ARB CKMA12 air leak

[C.Gerdo]

It has had a slight leak when it’s cold. Yesterday (very cold) it leaked a lot, cycling on and off. Luckily, it held enough pressure that my lockers still worked. It appears that the O ring at the end of the little tank is where it leaks. Has anyone replaced these O rings? I’m not having much luck Finding the ARB ones.

 

[DouglasVB]

It has had a slight leak when it’s cold. Yesterday (very cold) it leaked a lot, cycling on and off. Luckily, it held enough pressure that my lockers still worked. It appears that the O ring at the end of the little tank is where it leaks. Has anyone replaced these O rings? I’m not having much luck Finding the ARB ones.

I opened up one of those (or an older version) a few years back when a little valve inside the compressor was having issues (I fixed it by bending the little flap of metal a bit). It appeared all of the O rings were just normal rubber. You should be able to go to a well stocked hardware store and find the O ring you need or order a kit with a bunch of different sizes of O rings from the internet.

Dunno if this helps but here's a similar ARB air compressor parts list: https://www.arb.com.au/assets/air-lockers/3-07.pdf

I'm guessing you could use this kit: https://www.4wheelparts.com/p/arb-air-compressor-o-ring-set-320301/_/R-BHWQ-320301