2021 Chevrolet Blazer 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

5 Axle Shaft Seal parts for the 2021 Chevrolet Blazer come from 4 brands — GM GENUINE, SKF, ACDELCO and 1 other brand. The "Popular" part is SKF 13544A. 4 parts fit every engine; the other 1 is engine-specific.

Part numbers include SKF 13544A, ACDELCO 291363 and GM GENUINE 23276834, among others listed above.

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

18 CV Axle parts for the 2021 Chevrolet Blazer come from 5 brands — TRAKMOTIVE, GSP, TOP NOTCH and 2 other brands. The "Popular" part is TOP NOTCH TN20367. 4 parts fit every engine; the other 14 are engine-specific.

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 2021 Chevrolet Blazer come from GM GENUINE.

Part numbers include GM GENUINE 85662927 and GM GENUINE 85662928.

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

GM GENUINE supplies the 6 CV Joint Boot Band parts for the 2021 Chevrolet Blazer. GM GENUINE 11611965 carries the "Popular" badge. 3 parts fit every engine; the other 3 are engine-specific.

Part numbers include GM GENUINE 11611965, GM GENUINE 11611752 and GM GENUINE 84167063, among others listed above.

This table covers the CV Joint Lock rings. Read more

GM GENUINE supplies the 3 CV Joint Lock Ring parts for the 2021 Chevrolet Blazer.

This group includes GM GENUINE 90223082, GM GENUINE 22727024 and GM GENUINE 90121202.

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

5 Differential Carrier parts for the 2021 Chevrolet Blazer come from GM GENUINE.

This group includes GM GENUINE 24289904, GM GENUINE 24289906 and GM GENUINE 24284661 and the remaining parts above.

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

This group shows a single part: GM GENUINE 24237378.

This table covers the Differential Carrier bolts. Read more

One part is listed for the 2021 Chevrolet Blazer — 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 2021 Chevrolet Blazer come from GM GENUINE. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.5L L4 and 3.6L V6).

Part numbers include GM GENUINE 84905394 and GM GENUINE 84417056.

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

5 Differential Carrier Fluid Baffle parts for the 2021 Chevrolet Blazer come from GM GENUINE.

Listed part numbers: GM GENUINE 24298738, GM GENUINE 24298739 and GM GENUINE 24298737, plus the other parts above.

This table covers the Differential control modules. Read more

One part is listed for the 2021 Chevrolet Blazer — 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 2021 Chevrolet Blazer — GM GENUINE 23234990.

This table covers the Differential Fill drain plugs. Read more

2 Differential Fill / Drain Plug parts for the 2021 Chevrolet Blazer come from GM GENUINE. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.5L L4 and 3.6L V6).

This group includes 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 23276833.

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 2021 Chevrolet Blazer come from 2 brands — GM GENUINE and TIMKEN. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.5L L4 and 3.6L V6).

This group includes GM GENUINE 87845955 and TIMKEN SL260561.

This table covers the Differential Ring gears. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Blazer.

This group includes GM GENUINE 24298251 and GM GENUINE 24298250.

This table covers the Differential Ring Gear bolts. Read more

This group shows a single part: AAM 40061033.

This table covers the Drive Shaft retainers. Read more

One part is listed for the 2021 Chevrolet Blazer — 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 2021 Chevrolet Blazer come from 2 brands — VALVOLINE and ACDELCO. The "Popular" part is VALVOLINE VV975. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.5L L4 and 3.6L V6).

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

This table covers the Retaining rings. Read more

2 Retaining Ring parts for the 2021 Chevrolet Blazer come from GM GENUINE.

This group includes GM GENUINE 24231157 and GM GENUINE 24271417.

This table covers the Torque tubes. Read more

One part is listed for the 2021 Chevrolet Blazer — GM GENUINE 85686599.

This table covers the Transfer Case bolts. Read more

3 Transfer Case Bolt parts are listed for the 2021 Chevrolet Blazer, from GM GENUINE and ELRING.

This group includes ELRING 795390, GM GENUINE 11603660 and GM GENUINE 89058602.

This table covers the Transfer Case flanges. Read more

One part is listed for the 2021 Chevrolet Blazer — GM GENUINE 19132948.

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

7 Transfer Case Fluid parts for the 2021 Chevrolet Blazer come from VALVOLINE. The "Popular" part is VALVOLINE VV975. Every part fits all 3 engine options (2.0L L4 Turbocharged, 2.5L L4 and 3.6L V6).

This group includes VALVOLINE VV975, VALVOLINE 889785 and VALVOLINE 882505 and the remaining parts 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

2 Transfer Case Gasket parts are listed for the 2021 Chevrolet Blazer, from ELRING and GM GENUINE.

Part numbers include ELRING B18340 and GM GENUINE 19132946.

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

GM GENUINE supplies the 3 Transfer Case Housing Extension Seal parts for the 2021 Chevrolet Blazer.

This group includes GM GENUINE 85136882, GM GENUINE 19208892 and GM GENUINE 85136884.

This table covers the seals at the Transfer Case Input Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

GM GENUINE supplies the 3 Transfer Case Input Shaft Seal parts for the 2021 Chevrolet Blazer.

Listed part numbers: GM GENUINE 84823713, GM GENUINE 85634029 and GM GENUINE 19132945.

This table covers the Transfer Case Intermediate shafts. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Blazer.

This group includes GM GENUINE 84392864 and GM GENUINE 19209536.

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

2 Transfer Case Intermediate Shaft Seal parts for the 2021 Chevrolet Blazer come from GM GENUINE.

Listed part numbers: GM GENUINE 19132944 and GM GENUINE 19206322.

This table covers the Transfer Case Locating pins. Read more

This group shows a single part: GM GENUINE 84392855.

This table covers the Transfer Case motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Blazer.

Listed part numbers: GM GENUINE 86805253 and GM GENUINE 86805252.

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

This group shows a single part: GM GENUINE 19256069.

This table covers the Transfer Case Output Shaft nuts. Read more

This group shows a single part: GM GENUINE 89047861.

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 84465339.

This table covers the wear sleeves used to restore a Transfer Case Shift Shaft seal surface. Read more

One part is listed for the 2021 Chevrolet Blazer — GM GENUINE 84785609.