The 2021 Audi A4 has 34 automatic transmission parts with verified fitment on this page — 11 part types and 8 brands, covering both the 2.0L L4 ELECTRIC/GAS Turbocharged and the 2.0L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2021 Audi A4, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. 18 parts of the 34 listed are Filter (9 parts), Transmission Fluid Additive (5 parts) and Transmission Fluid (4 parts). The other 8 part types cover the remaining 16 parts.
The 2021 Audi A4 was sold with both the 2.0L L4 ELECTRIC/GAS Turbocharged and the 2.0L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Audi A4 automatic transmission parts are VAICO (12 parts), ELRING (7 parts) and LUBEGARD (7 parts), plus 5 more brands. Quality grades include Standard Replacement, Expert Kit and Basic Kit.
3 parts on this 2021 Audi A4 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including BECK/ARNLEY 0440451 (Filter) and LUBEGARD 63010 (Transmission Fluid Additive). Click any part number to see every vehicle that part fits.
Filter
Basic Kit (Without Transmission Fluid)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 2.0L L4 Turbocharged | V105390BEK | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Hydraulic Filter, Transmission Oil Pan Gasket, Magnets, Oil Pan Bolts, Drain Plugs, Oil Pipe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular Fits: 2.0L L4 Turbocharged | 0440451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 QuattroHigh Pressure Filter | View on Amazon |
| BECK/ARNLEY Popular Fits: 2.0L L4 Turbocharged | 0440453 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 QuattroLow Pressure Filter | View on Amazon |
| BECK/ARNLEY Fits: 2.0L L4 Turbocharged | 0440442 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 QuattroSuction | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V105393 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 Quattro | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V105395 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 QuattroFrom 2019 | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V105394 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 Quattro | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V105391 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Hydraulic Filter with Seal-Rings, Oil Pan Gasket | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP Fits: 2.0L L4 ELECTRIC/GAS Turbocharged | B205 | 🇺🇸 US 🇨🇦 CA | Premium Replacement | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. 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.
9 Filter parts for the 2021 Audi A4 come from 3 brands — VAICO, BECK/ARNLEY and ATP. The "Popular" part is BECK/ARNLEY 0440451.
In the Basic Kit (Without Transmission Fluid) grade, VAICO supplies 1 part: grouped under the catalog's "Basic Kit (Without Transmission Fluid)" designation — the notes column spells out what sets them apart. A representative part number is VAICO V105390BEK.
In the Standard Replacement grade, VAICO and BECK/ARNLEY supply 7 parts: built to original-equipment specification. A representative part number is BECK/ARNLEY 0440451.
1 further part sits outside the graded sections, with the same engine-level match.
This group includes BECK/ARNLEY 0440451, VAICO V105390BEK and BECK/ARNLEY 0440453 and the remaining parts above.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HENGST Fits: 2.0L L4 Turbocharged | HG104HD835 | 🇲🇽 MX | A4 Base Model | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V104360 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 Quattro | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V104350 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | From 04/30/2020 | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
3 Fluid Pan parts are listed for the 2021 Audi A4, from VAICO and HENGST.
Part numbers include HENGST HG104HD835, VAICO V104360 and VAICO V104350.
Fluid Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 2.0L L4 Turbocharged | 478560 | 🇨🇦 CA | Body code: B9Engine Code DMSA | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 890350 | 🇨🇦 CA | Body code: B9Engine Code DMSA | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V105396 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A4 Quattro | View on Amazon |
This table covers the gaskets that seal the Fluid Pan. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
3 Fluid Pan Gasket parts for the 2021 Audi A4 come from 2 brands — ELRING and VAICO.
This group includes ELRING 478560, ELRING 890350 and VAICO V105396.
Gasket Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 2.0L L4 Turbocharged | B51000 | 🇨🇦 CA | Body code: B9Engine Code DMSA | View on Amazon |
This table covers the gasket kits for this job. Typical signs include the leaks that sent this assembly to the bench. Confirm the kit matches the opening you are sealing; unused leftover pieces often belong to another configuration.
One part is listed for the 2021 Audi A4 — ELRING B51000.
Input Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 2.0L L4 Turbocharged | 846260 | 🇨🇦 CA | Height [MM]: 5Inner Diameter [MM]: 11,7 | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 852050 | 🇨🇦 CA | Height [MM]: 18Inner Diameter [MM]: 46,5 | View on Amazon |
This table covers the seals at the Input 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.
ELRING supplies both parts for the 2021 Audi A4.
This group includes ELRING 846260 and ELRING 852050.
O-Rings & Seals
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 2.0L L4 Turbocharged | 876520 | 🇨🇦 CA | Body code: B9Engine Code DMSA | View on Amazon |
This table covers the O-rings and seals at this joint.
One part is listed for the 2021 Audi A4 — ELRING 876520.
