2005 X-type 3.0L
Replacing the air conditioner compressor with an aftermarket. It came with black o-rings for the two line connection that goes to the air drier and return from the condensor. Went to have the a/c serviced and auto shop couldn't sustain pressure due to leakage at the singular fitting area. I took it apart and could not see why it didn't seal properly, except in looking at the original fitting, the o-rings were green and appear to be more squarish in nature versus the round black o-rings that came with the compressor.

O-rings appear to be O.D. 1-1/16 inch; I.D. 13/16 inch; 1/8 in wide. (O.D. 2.8mm, I.D. 2.0 mm, 0.4 mm wide). Parts book does not identify individual o-rings. Am having trouble finding replacement o-rings. Local auto parts stores sell a//c o-ring kits (green), but none of the kits have the larger o-rings I need. I believe I need the SAE o-rings in inches, not mm, as original compressor is from the Ford era.

Also looking for a replacement o-ring for the the connector to the air drier, which appears to be O.D 11/16 in., I.D. 1/2 in., 3/16 in.

Can someone provide guidance on the proper o-rings to use and a source to acquire just a few (don't want to buy a 595 piece kit when I just need two).
One option I'm considered is to use RTV filler on the fitting in addition to the o-ring. What problems exist with that option?
Thanks,
Squito

 

https://www.partsgeek.com/catalog/20..._seal_kit.html

 

Okay, ya'll can stop looking...I found a suitable option.
Thank you, Del, for your quick response. Unfortunately, the listings you provided are similar to the ones I initially found. Most do not provide a listing of what is in the kit and/or they stop at a size just below the size I need. They generally do not have the larger size 13/16"ID X 1-1/16"OD X 1/8"CS, or were in kits that cost $40 USD or more. After being a little more diligent, I found a 205 piece kit that contains 5 of the needed o-rings for (I guess) a reasonable $12.00 USD at a local wholesaler (so no shipping charges equal to the cost). So I should be good to go (famous last words).

P.S. If anyone is interested in a kit containing 200 HNBR o-rings used in automotive repair and that are smaller than a 1-1/16"OD o-ring, I've got a deal for you

 

I got mine at my local Autozone in a variety pack
hasn't leaked in 6 years ,they are green

 

Dennis, yes, I purchased the same item. But when I got home and compared the o-rings, that kit doesn't contain the size o-ring needed for the fitting. I had to return it. While it looked like one of the orings would work, once I measured the old o-ring, I discovered the kits available at Autozone, O'Reilly's, NAPA, etc. did not include the larger o-ring. Hence my search....

 

To document, the o-ring in question (O.D. 1-1/8 in., I.D 13/16 in., cross section 1/8 inch) is a standard size AS568-211 in green HNBR.

 

They must have removed them that was 6 years ago
thats a shame, mines going strong