / INMOTION PARTS, NATIONAL and 1 other brand. The "Popular" part is WJB / INMOTION PARTS WT32010X.

The Economy section lists 1 option from WJB / INMOTION PARTS — the catalog's value-priced group. WJB / INMOTION PARTS WT32010X is listed in this group.

In the Standard Replacement grade, GM GENUINE, NATIONAL and BCA supply 5 parts: built to original-equipment specification. A representative part number is NATIONAL 32010X.

3 further parts sit outside the graded sections, with the same engine-level match.

This group includes WJB / INMOTION PARTS WT32010X, NATIONAL 32010X and BCA NB32010X and the remaining parts above.

This table covers the Differential Carrier bolts. Read more

One part is listed for the 2015 Buick Regal — GM GENUINE 11609598.

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 2015 Buick Regal come from GM GENUINE.

This group includes GM GENUINE 13243708 and GM GENUINE 13243707.

This table covers the baffles that control oil in the differential carrier. Read more

3 Differential Carrier Fluid Baffle parts for the 2015 Buick Regal come from GM GENUINE.

Listed part numbers: GM GENUINE 24263150, GM GENUINE 24246165 and GM GENUINE 24240156.

This table covers the Differential Carrier shims. Read more

GM GENUINE supplies the 5 Differential Carrier Shim parts for the 2015 Buick Regal.

Part numbers include GM GENUINE 24234094, GM GENUINE 24234095 and GM GENUINE 24234096, among others listed above.

This table covers the clutch packs in a limited-slip or locking differential. Read more

This group shows a single part: GM GENUINE 85632233.

This table covers the Differential Clutch Pressure Control 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. Read more

2 Differential Clutch Pressure Control Valve parts are listed for the 2015 Buick Regal, from DORMAN and GM GENUINE.

This group includes DORMAN 699010 and GM GENUINE 13280097.

This table covers the Differential control modules. Read more

One part is listed for the 2015 Buick Regal — GM GENUINE 19435910.

This table covers the Differential Cover bolts. Read more

This group shows a single part: GM GENUINE 13280041.

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 2015 Buick Regal — GM GENUINE 13280045.

This table covers the Differential Fill drain plugs. Read more

This group shows a single part: GM GENUINE 55573646.

This table covers the Differential Housing bolts. Read more

This group shows a single part: GM GENUINE 13280065.

This table covers the Differential Oil Pump 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

One part is listed for the 2015 Buick Regal — GM GENUINE 20813559.

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

This group shows a single part: GM GENUINE 24239418.

This table covers the flanges that connect the driveshaft to the differential pinion. Read more

This group shows a single part: GM GENUINE 13334081.

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

2 Differential Pinion Seal parts for the 2015 Buick Regal come from 2 brands — GM GENUINE and TIMKEN.

Listed part numbers: GM GENUINE 13296280 and TIMKEN SL260582.

This table covers kits that group the bearings, races and seals for a differential rebuild. Read more

One part is listed for the 2015 Buick Regal — GM GENUINE 24069069.

This table covers the Differential Ring gears. Read more

One part is listed for the 2015 Buick Regal — GM GENUINE 24230683.

This table covers the seals at the Differential. 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

GM GENUINE supplies the 3 Differential Seal parts for the 2015 Buick Regal.

Listed part numbers: GM GENUINE 24225582, GM GENUINE 13334079 and GM GENUINE 13334078.

This table covers the Differential washers. Read more

6 Differential Washer parts for the 2015 Buick Regal come from GM GENUINE. The "Popular" part is GM GENUINE 24234088.

Listed part numbers: GM GENUINE 24234088, GM GENUINE 24234081 and GM GENUINE 24234082, plus the other parts above.

This table covers the driveshafts that carry torque from the transmission or transfer case. Read more

3 Drive Shaft parts are listed for the 2015 Buick Regal, from VAICO and GM GENUINE.

Listed part numbers: GM GENUINE 22960219, VAICO V510490 and VAICO V510492.

This table covers the Drive Shaft bolts. Read more

2 Drive Shaft Bolt parts for the 2015 Buick Regal come from GM GENUINE.

This group includes GM GENUINE 11588725 and GM GENUINE 13324897.

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

This group shows a single part: ACDELCO 104016.

This table covers the Gear Oil additives. Read more

This group shows a single part: ACDELCO 104003.

This table covers the Retaining rings. Read more

This group shows a single part: GM GENUINE 24231157.

This table covers the Transfer Case bolts. Read more

One part is listed for the 2015 Buick Regal — ELRING 795390.

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

4 Transfer Case Fluid parts for the 2015 Buick Regal come from 2 brands — IDEMITSU and GM GENUINE.

The SAE 75W-90 section lists 1 option from IDEMITSU — grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. IDEMITSU 30305024750 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.

2 further parts sit outside the graded sections, with the same engine-level match.

Part numbers include IDEMITSU 30305024750 and GM GENUINE 104105, among others listed above.

This table covers the gaskets that seal the Transfer 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. Read more

One part is listed for the 2015 Buick Regal — GM GENUINE 55571459.

This table covers the seals at the Transfer Case Housing Extension. 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

One part is listed for the 2015 Buick Regal — GM GENUINE 55574658.

This table covers the Transfer Case Oil drain plugs. Read more

This group shows a single part: GM GENUINE 55573646.

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

This group shows a single part: GM GENUINE 55573645.