Side Cover Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 2.0L L4 Turbocharged | 215220 | 🇨🇦 CA | Body code: B9Engine Code DMSA | View on Amazon |
This table covers the seals at the Side Cover. 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 A4 — ELRING 215220.
Transmission Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Fits: 2.0L L4 Turbocharged | 56032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Complete Multi-Vehicle Dual Clutch Transmission Fluid for Wet Clutch AP1 Quart. | View on Amazon |
| LUBEGARD Fits: 2.0L L4 Turbocharged | 56125 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Complete Multi-Vehicle Dual Clutch Transmission Fluid for Wet Clutch AP5 Quart. | View on Amazon |
| PENTOSIN Fits: 2.0L L4 Turbocharged | 1070107 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | FFL525291 Liter | View on Amazon |
| PENTOSIN Fits: 2.0L L4 Turbocharged | 1070207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | FFL525295 Liters | View on Amazon |
This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.
4 Transmission Fluid parts for the 2021 Audi A4 come from 2 brands — LUBEGARD and PENTOSIN.
Listed part numbers: LUBEGARD 56032, LUBEGARD 56125 and PENTOSIN 1070107, plus the other parts above.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: 2.0L L4 Turbocharged | 63010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant10 oz | View on Amazon |
| LUBEGARD Fits: 2.0L L4 Turbocharged | 63016 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant15 oz | View on Amazon |
| LUBEGARD Fits: 2.0L L4 Turbocharged | 63032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant32 oz | View on Amazon |
| LUBEGARD Fits: 2.0L L4 Turbocharged | 63015 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant5 Gallon | View on Amazon |
| LUBEGARD Fits: 2.0L L4 Turbocharged | 63055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Universal ATF Protectant55 Gallon | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
5 Transmission Fluid Additive parts for the 2021 Audi A4 come from LUBEGARD. The "Popular" part is LUBEGARD 63010.
This group includes LUBEGARD 63010, LUBEGARD 63016 and LUBEGARD 63032 and the remaining parts above.
Transmission Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 2.0L L4 Turbocharged | 10351 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear PositionAutomatic Dual Clutch Mount | View on Amazon |
This table covers the mounts that hold the transmission to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
One part is listed for the 2021 Audi A4 — ANCHOR 10351.
Transmission Service Kit
Expert Kit (Basic Kit & Transmission Fluid)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 2.0L L4 Turbocharged | V105390SP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Description: Drain Plugs, Transmission Oil (DCG II 4 ltr)Includes: Automatic Transmission Oil Drain Plugs | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V105390 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Description: Cartridge Filter with Seals, Sump Filter, Oil Pan Gasket, Oil (DCG II 6 ltr), Installation HardwareIncludes: Filters, Oil Pan Gasket, magnets, Screws, Oil | View on Amazon |
| VAICO Fits: 2.0L L4 Turbocharged | V109347 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes G 052 549 A2, WHT 009 043 | View on Amazon |
Expert Kit + (Expert Kit and Extra Oil for Rinsing)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 2.0L L4 Turbocharged | V105390XXL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Description: Cartridge Filter with Seals, Sump Filter, Oil Pan Gasket, Oil (DCG II 9 ltr), Installation HardwareIncludes: Hydraulic Filters, Oil Pan Gasket, Magnets, Oil Pan Bolts, Drain Plugs, Oil Pipe, Transmission Oil | View on Amazon |
This table covers the Transmission service kits.
VAICO supplies the 4 Transmission Service Kit parts for the 2021 Audi A4.
The Expert Kit (Basic Kit & Transmission Fluid) section lists 3 options from VAICO — grouped under the catalog's "Expert Kit (Basic Kit & Transmission Fluid)" designation — the notes column spells out what sets them apart. VAICO V105390SP is listed in this group.
In the Expert Kit + (Expert Kit and Extra Oil for Rinsing) grade, VAICO supplies 1 part: grouped under the catalog's "Expert Kit + (Expert Kit and Extra Oil for Rinsing)" designation — the notes column spells out what sets them apart. A representative part number is VAICO V105390XXL.
Listed part numbers: VAICO V105390SP, VAICO V105390 and VAICO V109347, plus the other parts above.
Buying Automatic Transmission Parts for a 2021 Audi A4
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Every automatic transmission 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Filter and Transmission Fluid Additive .
Frequently Asked Questions
How many automatic transmission parts fit the 2021 Audi A4?
Our catalog currently lists 34 automatic transmission parts for the 2021 Audi A4 across 11 subcategories and 8 brands, covering both the 2.0L L4 ELECTRIC/GAS Turbocharged and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2021 Audi A4 engines?
Yes. Every automatic transmission 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 automatic transmission problems on a 2021 Audi A4?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
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 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 2021 Audi A4?
First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Audi A4
Automatic Transmission Parts for Other Audi A4 Years
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