52 Drivetrain parts are listed for the 2018 Audi S6, in 9 part types, covering the 4.0L V8 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2018 Audi S6, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 35 parts of the 52 listed are CV Axle (18 parts), CV Joint Boot (9 parts) and Gear Oil (8 parts). The other 6 part types cover the remaining 17 parts.
Every part on this page is matched to the 4.0L V8 Turbocharged — the only engine offered in the 2018 Audi S6.
The most listed brands for 2018 Audi S6 drivetrain parts are GSP (9 parts), TOP NOTCH (8 parts) and VALVOLINE (8 parts), plus 12 more brands. Quality grades include Standard Replacement and Premium.
10 parts on this 2018 Audi S6 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including TOP NOTCH TN19013PR (CV Axle) and BECK/ARNLEY 1033141 (CV Joint Boot). Click any part number to see every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN | SL260495 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RearS6 | View on Amazon |
| TIMKEN | SL260502 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RearS6 | 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 2018 Audi S6 come from TIMKEN.
This group includes TIMKEN SL260495 and TIMKEN SL260502.
CV Axle
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOP NOTCH Popular | TN19013PR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance | View on Amazon |
| GSP | PR23019 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance Revolution | View on Amazon |
| GSP | PR23017 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance Revolution | View on Amazon |
| GSP | PR23020 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance Revolution | View on Amazon |
| GSP | PR23008 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance Revolution | View on Amazon |
| TOP NOTCH | TN19011PR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance | View on Amazon |
| TOP NOTCH | TN19014PR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance | View on Amazon |
| TOP NOTCH | TN19005PR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Performance | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APWI Popular | AD8374 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| TOP NOTCH Popular | TN19013 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| TRAKMOTIVE Popular | AD8162 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| CARDONE | 667483 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear Leftwithout Sport Differential | View on Amazon |
| GSP | NCV23019 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| GSP | NCV23017 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Rightwith Sport Differential | View on Amazon |
| GSP | NCV23020 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Leftwith Sport Differential | View on Amazon |
| GSP | NCV23008 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rearwithout Sport Differential | View on Amazon |
| TOP NOTCH | TN19014 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Leftwith Sport Differential | View on Amazon |
| TOP NOTCH | TN19005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rearwithout Sport Differential | 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.
18 CV Axle parts for the 2018 Audi S6 come from 5 brands — GSP, TOP NOTCH, APWI and 2 other brands. The "Popular" part is TOP NOTCH TN19013PR.
In the Premium grade, TOP NOTCH and GSP supply 8 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is TOP NOTCH TN19013PR.
In the Standard Replacement grade, GSP, TOP NOTCH, APWI and 2 other brands supply 10 parts: built to original-equipment specification. A representative part number is APWI AD8374.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | 306661 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermosplastic Elastomer (TPE) | View on Amazon |
| MARELLI | TDS0420 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
2 CV Joint parts for the 2018 Audi S6 come from 2 brands — GKN and MARELLI.
Listed part numbers: GKN 306661 and MARELLI TDS0420.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 1033141 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Outer | View on Amazon |
| REIN Popular | BKN0124 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Inner | View on Amazon |
| BECK/ARNLEY | 1032978 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Inner | View on Amazon |
| BECK/ARNLEY | 1033043 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Inner | View on Amazon |
| GKN | 304936 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Does Not contain CapThermoplastic Elastomer | View on Amazon |
| GKN | 306313 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.023 InThermoplastic Elastomer | View on Amazon |
| REIN | BKN0170 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Inner | View on Amazon |
| VAICO | V105635 | 🇺🇸 US | Front OuterGrade: AM | View on Amazon |
| VAICO | V105633 | 🇺🇸 US | Front InnerGrade: AM | 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.
9 CV Joint Boot parts for the 2018 Audi S6 come from 4 brands — BECK/ARNLEY, REIN, GKN and 1 other brand. The "Popular" part is BECK/ARNLEY 1033141.
Listed part numbers: BECK/ARNLEY 1033141, REIN BKN0124 and BECK/ARNLEY 1032978, plus the other parts above.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN | SL260602 | 🇺🇸 US | RearExc. Active Differential | 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.
This group shows a single part: TIMKEN SL260602.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 852090 | 🇨🇦 CA 🇲🇽 MX | Material: ACM (Polyacrylate)Radial Shaft Seal Design: A/BS2 | View on Amazon |
| ELRING | 876330 | 🇨🇦 CA 🇲🇽 MX | Height [MM]: 11Material: ACM (Polyacrylate) | View on Amazon |
This table covers the seals at the Differential. 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.
ELRING supplies both parts for the 2018 Audi S6.
Part numbers include ELRING 852090 and ELRING 876330.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 986455 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length: 63.5" | View on Amazon |
| GKN Popular | GKNP20058 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GSP | PS900581 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear2 Piece Shaft | View on Amazon |
| TOP NOTCH | TN2316PS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear2 Piece Shaft | View on Amazon |
| VAICO | V107638 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | External Toothing wheel side: 42Right Rear | View on Amazon |
| VAICO | V107637 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | External Toothing wheel side: 42Left Rear | View on Amazon |
| WJB / INMOTION PARTS | WDS86455 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
7 Drive Shaft parts are listed for the 2018 Audi S6, from VAICO, DORMAN, GKN and 3 other brands. DORMAN 986455 carries the "Popular" badge.
This group includes DORMAN 986455, GKN GKNP20058 and GSP PS900581 and the remaining parts above.
Gear Oil
SAE 75W-140
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | VV982 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Quart | View on Amazon |
| VALVOLINE | 889787 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-14 0 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE | 887344 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE | VV981 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-14 0 Gear Oil5 Gallon | View on Amazon |
SAE 75W-90
| 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 | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | 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 |
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 for the 2018 Audi S6 come from VALVOLINE. The "Popular" part is VALVOLINE VV982.
The SAE 75W-140 section lists 4 options from VALVOLINE — grouped under the catalog's "SAE 75W-140" designation — the notes column spells out what sets them apart. VALVOLINE VV982 is listed in this group.
The SAE 75W-90 section lists 4 options from VALVOLINE — grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. VALVOLINE VV975 is listed in this group.
Part numbers include VALVOLINE VV982, VALVOLINE 889787 and VALVOLINE 887344, among others listed above.
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 2018 Audi S6 come from VAICO.
Part numbers include VAICO V600430, VAICO V600431 and VAICO V600432.
Buying Drivetrain Parts for a 2018 Audi S6
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 4.0L V8 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 2018 Audi S6?
Our catalog currently lists 52 drivetrain parts for the 2018 Audi S6 across 9 subcategories and 15 brands, covering the 4.0L V8 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2018 Audi S6?
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 S6 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 S6?
Every part on this page is matched to the 4.0L V8 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 S6
Drivetrain Parts for Other Audi S6 Years
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