Header Tank Cap - T3 / OEM

Petrol models from Apr '83 / Diesels from Jan '84

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Header tank cap to suit all T3 with screw on cap.

Replaces earlier black cap.

Made by the original manufacturer for VW, same valve assembly as the genuine VW item, just a different style shape.

Basically a genuine cap in a different style body and a more attractive price!

Additional Information

Additional Information

Our Part Number T3121321B
VW Part No 025 121 321 B
Weight (kg) 0.15
Manufacturer Blau
Shipping Restrictions No


£7.08 (Inc VAT)
In stock



Customer Reviews 2 item(s)

Don't mess around...
You don't want to mess around with crappy and unrealible expansion caps. I've had a few from different manufactuers fail in the past and all of my VW friends recommend Brickwerks as they stock tried and tested products. This Blau cap is really high quality. Review by Richard / (Posted on 06/06/2020)
Peace of mind
I have bought several of these caps from different suppliers and this was the only one that passed the blow test. Review by Christopher / (Posted on 03/03/2014)