Genuine Audi Reservoir Cap 443121321 OEM Authorized Dealer Factory Original - Audi (443-121-321)
1984-2003 Audi - 443121321
Genuine Audi Reservoir Cap 443121321 OEM Authorized Dealer Factory Original - Audi (443-121-321)
1984-2003 Audi - 443121321
- Audi
- 443-121-321
Details
- Brand:
- SKU:
443-121-321
- Other Names:
Cap, Expansion Tank, Engine Coolant Reservoir Cap, Reservoir Cap, Cover
- Description:
Genuine Audi Reservoir Cap is a genuine Audi OEM coolant expansion tank cap designed to fit a wide range of Audi vehicles, including 4-cylinder, 5-cylinder, 6-cylinder 2.8L, and V8 models in 3.7L and 4.2L configurations spanning the late 1990s through early 2000s. This cap fits specific chassis ranges up to VIN 8D-T-308 000 and 8D-T-309 402, making precise fitment verification essential before purchasing. Also referred to as the expansion tank cap, engine coolant reservoir cap, or coolant system cover, this component maintains the correct pressurization within your cooling system. A properly functioning cap holds the system at the right pressure threshold, raises the coolant's boiling point, and prevents coolant loss — all critical to protecting your engine from overheating. Unlike generic aftermarket alternatives, the Audi OEM Reservoir Cap 443121321 is manufactured to exact factory pressure ratings and seal tolerances, ensuring a secure fit on the reservoir neck without the risk of pressure leaks or premature seal degradation that commonly occur with lower-grade replacements. Sourcing this part as part number 443-121-321 guarantees you receive the same component Audi installs at the factory. Audi Henderson is an authorized Audi dealer, and every genuine OEM part purchased through our store is backed by the manufacturer's warranty for your complete peace of mind.
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov - MSRP: $79.15
- Discount: $27.39 (34.6% off)
- Sale Price: $51.76
- Audi
- 443-121-321
Details
- Brand:
- SKU:
443-121-321
- Other Names:
Cap, Expansion Tank, Engine Coolant Reservoir Cap, Reservoir Cap, Cover
- Description:
Genuine Audi Reservoir Cap is a genuine Audi OEM coolant expansion tank cap designed to fit a wide range of Audi vehicles, including 4-cylinder, 5-cylinder, 6-cylinder 2.8L, and V8 models in 3.7L and 4.2L configurations spanning the late 1990s through early 2000s. This cap fits specific chassis ranges up to VIN 8D-T-308 000 and 8D-T-309 402, making precise fitment verification essential before purchasing. Also referred to as the expansion tank cap, engine coolant reservoir cap, or coolant system cover, this component maintains the correct pressurization within your cooling system. A properly functioning cap holds the system at the right pressure threshold, raises the coolant's boiling point, and prevents coolant loss — all critical to protecting your engine from overheating. Unlike generic aftermarket alternatives, the Audi OEM Reservoir Cap 443121321 is manufactured to exact factory pressure ratings and seal tolerances, ensuring a secure fit on the reservoir neck without the risk of pressure leaks or premature seal degradation that commonly occur with lower-grade replacements. Sourcing this part as part number 443-121-321 guarantees you receive the same component Audi installs at the factory. Audi Henderson is an authorized Audi dealer, and every genuine OEM part purchased through our store is backed by the manufacturer's warranty for your complete peace of mind.
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Also Purchased
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
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AUDI HENDERSON
Welcome to Audi OEM Parts, your number one source for all things Audi. We're dedicated to providing you the very best parts and accessories, with an emphasis on OEM fitment.
You can order your Genuine Audi Reservoir Cap 443121321 OEM Authorized Dealer Factory Original (443121321) right now and have it delivered to your home or work in just a matter of days. Guaranteed to fit your 1984-2003 Audi vehicle and we also offer a VIN verification system at checkout.
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Audi
AudiOEMParts.com is operated by Audi Henderson, an authorized Audi dealership and part of the Findlay Automotive Group in Henderson, NV. We stock genuine Audi OEM parts and accessories for every model — A3, A4, A5, A6, A7, A8, Q3, Q5, Q7, Q8, TT, R8, e-tron, and beyond.
Every part ships directly from factory inventory with full Audi manufacturer warranty. No aftermarket substitutes. No compatibility guessing. Exact fit, every time.
Order online and ship nationwide. Same parts Audi technicians use, at authorized dealer pricing, with the speed of online ordering. Questions? Call 888-448-6114 or email [email protected].