Audi A4/A6/S4, Volkswagen Passat Mechanical Fan Clutch 078121350A
OEM Part #: 078-121-350-A (078121350A)
This page covers one exact OEM part number. Every unit we stocked has sold.
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Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
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Audi OEM part number 078121350A, this is a used mechanical fan clutch originally removed from a donor vehicle. It also replaces the earlier number 078121350. This fan clutch engages the engine-driven cooling fan to pull air through the radiator when the engine reaches operating temperature, helping prevent overheating in stop-and-go traffic or at low speeds. It is specific to 2.7L and 2.8L V6 engines found in Audi A4, A6, S4, and Volkswagen Passat models.
Specifications
| Fits Vehicle Model | A4, A6, Passat, S4 |
| Fits Vehicle Make | Audi, Volkswagen |
| OEM Part No | 078-121-350-A (078121350A) |
| Compatible OEM Part No | 078-121-350 |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 66 vehicle configurations across 2 makes, 1996-2005.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 66 vehicle configurations — 23 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1996 | Audi | A4 | Sedan | 2.8L V6 | |
| 1996 | Audi | A4 | Quattro Sedan | 2.8L V6 | |
| 1997 | Audi | A4 | Sedan | 2.8L V6 | |
| 1997 | Audi | A4 | Quattro Sedan | 2.8L V6 | |
| 1998 | Audi | A4 | Wagon | 2.8L V6 | |
| 1998 | Audi | A4 | Sedan | 2.8L V6 | |
| 1998 | Audi | A4 | Quattro Wagon | 2.8L V6 | |
| 1998 | Audi | A4 | Quattro Sedan | 2.8L V6 | |
| 1998 | Audi | A6 | Sedan | 2.8L V6 | |
| 1998 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 1999 | Audi | A4 | Sedan | 2.8L V6 | |
| 1999 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 1999 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 1999 | Audi | A6 | Sedan | 2.8L V6 | |
| 1999 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 1999 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2000 | Audi | A4 | Sedan | 2.8L V6 | |
| 2000 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2000 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2000 | Audi | A6 | Sedan | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2000 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2000 | Audi | S4 | Sedan | 2.7L V6 Turbo | For Vehicles with Engine Code(s) APB |
| 2001 | Audi | A4 | Sedan | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2001 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2001 | Audi | A6 | Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2001 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2001 | Audi | S4 | Wagon | 2.7L V6 Turbo | For Vehicles with Engine Code(s) APB |
| 2001 | Audi | S4 | Sedan | 2.7L V6 Turbo | For Vehicles with Engine Code(s) APB |
| 2002 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2002 | Audi | S4 | Wagon | 2.7L V6 Turbo | For Vehicles with Engine Code(s) APB |
| 2002 | Audi | S4 | Sedan | 2.7L V6 Turbo | For Vehicles with Engine Code(s) APB |
| 2003 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2004 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 1998 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 1998 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 1999 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 1999 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2000 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2000 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2000 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2000 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2001 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2001 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2001 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2001 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2002 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2002 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2002 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2002 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2003 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2003 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2003 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2003 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2004 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2004 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2004 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2004 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2005 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2005 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2005 | Volkswagen | Passat | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |
| 2005 | Volkswagen | Passat | Wagon | 2.8L V6 | For Vehicles with Engine Code(s) ATQ |