This page lists 48 drivetrain parts for the 2018 Audi RS3, across 10 part types, covering the 2.5L L5 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 2018 Audi RS3 moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Transfer Case Fluid (9 parts), Gear Oil (8 parts) and AWD Coupling Oil Pump (7 parts). The other 7 part types cover the remaining 24 parts.
The 2018 Audi RS3 came with a single engine, the 2.5L L5 Turbocharged, and every part is verified against it.
10 brands supply drivetrain parts for the 2018 Audi RS3, led by VALVOLINE (14 parts), VAICO (13 parts) and GKN (6 parts), plus 7 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Audi RS3. 9 parts have it, including VAICO V106603XXL (AWD Coupling Oil Pump) and APWI AD8383 (CV Axle). Each part number opens a page with every vehicle that part fits.
AWD Coupling Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | FLDF003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Haldex850 ml | View on Amazon |
| VAICO | V600450 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Differential Oil, 850 ML | View on Amazon |
This table covers the AWD Coupling fluids. 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.
2 AWD Coupling Fluid parts are listed for the 2018 Audi RS3, from REIN and VAICO.
Part numbers include REIN FLDF003 and VAICO V600450.
AWD Coupling Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO | V106662 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the AWD Coupling Oil filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
One part is listed for the 2018 Audi RS3 — VAICO V106662.
AWD Coupling Oil Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Popular | V106603XXL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 850mlTransmission Code: KJU, KMD, KMC, MMK, JJN, JUY, MML | View on Amazon |
| VAICO Popular | V106592 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| VAICO | V106603 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Oil drain plugs | View on Amazon |
| VAICO | V105600 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Haldex Oil850ml | View on Amazon |
| VAICO | V106827 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Pump, Oil drain plugs, Complete Kit | View on Amazon |
| VAICO | V106826 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Complete KitIncludes: Pump, Oil, Screws | View on Amazon |
| VAICO | V105600XXL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Hydraulic Filter, Hydraulic Oil, Drain Plugs, Seal Ring, Gasket-Set | View on Amazon |
This table covers the AWD Coupling Oil pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.
VAICO supplies the 7 AWD Coupling Oil Pump parts for the 2018 Audi RS3. VAICO V106603XXL carries the "Popular" badge.
This group includes VAICO V106603XXL, VAICO V106592 and VAICO V106603 and the remaining parts above.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APWI Popular | AD8383 | 🇺🇸 US | Front Right | View on Amazon |
| GSP Popular | NCV23046 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| GKN | 305771 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Front RightLength 603 mm | View on Amazon |
| TOP NOTCH | TN19034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| TRAKMOTIVE | AD86010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE | AD86013 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| TRAKMOTIVE | AD86015 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | 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 2018 Audi RS3, from TRAKMOTIVE, APWI, GSP and 2 other brands. APWI AD8383 carries the "Popular" badge.
Part numbers include APWI AD8383, GSP NCV23046 and GKN 305771, among others listed above.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Popular | 302261 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pre-lubricated | View on Amazon |
| GKN | 305448 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pre-lubricatedThermosplastic Elastomer (TPE) | View on Amazon |
| MARELLI | TIJ0010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| MARELLI | TOJ0312 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| VAICO | V106922 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right Inner | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
5 CV Joint parts are listed for the 2018 Audi RS3, from GKN, MARELLI and VAICO. GKN 302261 carries the "Popular" badge.
This group includes GKN 302261, GKN 305448 and MARELLI TIJ0010 and the remaining parts above.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | 305967 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length: 123 mmThermoplastic Elastomer | View on Amazon |
| GKN | 304203 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermoplastic ElastomerThermosplastic Elastomer (TPE) | View on Amazon |
| GKN | 306237 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.063 InThermoplastic Elastomer | View on Amazon |
| REIN | BKN0027R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear 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.
4 CV Joint Boot parts are listed for the 2018 Audi RS3, from GKN and REIN.
This group includes GKN 305967, GKN 304203 and GKN 306237 and the remaining parts above.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP | PS900584 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear2 Piece Shaft | View on Amazon |
| GSP | PS901920 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear2191 (mm) Length | View on Amazon |
| TOP NOTCH | TN2337PS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear2 Piece Shaft | View on Amazon |
| TOP NOTCH | TN2341PS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear2191 (mm) Length | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
4 Drive Shaft parts for the 2018 Audi RS3 come from 2 brands — GSP and TOP NOTCH.
This group includes GSP PS900584, GSP PS901920 and TOP NOTCH TN2337PS and the remaining parts above.
Gear Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | VV975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Popular | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VAICO | V600364 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 850MLTransmission code : JJN, JUY, KJU, KMC, KMD, MMK, MML | View on Amazon |
| VALVOLINE | 882505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE | 723856 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE | 819195 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE | 902146 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Protection Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE | 904644 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | 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.
8 Gear Oil parts are listed for the 2018 Audi RS3, from VALVOLINE and VAICO. VALVOLINE VV975 carries the "Popular" badge.
Listed part numbers: VALVOLINE VV975, VALVOLINE 889785 and VAICO V600364, plus the other parts above.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | VV975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Popular | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VAICO | V10000270 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Description: Differential Fluid Change KitIncludes: Hydraulic Oil, Drain Plugs and Seal Rings | View on Amazon |
| VAICO | V10000270XXL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Description: Differential Fluid Change KitIncludes: Hydraulic Oil, Hydraulic Filter, Drain Plugs, Seal Rings and Installation Hardware | View on Amazon |
| VALVOLINE | 882505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE | 723856 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE | 819195 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE | 902146 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Protection Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE | 904644 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
9 Transfer Case Fluid parts are listed for the 2018 Audi RS3, from VALVOLINE and VAICO. VALVOLINE VV975 carries the "Popular" badge.
Part numbers include VALVOLINE VV975, VALVOLINE 889785 and VAICO V10000270, among others listed above.
Transfer Case Output Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN | SL260505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | 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 2018 Audi RS3 — TIMKEN SL260505.
Buying Drivetrain Parts for a 2018 Audi RS3
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 2.5L L5 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: Transfer Case Fluid and Gear Oil .
Frequently Asked Questions
How many drivetrain parts fit the 2018 Audi RS3?
Our catalog currently lists 48 drivetrain parts for the 2018 Audi RS3 across 10 subcategories and 10 brands, covering the 2.5L L5 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2018 Audi RS3?
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 2018 Audi RS3 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 2018 Audi RS3?
Every part on this page is matched to the 2.5L L5 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 2018 Audi RS3
Drivetrain Parts for Other Audi RS3 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.