32 Drivetrain parts are listed for the 2020 Audi A8, in 7 part types, covering all 3 engine options (3.0L V6 ELECTRIC/GAS Turbocharged, 3.0L V6 Turbocharged and 4.0L V8 Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2020 Audi A8, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 23 parts of the 32 listed are Drive Shaft (8 parts), Gear Oil (8 parts) and Transfer Case Fluid (7 parts). The other 4 part types cover the remaining 9 parts.
The 2020 Audi A8 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
7 brands supply drivetrain parts for the 2020 Audi A8, led by GKN (12 parts), VALVOLINE (12 parts) and VAICO (4 parts), plus 4 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Audi A8. 5 parts have it, including BECK/ARNLEY 1033141 (CV Joint Boot) and VALVOLINE VV982 (Gear Oil). Each part number opens a page with every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | SL260517 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | 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.
One part is listed for the 2020 Audi A8 — TIMKEN SL260517.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | GKND12332 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Outboard Joint Type: Fix Ball Joint GKN 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.
One part is listed for the 2020 Audi A8 — GKN GKND12332.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 306277 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pre-lubricatedThermosplastic Elastomer (TPE) | View on Amazon |
| GKN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 306278 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 3.701 In | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
GKN supplies both parts for the 2020 Audi A8.
Part numbers include GKN 306277 and GKN 306278.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 1033141 | 🇺🇸 US 🇨🇦 CA | Front Outer | View on Amazon |
| GKN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 306177 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.220 InThermoplastic Elastomer | View on Amazon |
| GKN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 306188 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.063 InThermoplastic Elastomer | View on Amazon |
| REIN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | BKN0109 | 🇺🇸 US 🇨🇦 CA | Front Outer | View on Amazon |
| VAICO Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | V105635 | 🇺🇸 US 🇨🇦 CA | Front OuterGrade: 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.
5 CV Joint Boot parts are listed for the 2020 Audi A8, from GKN, BECK/ARNLEY, REIN and 1 other brand. BECK/ARNLEY 1033141 carries the "Popular" badge.
Part numbers include BECK/ARNLEY 1033141, GKN 306177 and GKN 306188, among others listed above.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: 3.0L V6 Turbocharged | GKNP20138 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Compressed Length: 65.236 InShaft Material: Two-piece Propellershaft fitted with CV Joints and holding frame | View on Amazon |
| GKN Fits: 3.0L V6 Turbocharged | GKNP20144 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Compressed Length: 60.118 InShaft Material: Two-piece Propellershaft fitted with CV Joints and holding frame | View on Amazon |
| GKN Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | GKNP20212 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Compressed Length: 67.599 InShaft Material: Two-piece Propellershaft fitted with CV Joints, included holding frame and intermediate bearing | View on Amazon |
| GKN Fits: 4.0L V8 Turbocharged | GKNP20101 | 🇺🇸 US 🇨🇦 CA | Compressed Length: 71.142 InShaft Material: Two-piece Propellershaft fitted with CV Joints, included holding frame and intermediate bearing | View on Amazon |
| GKN Fits: 4.0L V8 Turbocharged | GKNP20120 | 🇺🇸 US 🇨🇦 CA | Compressed Length: 71.181 InShaft Material: Two-piece Propellershaft fitted with CV Joints and holding frame | View on Amazon |
| GKN Fits: 4.0L V8 Turbocharged | GKNP20137 | 🇺🇸 US 🇨🇦 CA | Length 1847mm | View on Amazon |
| GKN Fits: 4.0L V8 Turbocharged | GKNP20157 | 🇺🇸 US 🇨🇦 CA | Compressed Length: 66.062 InShaft Material: Two-piece Propellershaft fitted with CV Joints and holding frame | View on Amazon |
| TRAKMOTIVE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | ADP003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
8 Drive Shaft parts for the 2020 Audi A8 come from 2 brands — GKN and TRAKMOTIVE.
This group includes GKN GKNP20138, GKN GKNP20144 and GKN GKNP20212 and the remaining parts above.
Gear Oil
SAE 75W-140
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | VV982 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 889787 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-14 0 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 887344 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 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 Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | VV975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 882505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 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.
VALVOLINE supplies the 8 Gear Oil parts for the 2020 Audi A8. VALVOLINE VV982 carries the "Popular" badge.
In the SAE 75W-140 grade, VALVOLINE supplies 4 parts: grouped under the catalog's "SAE 75W-140" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV982.
In the SAE 75W-90 grade, VALVOLINE supplies 4 parts: grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV975.
Part numbers include VALVOLINE VV982, VALVOLINE 889787 and VALVOLINE 887344, among others listed above.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | VV975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VAICO Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | V600430 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transfer Case Oil DTF-1 L | View on Amazon |
| VAICO Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | V600431 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: AMTransfer Case Fluid, DTF-1 - 5 Liter | View on Amazon |
| VAICO Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | V600432 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: OEMTransfer Case Oil DTF-1-20 L | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 882505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 3.0L V6 Turbocharged, 4.0L V8 Turbocharged | 723856 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | 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.
7 Transfer Case Fluid parts are listed for the 2020 Audi A8, from VALVOLINE and VAICO. VALVOLINE VV975 carries the "Popular" badge.
This group includes VALVOLINE VV975, VALVOLINE 889785 and VAICO V600430 and the remaining parts above.
Buying Drivetrain Parts for a 2020 Audi A8
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. Every drivetrain part here is 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: Drive Shaft and Gear Oil .
Frequently Asked Questions
How many drivetrain parts fit the 2020 Audi A8?
Our catalog currently lists 32 drivetrain parts for the 2020 Audi A8 across 7 subcategories and 7 brands, covering all 3 engine options (3.0L V6 ELECTRIC/GAS Turbocharged, 3.0L V6 Turbocharged and 4.0L V8 Turbocharged). Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2020 Audi A8 engines?
Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 2020 Audi A8?
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 2020 Audi A8 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 2020 Audi A8?
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 2020 Audi A8
Drivetrain Parts for Other Audi A8 Years
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