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Engine Coolant Reservoir – Front
| Brand | Part # |
|---|
| Volkswagen | 8D0121403L |
| Volkswagen | 3B0121321 |
| Year | Make | Model | Submodel | Engine | Fuel Type | Position | Note |
|---|---|---|---|---|---|---|---|
| 2005 | Audi | Allroad Quattro | Base | 4.2V8 | GAS | Front | |
| 2005 | Volkswagen | Passat | GLS TDI | 2.0L4 | DIESEL | Front | |
| 2005 | Volkswagen | Passat | GL | 1.8L4 | GAS | Front | |
| 2005 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | |
| 2005 | Volkswagen | Passat | GLS 4 Motion | 1.8L4 | GAS | Front | |
| 2005 | Volkswagen | Passat | GLS 4 Motion | 2.8V6 | GAS | Front | |
| 2005 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | |
| 2005 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | |
| 2005 | Volkswagen | Passat | GLX 4 Motion | 2.8V6 | GAS | Front | |
| 2005 | Volkswagen | Passat | GL TDI | 2.0L4 | DIESEL | Front | |
| 2004 | Audi | Allroad Quattro | Base | 4.2V8 | GAS | Front | |
| 2004 | Volkswagen | Passat | GL | 2.8V6 | GAS | Front | |
| 2004 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | |
| 2004 | Volkswagen | Passat | GL | 1.8L4 | GAS | Front | |
| 2004 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | |
| 2004 | Volkswagen | Passat | GL TDI | 2.0L4 | DIESEL | Front | |
| 2004 | Volkswagen | Passat | GLX 4 Motion | 2.8V6 | GAS | Front | |
| 2004 | Volkswagen | Passat | GLS TDI | 2.0L4 | DIESEL | Front | |
| 2004 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | |
| 2004 | Volkswagen | Passat | GLS 4 Motion | 1.8L4 | GAS | Front | |
| 2003 | Audi | RS6 | Base | 4.2V8 | GAS | Front | |
| 2003 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | |
| 2003 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | |
| 2003 | Volkswagen | Passat | GL | 1.8L4 | GAS | Front | |
| 2003 | Volkswagen | Passat | GL | 2.8V6 | GAS | Front | |
| 2003 | Volkswagen | Passat | GLX 4 Motion | 2.8V6 | GAS | Front | |
| 2003 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | |
| 2002 | Audi | S4 | Avant | 2.7V6 | GAS | Front | |
| 2002 | Audi | S4 | Base | 2.7V6 | GAS | Front | |
| 2002 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | |
| 2002 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | |
| 2002 | Volkswagen | Passat | GLS 4 Motion | 2.8V6 | GAS | Front | |
| 2002 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | |
| 2002 | Volkswagen | Passat | GLX 4 Motion | 2.8V6 | GAS | Front | |
| 2001 | Audi | A4 | Base | 2.8V6 | GAS | Front | |
| 2001 | Audi | A4 | Base | 1.8L4 | GAS | Front | |
| 2001 | Audi | A4 Quattro | Base | 2.8V6 | GAS | Front | |
| 2001 | Audi | A4 Quattro | Avant | 2.8V6 | GAS | Front | |
| 2001 | Audi | A4 Quattro | Base | 1.8L4 | GAS | Front | |
| 2001 | Audi | A4 Quattro | Avant | 1.8L4 | GAS | Front | |
| 2001 | Audi | A6 | Base | 2.8V6 | GAS | Front | |
| 2001 | Audi | A6 Quattro | Avant | 2.8V6 | GAS | Front | |
| 2001 | Audi | A6 Quattro | Base | 2.8V6 | GAS | Front | |
| 2001 | Audi | S4 | Avant | 2.7V6 | GAS | Front | |
| 2001 | Audi | S4 | Base | 2.7V6 | GAS | Front | |
| 2001 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | |
| 2001 | Volkswagen | Passat | GLX 4 Motion | 2.8V6 | GAS | Front | |
| 2001 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | |
| 2001 | Volkswagen | Passat | GLS 4 Motion | 2.8V6 | GAS | Front | |
| 2001 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | |
| 2000 | Audi | A4 | Base | 2.8V6 | GAS | Front | |
| 2000 | Audi | A4 | Base | 1.8L4 | GAS | Front | |
| 2000 | Audi | A4 Quattro | Base | 2.8V6 | GAS | Front | |
| 2000 | Audi | A4 Quattro | Avant | 1.8L4 | GAS | Front | |
| 2000 | Audi | A4 Quattro | Avant | 2.8V6 | GAS | Front | |
| 2000 | Audi | A4 Quattro | Base | 1.8L4 | GAS | Front | |
| 2000 | Audi | A6 | Base | 2.8V6 | GAS | Front | |
| 2000 | Audi | A6 Quattro | Base | 2.8V6 | GAS | Front | |
| 2000 | Audi | A6 Quattro | Avant | 2.8V6 | GAS | Front | |
| 2000 | Audi | S4 | Base | 2.7V6 | GAS | Front | |
| 2000 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | L4 1.9L |
| 2000 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | L4 1.9L |
| 2000 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | L4 1.9L |
| 2000 | Volkswagen | Passat | 4 Motion | 2.8V6 | GAS | Front | L4 1.9L |
| 1999 | Audi | A4 | Base | 2.8V6 | GAS | Front | |
| 1999 | Audi | A4 | Base | 1.8L4 | GAS | Front | |
| 1999 | Audi | A4 Quattro | Avant | 2.8V6 | GAS | Front | |
| 1999 | Audi | A4 Quattro | Avant | 1.8L4 | GAS | Front | |
| 1999 | Audi | A4 Quattro | Base | 1.8L4 | GAS | Front | |
| 1999 | Audi | A4 Quattro | Base | 2.8V6 | GAS | Front | |
| 1999 | Audi | A6 | Base | 2.8V6 | GAS | Front | |
| 1999 | Audi | A6 Quattro | Base | 2.8V6 | GAS | Front | |
| 1999 | Audi | A6 Quattro | Avant | 2.8V6 | GAS | Front | |
| 1999 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | L4 1.9L |
