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Details
| Specification | Value |
|---|---|
| Brand | TRICLO |
| Thickness [mm] | 32 mm |
| Outer Diameter [mm] | 87 mm |
| Opening Pressure [bar] | 1.5 bar |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- AUDI / SEAT / SKODA / VW—1J0121321B
- AUDI / SEAT / SKODA / VW—3B0121321
Where this part fits
Original-fit position for OE 3B0121321. The red ring marks where this part installs on the vehicle.
About this product
Sourced from TRICLO, this cap coolant tank (313326) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Thickness [mm]: 32 mm, Required quantity: Steel, Outer Diameter [mm]: 87 mm, Opening Pressure [bar]: Steel, Rubber bar — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit AUDI, AUSTIN, AUTOBIANCHI, BENTLEY and 21 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: 003677, 01686, 03677, 0414700 and 48 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TRICLO 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 (54)
Show all 54 OE numbers
Cap Coolant Tank TRICLO 313326 — 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; 1.2 TSI; 1.2 TFSI; 1.4 TFSI; 2.0 TDI quattro; 1.8 T; 1.8 TFSI; 2.7 TDI quattro; 3.0 TDI quattro; 2.8; 1.8 |
| Year of manufacture | 1994-2021 |
| Manufacturer article number (MPN) | 313326 |
| OE part numbers | 1J0121321B, 3B0121321 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TRICLO 313326 . Opening Pressure [bar]: 1,5 bar. Outer Diameter [mm]: 87 mm. Required quantity: 1. Thickness [mm]: 32 mm
- 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, AUSTIN, AUTOBIANCHI, BENTLEY, BMW and 20 more 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 TRICLO Cap Coolant Tank have?
This TRICLO Cap Coolant Tank has the following specifications: Thickness [mm]: 32 mm; Required quantity: 1; Outer Diameter [mm]: 87 mm; Opening Pressure [bar]: 1,5 bar. 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: 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 TRICLO Cap Coolant Tank is available for £13.99. Cap Coolant Tank prices vary depending on brand, specifications, and vehicle compatibility. TRICLO 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 1J0121321B?
Yes, this TRICLO Cap Coolant Tank is a direct replacement for OE part number 1J0121321B. 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.
