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Details
| Specification | Value |
|---|---|
| Brand | VAICO |
| MPN | v10-0018 |
OE/OEM numbers (7)
Search by this OE number to find compatible parts
- AUDI / SEAT / SKODA / VW—171 121 321
- AUDI / SEAT / VAG / VW—171 121 321 B
- AUDI / SEAT / SKODA / VAG / VW—171 121 321 D
- AUDI / VAG / VW—171 121 321 F
- AUDI / SEAT / SKODA / VAG / VW—443 121 321
- VAG / VW / AUDI—547 121 321
- AUDI—99610644704
Where this part fits
Original-fit position for OE 443121321. The red ring marks where this part installs on the vehicle.
About this product
When cap coolant tank performance matters, the VAICO V10-0018 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Colour: Rubber. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with AUDI, SEAT, VW vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 002-60-02032, 02269, 07.40.034, 10-0018 and 35 more. Matching these numbers confirms a like-for-like replacement with no loss of function. VAICO is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (31)
Show all 31 OE numbers
Cap Coolant Tank VAICO V10-0018 — compatible car models
| Car models | AUDI: 100 C1 Coupe (817), 100 C1 Saloon (801, 803, 805, 807, 811, 813, F104), 100 C2 Avant (435, 436), 100 C2 Saloon (431, 433, 434), 100 C3 Avant (445, 446), 100 C3 Saloon (443, 444), 100 C4 Avant (4A5), 100 C4 Saloon (4A2), 200 C2 Saloon (437, 438), 200 C3 Avant (447, 448) (+20 more) |
|---|---|
| Engines | 1.9; 1.6; 1.8; 2.0 E; 2.0; 2.1 5E; 2.1 Turbo quattro; 0.8; 1.3; 1.6 E; 1.6 TD; 2.4; 2.5 TDI; 3.7 quattro |
| Year of manufacture | 1968-2010 |
| Manufacturer article number (MPN) | V10-0018 |
| OE part numbers | 171 121 321, 171 121 321 B, 171 121 321 D, 171 121 321 F, 443 121 321, 547 121 321, 99610644704 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
VAICO v10-0018 Original VAICO Quality. Colour: 5
- 1x Cap Coolant Tank
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Cap Coolant Tank compatible with my car?
This Cap Coolant Tank fits AUDI, SEAT, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this VAICO Cap Coolant Tank have?
This VAICO Cap Coolant Tank has the following specifications: Colour: 5. Check the full specifications table above for complete details.
What OE part numbers does this Cap Coolant Tank replace?
This Cap Coolant Tank replaces OE part numbers: 171 121 321, 171 121 321 B, 171 121 321 D, 171 121 321 F, 443 121 321, 547 121 321, 99610644704. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Cap Coolant Tank cost?
Cap Coolant Tank prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this VAICO Cap Coolant Tank. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Cap Coolant Tank?
Regular inspection of your Cap Coolant Tank is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Cap Coolant Tank?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Cap Coolant Tank fitted by a professional mechanic.
Can I use this part as a replacement for OE 171 121 321?
Yes, this VAICO Cap Coolant Tank is a direct replacement for OE part number 171 121 321. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the VAICO V10-0018 the same as the VAICO V42-0254?
No, while both are Cap Coolant Tank parts, they are different products. The VAICO V10-0018 has Colour: 5. The VAICO V42-0254 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
