The 2021 Acura TLX has 24 drivetrain parts with verified fitment on this page — 6 part types and 8 brands, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2021 Acura TLX, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 20 parts of the 24 listed are CV Axle (9 parts), Transfer Case Fluid (6 parts) and Axle Shaft Seal (5 parts). The other 3 part types cover the remaining 4 parts.
The 2021 Acura TLX was sold with both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. 19 parts fit every engine; the other 5 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Acura TLX drivetrain parts are TRAKMOTIVE (6 parts), VALVOLINE (6 parts) and SKF (3 parts), plus 5 more brands.
5 parts on this 2021 Acura TLX page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SKF 16541A (Axle Shaft Seal) and TRAKMOTIVE HO86037 (CV Axle). Click any part number to see every vehicle that part fits.
Axle Shaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Fits: all 2021 TLX engines | SC0889 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
This table covers the Axle 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.
One part is listed for the 2021 Acura TLX — SKF SC0889.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Popular Fits: all 2021 TLX engines | 16541A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| SKF Fits: all 2021 TLX engines | 13702A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| TIMKEN Fits: all 2021 TLX engines | SL260478 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| WJB / INMOTION PARTS Fits: all 2021 TLX engines | WS13702A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear1.378 Shaft Diameter | View on Amazon |
| WJB / INMOTION PARTS Fits: all 2021 TLX engines | WS16541A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | 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 for the 2021 Acura TLX come from 3 brands — SKF, WJB / INMOTION PARTS and TIMKEN. The "Popular" part is SKF 16541A. Every part fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged.
This group includes SKF 16541A, SKF 13702A and TIMKEN SL260478 and the remaining parts above.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRAKMOTIVE Popular Fits: all 2021 TLX engines | HO86037 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Popular Fits: all 2021 TLX engines | HO86048 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| GSP Fits: all 2021 TLX engines | NCV21097 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV21096 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV21100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| TOP NOTCH Fits: all 2021 TLX engines | TN50312 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| TOP NOTCH Fits: 2.0L L4 Turbocharged | TN50311 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right | View on Amazon |
| TRAKMOTIVE Fits: all 2021 TLX engines | HO86044 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: all 2021 TLX engines | HO86042 | 🇺🇸 US 🇨🇦 CA | 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.
9 CV Axle parts for the 2021 Acura TLX come from 3 brands — TRAKMOTIVE, GSP and TOP NOTCH. The "Popular" part is TRAKMOTIVE HO86037. 6 parts fit every engine; the other 3 are engine-specific.
This group includes TRAKMOTIVE HO86037, TRAKMOTIVE HO86048 and GSP NCV21097 and the remaining parts above.
CV Intermediate Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TRAKMOTIVE Fits: 2.0L L4 Turbocharged | HO3539 | 🇺🇸 US 🇲🇽 MX | Front RightFWD | View on Amazon |
| TRAKMOTIVE Fits: 3.0L V6 Turbocharged | HO3547 | 🇺🇸 US | Front | View on Amazon |
This table covers the CV Intermediate shafts.
TRAKMOTIVE supplies both parts for the 2021 Acura TLX.
Listed part numbers: TRAKMOTIVE HO3539 and TRAKMOTIVE HO3547.
Differential Oil Temperature Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: all 2021 TLX engines | 1581807 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Differential Oil 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.
This group shows a single part: BECK/ARNLEY 1581807.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2021 TLX engines | VV820 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Popular Fits: all 2021 TLX engines | VV975 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: all 2021 TLX engines | 889785 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: all 2021 TLX engines | 882505 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2021 TLX engines | 723856 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE Fits: all 2021 TLX engines | VV822 | 🇺🇸 US 🇨🇦 CA | Daily Protection SAE 75W-90 Gear Oil16 Gallon KEG | 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.
6 Transfer Case Fluid parts for the 2021 Acura TLX come from VALVOLINE. The "Popular" part is VALVOLINE VV820. Every part fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged.
This group includes VALVOLINE VV820, VALVOLINE VV975 and VALVOLINE 889785 and the remaining parts above.
Buying Drivetrain Parts for a 2021 Acura TLX
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. Some drivetrain parts fit every engine; others are 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 2021 Acura TLX?
Our catalog currently lists 24 drivetrain parts for the 2021 Acura TLX across 6 subcategories and 8 brands, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2021 Acura TLX engines?
Some do. 19 parts fit every engine; the other 5 are engine-specific. Each row (and the filter at the top) shows which. 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 2021 Acura TLX?
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 2021 Acura TLX 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 2021 Acura TLX?
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 2021 Acura TLX
Drivetrain Parts for Other Acura TLX Years
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