20 Drivetrain parts are listed for the 2023 Audi A4, in 5 part types, covering the 2.0L L4 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2023 Audi A4, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 15 parts of the 20 listed are CV Axle (7 parts), CV Joint Boot (5 parts) and Drive Shaft (3 parts). The other 2 part types cover the remaining 5 parts.
Every part on this page is matched to the 2.0L L4 Turbocharged — the only engine offered in the 2023 Audi A4.
The most listed brands for 2023 Audi A4 drivetrain parts are GKN (7 parts), VAICO (4 parts) and TIMKEN (2 parts), plus 5 more brands. Quality grades include Standard Replacement and Premium.
2 parts on this 2023 Audi A4 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including TOP NOTCH TN19007PR (CV Axle) and TOP NOTCH TN19007 (CV Axle). Click any part number to see every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN | SL260526 | 🇺🇸 US 🇨🇦 CA | Rear Left | View on Amazon |
| TIMKEN | SL260529 | 🇺🇸 US 🇨🇦 CA | 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.
2 Axle Shaft Seal parts for the 2023 Audi A4 come from TIMKEN.
This group includes TIMKEN SL260526 and TIMKEN SL260529.
CV Axle
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOP NOTCH Popular | TN19007PR | 🇺🇸 US 🇨🇦 CA | Performance | View on Amazon |
| GSP | PR23011 | 🇺🇸 US 🇨🇦 CA | Performance Revolution | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOP NOTCH Popular | TN19007 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| GKN | GKND12163 | 🇺🇸 US 🇨🇦 CA | Outboard Joint Type: Fix Ball Joint GKN SX | View on Amazon |
| GSP | NCV23011 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| TRAKMOTIVE | AD8173 | 🇲🇽 MX | Rear | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | GKND12939 | 🇺🇸 US 🇨🇦 CA | Outboard Joint Type: Fix Ball Joint SX | 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 for the 2023 Audi A4 come from 4 brands — TOP NOTCH, GSP, GKN and 1 other brand. The "Popular" part is TOP NOTCH TN19007PR.
In the Premium grade, TOP NOTCH and GSP supply 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is TOP NOTCH TN19007PR.
In the Standard Replacement grade, TOP NOTCH, GKN, GSP and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is TOP NOTCH TN19007.
1 further part sits outside the graded sections, with the same engine-level match.
Part numbers include TOP NOTCH TN19007PR, GSP PR23011 and TOP NOTCH TN19007, among others listed above.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1032892 | 🇺🇸 US 🇨🇦 CA | Front Outer | View on Amazon |
| GKN | 306619 | 🇺🇸 US 🇨🇦 CA | Thermoplastic ElastomerThermosplastic Elastomer (TPE) | View on Amazon |
| GKN | 306313 | 🇺🇸 US 🇨🇦 CA | OUTER Diameter 1.023 InThermoplastic Elastomer | View on Amazon |
| GKN | 306188 | 🇺🇸 US 🇨🇦 CA | OUTER Diameter 1.063 InThermoplastic Elastomer | View on Amazon |
| REIN | BKN0109 | 🇺🇸 US 🇨🇦 CA | Front Outer | 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.
5 CV Joint Boot parts for the 2023 Audi A4 come from 3 brands — GKN, BECK/ARNLEY and REIN.
Part numbers include BECK/ARNLEY 1032892, GKN 306619 and GKN 306313, among others listed above.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | GKNP20085 | 🇺🇸 US 🇨🇦 CA | RearBasic Rear Differential | View on Amazon |
| GKN | GKNP20091 | 🇺🇸 US 🇨🇦 CA | Rearwith uncoupling rear differential | View on Amazon |
| VAICO | V107729 | 🇺🇸 US 🇨🇦 CA | Fits Length: 463From 06/27/2022 | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
3 Drive Shaft parts are listed for the 2023 Audi A4, from GKN and VAICO.
Part numbers include GKN GKNP20085, GKN GKNP20091 and VAICO V107729.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO | V600430 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transfer Case Oil DTF-1 L | View on Amazon |
| VAICO | V600431 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: AMTransfer Case Fluid, DTF-1 - 5 Liter | View on Amazon |
| VAICO | V600432 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: OEMTransfer Case Oil DTF-1-20 L | 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.
3 Transfer Case Fluid parts for the 2023 Audi A4 come from VAICO.
This group includes VAICO V600430, VAICO V600431 and VAICO V600432.
Buying Drivetrain Parts for a 2023 Audi A4
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 2.0L L4 Turbocharged 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 Joint Boot .
Frequently Asked Questions
How many drivetrain parts fit the 2023 Audi A4?
Our catalog currently lists 20 drivetrain parts for the 2023 Audi A4 across 5 subcategories and 8 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2023 Audi A4?
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 2023 Audi A4 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 2023 Audi A4?
Every part on this page is matched to the 2.0L L4 Turbocharged 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 2023 Audi A4
Drivetrain Parts for Other Audi A4 Years
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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.