Hi all,
Does anyone know where I can source the correct size/thickness seal for a Waso pentagon cap?
Thanks
Fuel cap seals
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- 1275 Cooper S
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Re: Fuel cap seals
I acquired after market non locking filler caps and the rubber seals failed very quickly. And I thought it was my cornering style! 

Re: Fuel cap seals
Yes, I took the cap off and realised that some chunks of the seal had fallen in the tank… as long as it doesn’t seal up the filter I’m sure will be ok, but will have to get them out at some point
- johnv
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Re: Fuel cap seals
Nippycars do them for standard caps, would they fit?
Mk2 1968 Cooper 998 TPL555F
Mk1 1965 Cooper 1275 BFC110C
Moke out of boxes and built NDV100F
Mk1 1965 Cooper 1275 BFC110C
Moke out of boxes and built NDV100F
- Simon776
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Re: Fuel cap seals
You really need a seal made of Viton in these E5/E10 days. Measure the internal and external diameter and thickness of the original seal and you should be able to find a supplier of a suitable alternative on line.
I bought some for my standard caps after the Mini Spares ones lost their form after not very long exposure to E5 - and so far so good.
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- 1275 Cooper S
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