I looked it up in the Carquest catalog. First off Carquest, Napa, & Wix are all the same filters. The first diget in the part number designates the supplier. Carquest start with 8. The part # for the AC cartridge is 85100. It measures 4.531 O.D. & 5 in. height. The part # for the Fram is 85006. It measures 4.156 O/D. & 5.00 height. I'm thinking they have consolidated the 2 into one part #. The AC uses a top bolt with a 5/8 wrench size. The Fram has a bolt with 7/8 wrench & a few Frams have a big wing nut on top.

Last edited by Wrenchbender Ret.; 02/11/2009 10:14 PM.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum