Coolant Tank Cap FIRST LINE FRC85 OE Ref 357121321A

Key Specification:
  • Diameter [mm]: 79
  • EAN: 5038068102188
  • Material: Plastic
  • OEM Reference number: 1H0121321C
  • Pressure [bar]: 1-5
Sale
£ 29
£ 24.17 excl. VAT
In Stock
SKU:FIRST LINE FRC85
BrandFIRST LINE
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Diameter [mm]
79
EAN
5038068102188
Material
Plastic
OEM Reference number
1H0121321C
Pressure [bar]
1-5
Pressure [psi] to
22
PURPOSE GROUP
Coolant Tank
Supplementary Info
Radiator Cap
Thread Type
External Thread

Coolant Tank Cap FIRST LINE OE Ref 357121321A – FIRST LINE – OEM 1H0121321C

This part from FIRST LINE is designed as a direct replacement for OEM reference 1H0121321C. Manufactured to meet original equipment standards, it is suitable for selected AUDI, FORD, SEAT, SKODA, VW vehicles and intended to restore correct system operation.

It is supplied under manufacturer reference FRC85 with EAN 5038068102188, allowing accurate identification and compatibility checks. This component is commonly used to replace worn, damaged, or faulty units where reliable performance is required.

The product is intended as a like-for-like replacement and should be installed according to manufacturer guidelines. Depending on vehicle design and component location, professional installation may be recommended.

Why Choose This Part?

  • Direct replacement for OEM reference 1H0121321C
  • Manufactured by FIRST LINE
  • Clearly identified by SKU FRC85 and EAN 5038068102188
  • Covered by our standard returns policy

Vehicle Compatibility

Compatible with selected AUDI, FORD, SEAT, SKODA, VW models. Please confirm fitment using OEM reference 1H0121321C or our vehicle registration lookup tool before ordering.

Looking for alternatives? Browse our full range of Engine Cooling System parts to find the correct option for your vehicle.

  1. Berry
    12 Nov, 2025
    elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
  2. Edward & Susan
    20 OCT, 2025
    These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
  3. Charlie
    27 AUG, 2025
    eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
  4. Adam Taylor
    12 May, 2025
    Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
  5. Helena Garcia
    2 January, 2025
    The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.