The 2020 Chevrolet Blazer has 78 drivetrain parts with verified fitment on this page — 34 part types and 11 brands, covering all 3 engine options (2.0L L4 Turbocharged, 2.5L L4 and 3.6L V6). Each part includes a manufacturer part number and application notes.
On the 2020 Chevrolet Blazer, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. Most of the listed parts are CV Axle (14 parts), Transfer Case Fluid (7 parts) and Axle Shaft Seal (5 parts). The other 31 part types cover the remaining 52 parts.
The 2020 Chevrolet Blazer was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
11 brands supply drivetrain parts for the 2020 Chevrolet Blazer, led by GM GENUINE (47 parts), VALVOLINE (11 parts) and TRAKMOTIVE (4 parts), plus 8 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Chevrolet Blazer. 7 parts have it, including SKF 13544A (Axle Shaft Seal) and TOP NOTCH TN20367 (CV Axle). Each part number opens a page with every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Popular Fits: 3.6L V6 | 13544A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| ACDELCO Fits: 3.6L V6 | 291363 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 23276834 | 🇺🇸 US 🇨🇦 CA | Rear LeftAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 291342 | 🇺🇸 US 🇨🇦 CA | RearAWD | View on Amazon |
| TIMKEN Fits: 3.6L V6 | SL260587 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right | View on Amazon |
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.
5 Axle Shaft Seal parts are listed for the 2020 Chevrolet Blazer, from GM GENUINE, SKF, ACDELCO and 1 other brand. SKF 13544A carries the "Popular" badge.
Listed part numbers: SKF 13544A, ACDELCO 291363 and GM GENUINE 23276834, plus the other parts above.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOP NOTCH Popular Fits: 3.6L V6 | TN20367 | 🇺🇸 US 🇨🇦 CA | Front RightAWD | View on Amazon |
| TRAKMOTIVE Popular Fits: 3.6L V6 | GM8491 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Popular Fits: 3.6L V6 | GM8497 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| APWI Fits: 3.6L V6 | GM8548 | 🇺🇸 US | Front RightFWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 86270999 | 🇺🇸 US 🇨🇦 CA | Front RightFWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 86508788 | 🇺🇸 US 🇨🇦 CA | Universal Joints Included: No | View on Amazon |
| GSP Fits: 3.6L V6 | NCV16016 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear RightLT Model or Premier or RS Model | View on Amazon |
| GSP Fits: 3.6L V6 | NCV17021 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| GSP Fits: 3.6L V6 | NCV17018 | 🇺🇸 US 🇨🇦 CA | Front RightAWD | View on Amazon |
| GSP Fits: 3.6L V6 | NCV17013 | 🇺🇸 US 🇨🇦 CA | Rear LeftLT Model | View on Amazon |
| TOP NOTCH Fits: 3.6L V6 | TN20358 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear RightLT Model or Premier or RS Model | View on Amazon |
| TOP NOTCH Fits: 3.6L V6 | TN20362 | 🇺🇸 US 🇨🇦 CA | Rear LeftLT Model | View on Amazon |
| TRAKMOTIVE Fits: 3.6L V6 | GM86047 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| TRAKMOTIVE Fits: 3.6L V6 | GM86004 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
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.
14 CV Axle parts are listed for the 2020 Chevrolet Blazer, from TRAKMOTIVE, GSP, TOP NOTCH and 2 other brands. TOP NOTCH TN20367 carries the "Popular" badge.
CV Joint Boot Band
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 11611752 | 🇺🇸 US 🇨🇦 CA | Rear Inboard InnerAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 84167063 | 🇺🇸 US 🇨🇦 CA | Front InnerSINGLE USE | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 84167071 | 🇺🇸 US 🇨🇦 CA | Front Outboard OuterLT Model or Premier or RS Model | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 84207707 | 🇺🇸 US 🇨🇦 CA | Fits Rear Outboard InnerCLAMP | View on Amazon |
This table covers the bands that clamp a CV boot to the joint.
4 CV Joint Boot Band parts for the 2020 Chevrolet Blazer come from GM GENUINE.
This group includes GM GENUINE 11611752, GM GENUINE 84167063 and GM GENUINE 84167071 and the remaining parts above.
CV Joint Lock Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 90223082 | 🇺🇸 US 🇨🇦 CA | Fits Front InnerLT Model or Premier or RS Model | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 22727024 | 🇺🇸 US 🇨🇦 CA | Front Inner28.8X2.5X29.5 | View on Amazon |
This table covers the CV Joint Lock rings.
2 CV Joint Lock Ring parts for the 2020 Chevrolet Blazer come from GM GENUINE.
Listed part numbers: GM GENUINE 90223082 and GM GENUINE 22727024.
