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Cat and Fleetguard use a -12o-ring boss. Other setups out there including the Wix base and Permatex base use a 1/2" NPT. The 1/2"NPT is a bit smaller. Just take the filter base to a plumbing/hydraulic shop.
i tried a -12 orb and couldnt get it to thread into the base? it is too big?
The 10 ORB is what fits these cat heads. Then you need that to go to the size of your lines. 1/2 in. most likely since you have the AD. Also read the threads that are posted above, lots of good info in them.
2012 4X4 CCLB DRW Mini Maxx non deleted tune , for now !
Firestone ride right airbags, duraflaps,
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