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Details
| Specification | Value |
|---|---|
| Brand | Borsehung |
| MPN | b19281 |
OE/OEM numbers (4)
Search by this OE number to find compatible parts
- VAG—1J0121321
- VAG—1J0121321A
- VAG—1J0121321B
- VAG—3B0121321
Where this part fits
Original-fit position for OE 1J0121321A. The red ring marks where this part installs on the vehicle.
About this product
The Borsehung Cap Coolant Tank (B19281) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. Verified to fit AUDI, SEAT, SKODA, SKODA (SVW) and 1 other makes models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 1J0121321, 1J0121321A, 1J0121321B, 3B0121321. Matching these numbers confirms a like-for-like replacement with no loss of function. Borsehung 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
No equivalent parts found.
Cap Coolant Tank Borsehung B19281 — compatible car models
| Car models | AUDI: A1 (8X1, 8XK), A1 Sportback (8XA, 8XF), A2 (8Z0), A3 (8L1), A3 (8P1), A3 (8V1, 8VK), A3 Convertible (8P7), A3 Convertible (8V7, 8VE), A3 Limousine (8VS, 8VM), A3 Sportback (8PA) (+20 more) |
|---|---|
| Engines | 1.0 TFSI; 1.2 TDI; 1.6; 1.4 TFSI; 1.2 TFSI; 2.0 TDI quattro; RS4 quattro; 1.8 TFSI; 3.0 TDI quattro; RS6 quattro; 4.2 quattro; 2.5 TDI quattro; 2.0 TDI |
| Year of manufacture | 1994-2021 |
| Manufacturer article number (MPN) | B19281 |
| OE part numbers | 1J0121321, 1J0121321A, 1J0121321B, 3B0121321 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
Borsehung b19281 . B19281
- 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, SKODA, SKODA (SVW), 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 Borsehung Cap Coolant Tank have?
The package includes the Cap Coolant Tank as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this Cap Coolant Tank replace?
This Cap Coolant Tank replaces OE part numbers: 1J0121321, 1J0121321A, 1J0121321B, 3B0121321. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Cap Coolant Tank cost?
This Borsehung Cap Coolant Tank is available for £5.99. Cap Coolant Tank prices vary depending on brand, specifications, and vehicle compatibility. Borsehung parts offer a balance of quality and value, backed by 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 1J0121321?
Yes, this Borsehung Cap Coolant Tank is a direct replacement for OE part number 1J0121321. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