Differential Carrier
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 24289900 | 🇺🇸 US 🇨🇦 CA | FrontAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 24289902 | 🇺🇸 US 🇨🇦 CA | FrontFWD | View on Amazon |
This table covers the carriers that hold the differential gears in the axle.
GM GENUINE supplies both parts for the 2020 Chevrolet Blazer.
This group includes GM GENUINE 24289900 and GM GENUINE 24289902.
Differential Carrier Bearing / Race
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 24237378 | 🇺🇸 US 🇨🇦 CA | FrontAWD | View on Amazon |
This table covers the bearings and races that support the differential carrier.
One part is listed for the 2020 Chevrolet Blazer — GM GENUINE 24237378.
Differential Carrier Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 11609598 | 🇺🇸 US 🇨🇦 CA | AWDM12X1.75X80.9 | View on Amazon |
This table covers the Differential Carrier bolts.
This group shows a single part: GM GENUINE 11609598.
Differential Carrier Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 84905394 | 🇺🇸 US 🇨🇦 CA | RearAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 84417056 | 🇺🇸 US 🇨🇦 CA | Fits FrontAWD | View on Amazon |
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.
GM GENUINE supplies both parts for the 2020 Chevrolet Blazer.
Part numbers include GM GENUINE 84905394 and GM GENUINE 84417056.
Differential Carrier Fluid Baffle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 24298740 | 🇺🇸 US 🇨🇦 CA | LT Model or Premier or RS ModelTrans.Code 9T65 | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 24298741 | 🇺🇸 US 🇨🇦 CA | LT Model or Premier or RS ModelTrans.Code 9T65 | View on Amazon |
This table covers the baffles that control oil in the differential carrier.
GM GENUINE supplies both parts for the 2020 Chevrolet Blazer.
Part numbers include GM GENUINE 24298740 and GM GENUINE 24298741.
Differential Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 85001638 | 🇺🇸 US 🇨🇦 CA | Programming Required: YES | View on Amazon |
This table covers the Differential control modules.
This group shows a single part: GM GENUINE 85001638.
Differential Cover Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 23234990 | 🇺🇸 US 🇨🇦 CA | Fits AWDLT Model or Premier or RS Model | View on Amazon |
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.
This group shows a single part: GM GENUINE 23234990.
Differential Fill / Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19256069 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 19256068 | 🇺🇸 US 🇨🇦 CA | Fits RearAWD | View on Amazon |
This table covers the Differential Fill drain plugs.
GM GENUINE supplies both parts for the 2020 Chevrolet Blazer.
Part numbers include GM GENUINE 19256069 and GM GENUINE 19256068.
Differential Oil Slinger
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 23276833 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
This table covers the slingers that keep gear oil off the pinion seal.
One part is listed for the 2020 Chevrolet Blazer — GM GENUINE 23276833.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 87845955 | 🇺🇸 US 🇨🇦 CA | Fits AWDLT Model or Premier or RS Model | View on Amazon |
| TIMKEN Fits: 3.6L V6 | SL260561 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
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.
2 Differential Pinion Seal parts are listed for the 2020 Chevrolet Blazer, from GM GENUINE and TIMKEN.
Listed part numbers: GM GENUINE 87845955 and TIMKEN SL260561.
Differential Ring Gear
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 24298250 | 🇺🇸 US 🇨🇦 CA | FrontLT Model or Premier or RS Model | View on Amazon |
This table covers the Differential Ring gears.
This group shows a single part: GM GENUINE 24298250.
Differential Ring Gear Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AAM Fits: 3.6L V6 | 40061033 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 7/16" x 20 x .88" - Left Hand 6 PT Serrated Hex with Adhesivewith 7.6 (In) Front Axle | View on Amazon |
This table covers the Differential Ring Gear bolts.
One part is listed for the 2020 Chevrolet Blazer — AAM 40061033.
Drive Shaft Retainer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 23432713 | 🇺🇸 US 🇨🇦 CA | Fits AWDLT Model or Premier or RS Model | View on Amazon |
This table covers the Drive Shaft retainers.
This group shows a single part: GM GENUINE 23432713.
Gear Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.6L V6 | VV975 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| ACDELCO Fits: 3.6L V6 | 105050 | 🇺🇸 US | Pentosin CHF-11S33.8 OZ | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 889785 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 882505 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 723856 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
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.
5 Gear Oil parts are listed for the 2020 Chevrolet Blazer, from VALVOLINE and ACDELCO. VALVOLINE VV975 carries the "Popular" badge.
Part numbers include VALVOLINE VV975, ACDELCO 105050 and VALVOLINE 889785, among others listed above.
Retaining Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 24271417 | 🇺🇸 US 🇨🇦 CA | Fits FrontAWD | View on Amazon |
This table covers the Retaining rings.
One part is listed for the 2020 Chevrolet Blazer — GM GENUINE 24271417.
Torque Tube
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 85686599 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
This table covers the Torque tubes.
This group shows a single part: GM GENUINE 85686599.
