mpi blow offvalve oring size

[polarcat71]

anybody know what size and where to get the o-ring for MPI supercharger/intercooler blow off valve (lost it and only have the oring groove to go by, measures 1.840" inside x 2.070" outside, x .075" deep)

 

[Yam4Strokin]

You should be able to go to an auto parts store (or Ag equipment parts department) and get a -133 o-ring. This o-ring below would work, but doubt you want to buy a bag of 100!

https://www.mcmaster.com/9452K138