This page lists 15 drivetrain parts for the 2021 Acura Ilx, across 5 part types, covering the 2.4L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Acura Ilx, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 12 parts of the 15 listed are CV Axle (7 parts), CV Intermediate Shaft (3 parts) and Axle Shaft Seal (2 parts). The other 2 part types cover the remaining 3 parts.
The 2021 Acura Ilx came with a single engine, the 2.4L L4, and every part is verified against it.
7 brands supply drivetrain parts for the 2021 Acura Ilx, led by TOP NOTCH (3 parts), GSP (3 parts) and TRAKMOTIVE (3 parts), plus 4 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Acura Ilx. 2 parts have it, including TOP NOTCH TN50030 (CV Axle) and TOP NOTCH TN50040 (CV Axle). Each part number opens a page with every vehicle that part fits.
Axle Shaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF | SC0889 | 🇺🇸 US 🇨🇦 CA | 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.
This group shows a single part: SKF SC0889.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF | 16541A | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| WJB / INMOTION PARTS | WS16541A | 🇺🇸 US 🇨🇦 CA | 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.
2 Axle Shaft Seal parts are listed for the 2021 Acura Ilx, from SKF and WJB / INMOTION PARTS.
Listed part numbers: SKF 16541A and WJB / INMOTION PARTS WS16541A.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOP NOTCH Popular | TN50030 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TOP NOTCH Popular | TN50040 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| APWI | HO8593 | 🇺🇸 US | Front Right | View on Amazon |
| GSP | NCV21074 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| GSP | NCV21084 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| TRAKMOTIVE | HO8636 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE | HO8641 | 🇺🇸 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.
7 CV Axle parts are listed for the 2021 Acura Ilx, from TOP NOTCH, GSP, TRAKMOTIVE and 1 other brand. TOP NOTCH TN50030 carries the "Popular" badge.
This group includes TOP NOTCH TN50030, TOP NOTCH TN50040 and APWI HO8593 and the remaining parts above.
CV Intermediate Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP | NEX21001 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TOP NOTCH | TN50096IS | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
| TRAKMOTIVE | HO3517 | 🇺🇸 US 🇨🇦 CA | Front Right | View on Amazon |
This table covers the CV Intermediate shafts.
3 CV Intermediate Shaft parts for the 2021 Acura Ilx come from 3 brands — GSP, TOP NOTCH and TRAKMOTIVE.
This group includes GSP NEX21001, TOP NOTCH TN50096IS and TRAKMOTIVE HO3517.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1033186 | 🇺🇸 US 🇨🇦 CA | Front Outer | View on Amazon |
| BECK/ARNLEY | 1032959 | 🇺🇸 US 🇨🇦 CA | Front Inner | View on Amazon |
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.
BECK/ARNLEY supplies both parts for the 2021 Acura Ilx.
This group includes BECK/ARNLEY 1033186 and BECK/ARNLEY 1032959.
Buying Drivetrain Parts for a 2021 Acura Ilx
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 2.4L L4 engine — every part on this page is matched to it.
- 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 CV Intermediate Shaft .
Frequently Asked Questions
How many drivetrain parts fit the 2021 Acura Ilx?
Our catalog currently lists 15 drivetrain parts for the 2021 Acura Ilx across 5 subcategories and 7 brands, covering the 2.4L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2021 Acura Ilx?
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 Ilx 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 Ilx?
Every part on this page is matched to the 2.4L L4 engine. 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 Ilx
Drivetrain Parts for Other Acura Ilx Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.