The gasket around the in-tank fuel pump on my car disintegrated and is leaking.

I can't seem to find a new replacement anywhere.

Could I just cut my own out of a piece of rubber or cork?

  • 1
    Make it from material that is designed to do the job such as this (possibly with a sealant). Commented Jul 30, 2022 at 7:44
  • Note that part of smog testing is pressurizing the fuel tank and making sure it can hold pressure. A post-2000 car will even blow a code for that. Commented Aug 2, 2022 at 0:39

1 Answer 1


If the original gasket was rubber and you have some rubber of the correct thickness that does not deteriorate when in long term contact with fuel (not all can) then there is no reason why you couldn’t make one yourself out of rubber.

I don’t think cork will be suitable or easy to work with.

Often these gaskets are made from a special oil resistant paper/card like this - enter image description here

This is readily available in different thickness sheets for DIY gasket making. For example on Amazon

  • Recommending crud of random quality from 3rd party Amazon sellers (which ~= eBay) is a terrible idea. I would try McMaster-Carr or Grainger, or a chandlery. Commented Aug 2, 2022 at 0:38

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .