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URO 8D0121403L Engine Coolant Reservoir
| Brand | URO 8D0121403L |
|---|---|
| Fits | Audi and Volkswagen · 34 vehicles |
OE dimensions. Precision-molded for compatibility with original sensors and connections.
Heat-resistant materials. Built to handle engine heat and harsh cooling system conditions.
Factory pressure-tested. Verified for dependable cooling system performance.
Cross-references Dorman - OE Solutions 603-703, Febi-Bilstein 21842 and Genuine 8D0121403L for the same application. See all 12.
Engine Coolant Reservoir for Audi and Volkswagen
This URO engine coolant reservoir is built for direct replacement on select Audi and Volkswagen applications. It is precision-molded to OE dimensions for proper sensor and hose connection fitment, with materials selected to handle engine heat and the demands of the cooling system.
- Direct-fit engine coolant reservoir for OE-style replacement
- Precision-molded to original dimensions for sensor and connection compatibility
- Heat-resistant construction for cooling system service
- Factory pressure-tested for leak verification
- Part number: 8D0121403L
Fitment Details
- Fits 1998-2005 Volkswagen Passat, N/A; level sensor included
- Fits 2003 Audi RS6, N/A; level sensor included
- Fits 2002 Audi A4, N/A; level sensor included; chassis range through 8D-2-010000
- Fits 2002 Audi A4 Quattro, N/A; level sensor included; chassis range through 8D-2-010000
- Fits 1999-2001 Audi A4, N/A; level sensor included
- Fits 1999-2001 Audi A4 Quattro, N/A; level sensor included
- Fits 1999-2001 Audi A6, N/A; level sensor included
- Fits 1999-2001 Audi A6 Quattro, N/A; level sensor included
- Fits 1998 Audi A4, N/A; level sensor included; chassis range from 8D-W-007800
- Fits 1998 Audi A4 Quattro, N/A; level sensor included; chassis range from 8D-W-007800
- Fits 1998 Audi A6, N/A; level sensor included; chassis range from 4B-W-000001
- Fits 1998 Audi A6 Quattro, N/A; level sensor included; chassis range from 4B-W-000001
Common Replacement Uses
- Cracked or brittle coolant reservoir housing
- Coolant leaks from the expansion tank
- Faulty level sensor connection points
- Heat-related plastic deterioration in the cooling system
- Replacement after warning light or low-coolant condition
Installation Notes
Verify chassis range and sensor configuration before installation. Inspect the cap, hoses, and adjacent cooling system components for wear or contamination during replacement. This part cross-references Dorman OE Solutions 603-703 and VAICO V10-0556 for the same application.
Quality Assurance
URO backs this coolant reservoir with a 24 Month Unlimited Mileage Warranty. The reservoir is factory pressure-tested and made to OE dimensions to support proper fitment on Audi A4, Audi A4 Quattro, Audi A6, Audi A6 Quattro, Audi RS6, and Volkswagen Passat applications.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2005 | Volkswagen | Passat | — | — | — | N/A | Level sensor included |
| 2004 | Volkswagen | Passat | — | 2.0L | L4 | N/A | Level sensor included |
| 2004 | Volkswagen | Passat | — | 2.8L | V6 | N/A | Level sensor included |
| 2004 | Volkswagen | Passat | — | 1.8L | L4 | N/A | Level sensor included |
| 2003 | Audi | RS6 | — | — | — | N/A | Level sensor included |
| 2003 | Volkswagen | Passat | — | 2.8L | V6 | N/A | Level sensor included |
| 2003 | Volkswagen | Passat | — | 1.8L | L4 | N/A | Level sensor included |
| 2002 | Audi | A4 | — | 1.8L | L4 | N/A | Level sensor included; Chassis Range: Through 8D-2-010000 |
| 2002 | Audi | A4 Quattro | — | 1.8L | L4 | N/A | Level sensor included; Chassis Range: Through 8D-2-010000 |
| 2002 | Volkswagen | Passat | — | 2.8L | V6 | N/A | Level sensor included |
| 2002 | Volkswagen | Passat | — | 1.8L | L4 | N/A | Level sensor included |
| 2001 | Audi | A4 | — | — | — | N/A | Level sensor included |
| 2001 | Audi | A4 Quattro | — | — | — | N/A | Level sensor included |
| 2001 | Audi | A6 | — | — | — | N/A | Level sensor included |
| 2001 | Audi | A6 Quattro | Avant | — | — | N/A | Level sensor included |
| 2001 | Audi | A6 Quattro | Base | 2.8L | V6 | N/A | Level sensor included |
| 2001 | Volkswagen | Passat | — | — | — | N/A | Level sensor included |
| 2000 | Audi | A4 | — | — | — | N/A | Level sensor included |
| 2000 | Audi | A4 Quattro | — | — | — | N/A | Level sensor included |
| 2000 | Audi | A6 | — | — | — | N/A | Level sensor included |
| 2000 | Audi | A6 Quattro | Avant | — | — | N/A | Level sensor included |
| 2000 | Audi | A6 Quattro | Base | 2.8L | V6 | N/A | Level sensor included |
| 2000 | Volkswagen | Passat | — | — | — | N/A | Level sensor included |
| 1999 | Audi | A4 | — | — | — | N/A | Level sensor included |
| 1999 | Audi | A4 Quattro | — | — | — | N/A | Level sensor included |
| 1999 | Audi | A6 | — | — | — | N/A | Level sensor included |
| 1999 | Audi | A6 Quattro | — | — | — | N/A | Level sensor included |
| 1999 | Volkswagen | Passat | — | — | — | N/A | Level sensor included |
| 1998 | Audi | A4 | — | — | — | N/A | Level sensor included; Chassis Range: From 8D-W-007800 |
| 1998 | Audi | A4 Quattro | — | — | — | N/A | Level sensor included; Chassis Range: From 8D-W-007800 |
| 1998 | Audi | A6 | — | — | — | N/A | Level sensor included; Chassis Range: From # 4B-W-000001 |
| 1998 | Audi | A6 | — | — | — | N/A | Level sensor included; Chassis Range: From 4B-W-000001 |
| 1998 | Audi | A6 Quattro | — | — | — | N/A | Level sensor included; Chassis Range: From 4B-W-000001 |
| 1998 | Volkswagen | Passat | — | — | — | N/A | Level sensor included |
| No rows match your filter. | |||||||