This is the original round top shape of petrol cap.There is a breather hole in the cap - Offered by Unipart as an accessory it was made and designed by Wilmot Breeden. This locking cap will fit any mini EXCEPT Fuel Injected cars.
Bouchon de reservoir d'essence à clé noir non ventilé à partir de 70
For all mini pickups, vans, estates and MK1/2 Minis. Any early minis without a vent on the top of the tank also require this cap.A vented cap has been fitted to Minis over its history but must not be fitted to any Injection cars as they require a sealed system. See WLD100660 for non vented cap.