Higher PSI Radiator Cap?

I have the factory wide mouth radiator opening... is there an higher PSI cap then the 4psi one available? If so does anyone have a part number? The good guys haven't been behind the counter at the local NAPA lately. I was hoping to find an 8 or so psi cap.


Figure I will try the tractor place if I can't find it at the auto parts...

 

PVC 46019 is a 10lb cap, OEM large cap style
this came from an All Pro Auto Parts in 2002
they are out there
you just need a creative parts person to walk back and look at all of them

 

I usually have 2 good ones that will, but the 2 guys working nights lately won't deal with me and look up the old stuff. Thanks for the part # I will call them on my lunch.

So you know if that was a Stant part # or a All Pro #? We don't have All Pro around here...

 

I don't know
I bought it on a trip we made in 2002, 700 miles away from home
it was a mom and pop type of store
he just walked around till he found one
I still have the receipt which is where the number came from

 

Called NAPA earlier, and they were able to cross reference it... they even have it in stock!

$8.00 I pick it up tonight, THANKS!

 

Seven pound Napa cap is #703-1410. That is the one that worked for me.