2002-2006 Audi A4 Thermostat Housing 06B121111K
OEM Part #: 06B-121-111-K (06B121111K)
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The exact part you’ll receive — not a stock photo.
$11.99
Used
Donor2004 Audi A4 · 1.8
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Genuine OEM Used
SKU: 250586
Donor Vehicle: 2004 Audi A4 · 1.8
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$11.99
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This Audi A4 thermostat housing, OEM part number 06B121111K, is a used genuine unit salvaged from a donor vehicle. It also supersedes 06B121111H, 06B121111G, 06B121111D, and 06B121114D. Designed for the 1.8L 1781CC turbocharged engine (EA113 family), it routes coolant to regulate engine temperature. A failing thermostat housing often causes overheating or visible coolant leaks near the front of the engine.
Specifications
| Fits Vehicle Model | A4 |
| Fits Vehicle Make | Audi |
| OEM Part No | 06B-121-111-K (06B121111K) |
| Compatible OEM Part No | 06B-121-111-H, 06B-121-111-G, 06B-121-111-D, 06B-121-114-D |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 16 vehicle configurations across 1 make, 2002-2006.
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 16 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2005 | Audi | A4 | Convertible | 1.8L l4 Turbo | |
| 2004 | Audi | A4 | Convertible | 1.8L l4 Turbo | |
| 2005 | Audi | A4 | Quattro Wagon | 1.8L l4 Turbo | |
| 2003 | Audi | A4 | Convertible | 1.8L l4 Turbo | |
| 2005 | Audi | A4 | Sedan | 1.8L l4 Turbo | |
| 2002 | Audi | A4 | Quattro Wagon | 1.8L l4 Turbo | |
| 2002 | Audi | A4 | Quattro Sedan | 1.8L l4 Turbo | |
| 2004 | Audi | A4 | Quattro Wagon | 1.8L l4 Turbo | |
| 2002 | Audi | A4 | Sedan | 1.8L l4 Turbo | |
| 2003 | Audi | A4 | Quattro Wagon | 1.8L l4 Turbo | |
| 2003 | Audi | A4 | Sedan | 1.8L l4 Turbo | |
| 2004 | Audi | A4 | Sedan | 1.8L l4 Turbo | |
| 2004 | Audi | A4 | Quattro Sedan | 1.8L l4 Turbo | |
| 2003 | Audi | A4 | Quattro Sedan | 1.8L l4 Turbo | |
| 2005 | Audi | A4 | Quattro Sedan | 1.8L l4 Turbo | |
| 2006 | Audi | A4 | Convertible | 1.8L l4 Turbo |