20 Drivetrain parts are listed for the 2021 Audi A7, in 6 part types, covering all 3 engine options (2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged and 3.0L V6 Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Audi A7, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. Most of the listed parts are Gear Oil (8 parts), CV Axle (3 parts) and CV Joint (3 parts). The other 3 part types cover the remaining 6 parts.
The 2021 Audi A7 was sold with 3 engines. 17 parts fit every engine; the other 3 are engine-specific. Each part shows which engine(s) it fits.
5 brands supply drivetrain parts for the 2021 Audi A7, led by VALVOLINE (8 parts), GKN (7 parts) and VAICO (3 parts), plus 2 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Audi A7. 2 parts have it, including VALVOLINE VV982 (Gear Oil) and VALVOLINE VV975 (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: all 2021 A7 engines | SL260517 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | 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 2021 Audi A7 — TIMKEN SL260517.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: all 2021 A7 engines | GKND12332 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Outboard Joint Type: Fix Ball Joint GKN SX | View on Amazon |
| GKN Fits: 2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged | GKND12333 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Outboard Joint Type: Fix Ball Joint SX | View on Amazon |
| TRAKMOTIVE Fits: all 2021 A7 engines | AD86014 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
3 CV Axle parts are listed for the 2021 Audi A7, from GKN and TRAKMOTIVE. 2 parts fit every engine; the other 1 is engine-specific.
Listed part numbers: GKN GKND12332, GKN GKND12333 and TRAKMOTIVE AD86014.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: all 2021 A7 engines | 306277 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pre-lubricatedThermosplastic Elastomer (TPE) | View on Amazon |
| GKN Fits: 2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged | 306278 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 3.701 In | View on Amazon |
| GKN Fits: all 2021 A7 engines | 306692 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Front Left OuterLength 97 mm | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
GKN supplies the 3 CV Joint parts for the 2021 Audi A7. 2 parts fit every engine; the other 1 is engine-specific.
Listed part numbers: GKN 306277, GKN 306278 and GKN 306692.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: 2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged | 306177 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.220 InThermoplastic Elastomer | View on Amazon |
| GKN Fits: all 2021 A7 engines | 306188 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.063 InThermoplastic Elastomer | 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.
GKN supplies both parts for the 2021 Audi A7. 1 part fits every engine; the other 1 is engine-specific.
Part numbers include GKN 306177 and GKN 306188.
Gear Oil
SAE 75W-140
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2021 A7 engines | VV982 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: all 2021 A7 engines | 889787 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-14 0 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: all 2021 A7 engines | 887344 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2021 A7 engines | 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: all 2021 A7 engines | VV975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: all 2021 A7 engines | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: all 2021 A7 engines | 882505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2021 A7 engines | 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 2021 Audi A7. VALVOLINE VV982 carries the "Popular" badge. All of them fit every engine offered in the 2021 A7.
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.
Listed part numbers: VALVOLINE VV982, VALVOLINE 889787 and VALVOLINE 887344, plus the other parts above.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: all 2021 A7 engines | V600430 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transfer Case Oil DTF-1 L | View on Amazon |
| VAICO Fits: all 2021 A7 engines | V600431 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: AMTransfer Case Fluid, DTF-1 - 5 Liter | View on Amazon |
| VAICO Fits: all 2021 A7 engines | 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.
VAICO supplies the 3 Transfer Case Fluid parts for the 2021 Audi A7. All of them fit every engine offered in the 2021 A7.
This group includes VAICO V600430, VAICO V600431 and VAICO V600432.
Buying Drivetrain Parts for a 2021 Audi A7
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. Some drivetrain parts fit every engine; others are 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: Gear Oil and CV Axle .
Frequently Asked Questions
How many drivetrain parts fit the 2021 Audi A7?
Our catalog currently lists 20 drivetrain parts for the 2021 Audi A7 across 6 subcategories and 5 brands, covering all 3 engine options (2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged and 3.0L V6 Turbocharged). Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2021 Audi A7 engines?
Some do. 17 parts fit every engine; the other 3 are engine-specific. Each row (and the filter at the top) shows which. 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 2021 Audi A7?
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 Audi A7 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 Audi A7?
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 2021 Audi A7
Drivetrain Parts for Other Audi A7 Years
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