Need pt. # for head gasket 94 year model, looking for marine gaket .20 or best one to use.Any help would be greatly appreciated.

 

I believe it is 3929339, can't remember the first 4 digits exactly but I know for sure the last three digits are as follows:

stock thickness - 335
.010" thicker - 337
.020" thicker - 339

Maybe someone can chime in and correct the first digits for me if they are wrong. Those are the newer Marine HGs as well, I think that is what Cummins parts dealers solely sell now due to the increase reliability.

Joe

 

Doh! My bad, I just found the correct numbers, they are 3283335, 3283337, and 3283339. The last three digits are still correct to the above corresponding thicknesses of Marine gaskets.

Joe