I noticed that one of the two little retaining tabs on my oil filler cap has broken off. Luckily, I stuck a magnet down in the filler hole and plucked it out. Are these caps still available?

 

Yes... all sorts of 'em. NPD has good pics of them in their catalog.

 

Ya, found one at AZ for $4 that looks exactly like mine cept chrome.

Sorry for wasting y'all's time.

 

Oil cap same 1968/90's myriad V8 FoMoCo vehicles, but in 1983 FoMoCo updated the part number, changed the color.

C8AZ-6766-A .. Oil Cap-Black / 1968/82 as original.

E3AZ-6766-A (replaced C8AZ-6766-A) .. Oil Cap-Yellow.

 

I bought one of these and it screws in perfectly.

CST/Oil Filler Cap 8071 at AutoZone.com

Problem I'm having is I can't get the plastic tube out of my old one. The new one came with two different sized grommets but the plastic thing doesn't come out of the old one. I cut out the rubber grommet from the original but the plastic still won't come out. I'm guessing that even if I cut it out it won't go in the new one. Is there another part I'm suppose to get? Anyone go any ideas?

 

C8AZ-6767-A .. Plastic 90 degree Elbow / Obsolete

C8AZ-6A892-A .. Rubber Grommet / 1 7/16" O.D. x 37/64" I.D. / Obsolete

Grommet fits into hole of oil cap, elbow fits into grommet.

Both: Myriad 1968/90's V8 FoMoCo vehicles.

When the rubber grommet hardens, it's very difficult if not impossible to remove the elbow from it.

The grommet has 2 "lips".. one on the outside, one on the inside of the oil cap. You cut the outer lip, but you cannot reach the inner lip to cut it.

Use tin snips, a sawzall or a hatchet to cut the old oil cap apart to reach the inner lip.

Or, go to an auto parts store, buy a new elbow, it's cheap.

 

That did it. Took a hacksaw and cut the old cap open which took all of 30 seconds.

Thanks Bill

 

I've got one of the older original ones sitting on a shelf I think, Wait a minute, sorry this one says "710" I'll look for the "OIL" one.