Transfer Case Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 3.6L V6 | 795390 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Housing Bolt | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 89058602 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 11603660 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
This table covers the Transfer Case bolts.
3 Transfer Case Bolt parts for the 2020 Chevrolet Blazer come from 2 brands — GM GENUINE and ELRING.
This group includes ELRING 795390, GM GENUINE 89058602 and GM GENUINE 11603660.
Transfer Case Flange
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19132948 | 🇺🇸 US 🇨🇦 CA | Rear, OutputAWD | View on Amazon |
This table covers the Transfer Case flanges.
This group shows a single part: GM GENUINE 19132948.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.6L V6 | VV975 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 3.6L V6 | 889785 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 882505 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 723856 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 819195 | 🇺🇸 US 🇨🇦 CA | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 902146 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 3.6L V6 | 904644 | 🇺🇸 US 🇨🇦 CA | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
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.
VALVOLINE supplies the 7 Transfer Case Fluid parts for the 2020 Chevrolet Blazer. VALVOLINE VV975 carries the "Popular" badge.
Listed part numbers: VALVOLINE VV975, VALVOLINE 889785 and VALVOLINE 882505, plus the other parts above.
Transfer Case Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 3.6L V6 | B18340 | 🇺🇸 US 🇨🇦 CA | Rear propshaft at transfer caseFWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 19132946 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
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.
2 Transfer Case Gasket parts for the 2020 Chevrolet Blazer come from 2 brands — ELRING and GM GENUINE.
Part numbers include ELRING B18340 and GM GENUINE 19132946.
Transfer Case Housing Extension Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19208892 | 🇺🇸 US 🇨🇦 CA | RearAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 85136882 | 🇺🇸 US 🇨🇦 CA | InnerAWD | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 85136884 | 🇺🇸 US 🇨🇦 CA | OuterAWD | View on Amazon |
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.
3 Transfer Case Housing Extension Seal parts for the 2020 Chevrolet Blazer come from GM GENUINE.
Part numbers include GM GENUINE 19208892, GM GENUINE 85136882 and GM GENUINE 85136884.
Transfer Case Input Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19132945 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 84823713 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 85634029 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
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.
3 Transfer Case Input Shaft Seal parts for the 2020 Chevrolet Blazer come from GM GENUINE.
This group includes GM GENUINE 19132945, GM GENUINE 84823713 and GM GENUINE 85634029.
Transfer Case Intermediate Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19209536 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
This table covers the Transfer Case Intermediate shafts.
This group shows a single part: GM GENUINE 19209536.
Transfer Case Intermediate Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19132944 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 19206322 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
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.
GM GENUINE supplies both parts for the 2020 Chevrolet Blazer.
This group includes GM GENUINE 19132944 and GM GENUINE 19206322.
Transfer Case Locating Pin
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 84392855 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
This table covers the Transfer Case Locating pins.
One part is listed for the 2020 Chevrolet Blazer — GM GENUINE 84392855.
Transfer Case Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 86805252 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
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.
This group shows a single part: GM GENUINE 86805252.
Transfer Case Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 19256069 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
This table covers the Transfer Case Oil drain plugs.
One part is listed for the 2020 Chevrolet Blazer — GM GENUINE 19256069.
Transfer Case Output Shaft Nut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 89047861 | 🇺🇸 US 🇨🇦 CA | AWDLT Model or Premier or RS Model | View on Amazon |
This table covers the Transfer Case Output Shaft nuts.
One part is listed for the 2020 Chevrolet Blazer — GM GENUINE 89047861.
Transfer Case Output Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 84465339 | 🇺🇸 US 🇨🇦 CA | AWDLT Model | View on Amazon |
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.
One part is listed for the 2020 Chevrolet Blazer — GM GENUINE 84465339.
Transfer Case Shift Shaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 84785609 | 🇺🇸 US 🇨🇦 CA | Contains Two Rows of Teeth | View on Amazon |
This table covers the wear sleeves used to restore a Transfer Case Shift Shaft seal surface.
This group shows a single part: GM GENUINE 84785609.
Buying Drivetrain Parts for a 2020 Chevrolet Blazer
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Every drivetrain 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: CV Axle and Transfer Case Fluid .
Frequently Asked Questions
How many drivetrain parts fit the 2020 Chevrolet Blazer?
Our catalog currently lists 78 drivetrain parts for the 2020 Chevrolet Blazer across 34 subcategories and 11 brands, covering all 3 engine options (2.0L L4 Turbocharged, 2.5L L4 and 3.6L V6). Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2020 Chevrolet Blazer engines?
Yes. Every drivetrain 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 drivetrain problems on a 2020 Chevrolet Blazer?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
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 2020 Chevrolet Blazer 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 2020 Chevrolet Blazer?
First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 Chevrolet Blazer
Drivetrain Parts for Other Chevrolet Blazer Years
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