2003-2006 Audi TT Coolant / Water Hose (RETURN) 8N0121109A
OEM Part #: 8N0-121-109-A (8N0121109A)
Actual photo
The exact part you’ll receive — not a stock photo.
$11.49
Used
Donor2004 Audi TT · 1.8L
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Genuine OEM Used
SKU: 685578
Donor Vehicle: 2004 Audi TT · 1.8L
2 photos
$11.49
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The Audi TT coolant return hose, OEM part number 8N0121109A, is a used genuine water hose removed from a donor vehicle. This return hose carries coolant back to the engine after it passes through the radiator, and a failure typically causes a visible leak or low coolant warning. Also known as a coolant hose or water hose, it fits the 1.8L 1781CC turbocharged engine.
Specifications
| Fits Vehicle Model | TT |
| Fits Vehicle Make | Audi |
| OEM Part No | 8N0-121-109-A (8N0121109A) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 8 vehicle configurations across 1 make, 2003-2006.
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 8 vehicle configurations — 8 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2006 | Audi | TT | Convertible | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |
| 2005 | Audi | TT | Convertible | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |
| 2003 | Audi | TT | Convertible | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |
| 2004 | Audi | TT | Coupe | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |
| 2003 | Audi | TT | Coupe | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |
| 2005 | Audi | TT | Coupe | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |
| 2006 | Audi | TT | Coupe | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |
| 2004 | Audi | TT | Convertible | 1.8L l4 Turbo | For Automatic Transmission; For Vehicles with Engine Code(s) AWP |