Mech Posted April 1 Report Share Posted April 1 Does anyone know where to get AC compressor O rings? I will be converting my system to R134a. I bought the kit as listed by rock auto "four seasons 26764", but it did not have the correct size for the compressor. I referenced the four seasons part numbers from rock auto for the compressor on four seasons website, and it says it does not fit starion or conquest (except for 26764), and it also lists the incorrect O ring dimensions. i think the size I need is 24mm x 2.5 ( 19mm I.D 24mm O.D). I bought a kit from amazon, and it had a 20mm x 2, but the 2mm cross section is not "fat" enough , but a 4mm cross section is too fat, so it must be 3 or 2.5mm. Actually the stock black O ring is 2.5mm, and thats why there is a small gap on the machined O ring groove . So maybe 3mm will be too fat? I did find 3mm (18mm I.D) and 2.5mm (19 I.D) O rings on amazon, but they are not green in color, at least thats what shows in the pic, and they don't list anything about A/C. Link to comment Share on other sites More sharing options...
Mech Posted April 1 Author Report Share Posted April 1 ive been looking at these, from researching, nitrile rubber is best for AC o rings... https://www.amazon.com/gp/product/B07W72GPCF/ref=ox_sc_act_title_1?smid=A1THAZDOWP300U&psc=1 Link to comment Share on other sites More sharing options...
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