67' A/C dryer site glass cap

[Jeffrey G.]

My recently NCRS judged 67' with A/C lost a point because I was missing a cap that covers the A/C dryer site glass. I've seen what I think may be an original, it's a black plastic cup that fits snug into the site glass hole without a brim. I checked the usual repo sources without luck.

Does anyone know who sells this part or know how or has suggestions on how to make a cap like this?
Thank you!

[Wayne M.]

Re: 67' A/C dryer site glass cap

Attached thumbnail so others may see the detail. This is on an NOS GM unit purchased about 1982, but I think the black cap is the same as would have been used in production in '63-7.

[Ken A.]

Re: 67' A/C dryer site glass cap

Actually plug is a misnomer. The original purpose of the insert was to protect the glass during painting of the drier. They were usually red plastic & became black during painting. In addition they were often removed during the "dealer prep" process while a mechanic checked the sight glass for bubbles. Any plastic plug that fits will do, just trim level with the top of the cavity & paint gloss black.

[Jeffrey G.]

Re: 67' A/C dryer site glass cap

Wayne and Ken,
Thanks for the responses, I've got a better idea of what I'm looking for.
Jeff