gas cap for 72
 

having a heck of time trying to find a vented gas cap for my 72 fleet side. if anyone has this magic napa part number that would be awsome. i work at napa and damn if i can find it. we just got our updated cap catalog, it's not in there.

Re: gas cap for 72
 

i've always just used the tube that went to the charcoal canister from the gas tank as a vent so i could use the stock gascap

Re: gas cap for 72
 

BK 7031220
Napa #

Bud

Re: gas cap for 72
 

you do not need vented for a 72

Re: gas cap for 72
 

thanks bud. thats the one i've got. it dosen't fit. that fits c20's and c30's according to the book

Re: gas cap for 72
 

i thought 72's were vented? arent they different than the others?

Re: gas cap for 72
 

I believe the 72, since it had the beginnings of emission equipment on it, was a sealed system to recover the vapors. Therefore, it would be a non-vented cap. I am sure more knowledgeable will chime in though.

Re: gas cap for 72
 

I have an NOS cap in a GM box with part number 6263474. I was told it's correct for my 72 C10. On the underside it is stamped pressure vacuum. I assume this means it is not vented. It is identical to the cap on my 72 which I believe to be the original cap.
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Re: gas cap for 72
 

correct, it is vented thru a charcoal canister under the hood with lines running from the tank

Re: gas cap for 72
 

You have it backwards. The '67 - '70 or '71 were vented and the '72's were non-vented.

LockDoc