2004-2009 Audi S4 Thermostat / Coolant Supply Hose / Line Set 4B3121113A
OEM Part #: 4B3-121-113-A (4B3121113A)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
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:
Other Coolant Hose / Pipe / Line / Radiator Coolant Hose / Thermostat that may fit your vehicle
Auxiliary Radiator Coolant Hose / Line
$12.49
Fits 2005–2009 Audi S4
OEM: 8E0121049AA
Auxiliary Radiator Hose / Line
$11.99
Fits 2004–2009 Audi S4
OEM: 8E0121058
Coolant / Water Hose
$10.49
Fits 2004–2009 Audi A6 / Allroad / S4
OEM: 079121055F
Coolant Hose / Line
$14.19
Fits 2005–2009 Audi S4
OEM: 079121107C
Coolant Hose / Line
$8.99
Fits 2005–2009 Audi A6 / S4
OEM: 079121107
Coolant Pipe / Tube / Line
$34.79
Fits 2005–2009 Audi A6 / S4
OEM: 079121065P
- Genuine OEM — real photos
- 30-day returns on eligible parts
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- Ships from our own indoor warehouse
Specifications
| Fits Vehicle Model | S4 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4B3-121-113-A (4B3121113A) |
| Compatible OEM Part No | 8E0-121-030-A |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 13 vehicle configurations across 1 make, 2004-2009.
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 13 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2004 | Audi | S4 | Wagon | 4.2L V8 | |
| 2004 | Audi | S4 | Sedan | 4.2L V8 | |
| 2005 | Audi | S4 | Wagon | 4.2L V8 | |
| 2005 | Audi | S4 | Sedan | 4.2L V8 | |
| 2006 | Audi | S4 | Wagon | 4.2L V8 | |
| 2006 | Audi | S4 | Sedan | 4.2L V8 | |
| 2007 | Audi | S4 | Wagon | 4.2L V8 | |
| 2007 | Audi | S4 | Sedan | 4.2L V8 | |
| 2007 | Audi | S4 | Convertible | 4.2L V8 | |
| 2008 | Audi | S4 | Wagon | 4.2L V8 | |
| 2008 | Audi | S4 | Sedan | 4.2L V8 | |
| 2008 | Audi | S4 | Convertible | 4.2L V8 | |
| 2009 | Audi | S4 | Convertible | 4.2L V8 |