| 1999 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | L4 1.9L |
| 1999 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | L4 1.9L |
| 1998 | Audi | A4 | Base | 2.8V6 | GAS | Front | From VIN 8D-W-007 800 |
| 1998 | Audi | A4 | Avant | 2.8V6 | GAS | Front | From VIN 8D-W-007 800 |
| 1998 | Audi | A4 | Base | 1.8L4 | GAS | Front | From VIN 8D-W-007 800 |
| 1998 | Audi | A4 Quattro | Base | 1.8L4 | GAS | Front | From VIN 8D-W-007 800 |
| 1998 | Audi | A4 Quattro | Avant | 2.8V6 | GAS | Front | From VIN 8D-W-007 800 |
| 1998 | Audi | A4 Quattro | Base | 2.8V6 | GAS | Front | From VIN 8D-W-007 800 |
| 1998 | Audi | A6 | Base | 2.8V6 | GAS | Front | From VIN 4B-W-000 001 |
| 1998 | Audi | A6 Quattro | Avant | 2.8V6 | GAS | Front | From VIN 4B-W-000 001 |
| 1998 | Audi | A6 Quattro | Base | 2.8V6 | GAS | Front | From VIN 4B-W-000 001 |
| 1998 | Volkswagen | Passat | GLS | 2.8V6 | GAS | Front | L4 1.9L |
| 1998 | Volkswagen | Passat | GLS | 1.8L4 | GAS | Front | L4 1.9L |
| 1998 | Volkswagen | Passat | GLX | 2.8V6 | GAS | Front | L4 1.9L |
The Dorman – OE Solutions Engine Coolant Reservoir part number 603-703 is a high-quality replacement part suitable for Audi and Volkswagen vehicles. It is compatible with other part numbers 3B0121321 and 8D0121403L.
Crafted from premium materials, this engine coolant reservoir is designed to meet or exceed OEM specifications for a perfect fit and optimal performance. Its sturdy construction ensures durability, and it is engineered to withstand extreme temperature changes and pressure variations.
The engine coolant reservoir 603-703 features a translucent design that allows for easy monitoring of coolant levels, making it easy to identify if the coolant needs topping up. It also comes with a cap and sensor, ensuring that the entire assembly is complete and easy to install.
This part is essential for maintaining the optimal temperature of the engine, preventing overheating and potential damage to the engine. Proper maintenance of the coolant reservoir will improve the lifespan of the engine and ensure that the vehicle performs at its best.
In summary, the Dorman – OE Solutions Engine Coolant Reservoir part number 603-703 is an excellent option for Audi and Volkswagen owners looking to replace their worn-out engine coolant reservoir with a high-quality, reliable and durable replacement part.
When looking for car aftermarket parts, Dorman OE Solutions is known for its dedication to quality, new ideas, and dependability. The company Dorman has been around for a long time, and they have always provided OE-quality parts that meet or beat industry standards. No matter how small the parts are or how complicated the systems are, Dorman OE Solutions has a wide range of products that are designed to keep your car running at its best.
At Newparts.com, we're proud to be an official seller of Dorman OE Solutions parts. In addition to Dorman OE Solutions parts for the engine, transmission, suspension, and electrical systems, we have a huge variety of exterior and interior accessories. It doesn't matter what your vehicle needs; Dorman is dedicated to providing reliable solutions that boost both speed and durability.
One important benefit of shopping at Newparts.com is that we always give customers cheap access to parts that aren't being used. Knowing how expensive it can be to keep cars in good shape and fix them when they break down, we try to offer reasonable prices on all Dorman parts. When you buy from us, you can save a lot of money without losing quality.
Along with having low prices, we put customer satisfaction first by sending all Dorman products out quickly. We understand how important time is when it comes to car repairs, so we work hard to make sure your orders get to you on time. Whether you're changing an old part or adding the newest innovations from Dorman to your car, you can count on us to get your parts to you quickly and easily. Reach out to us via phone. Call us now at 855-505-2886 and our customer service team will help you.
Check out how parts from Dorman OE Solutions can improve your car's speed and dependability. Every time you shop at Newparts.com, you can be sure of getting the best value, quality, and ease of use. Feel good about shopping. Find out why tens of thousands of drivers trust Dorman with all their car needs.
| California Proposition 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
| Cap Included | Yes |
| Cap Type | Spring Loaded Twist |
| Color | White |
| Height | 113 |
| Length | 267.5 |
| Material | Plastic |
| Mounting Brackets Included | Yes |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 3 |
| Package Contents | 1 Coolant Reservoir; 1 Cap |
| Pressurized | Yes |
Delivery Info
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Returns Info
Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.
