Yeah, it's the same as the ones I see on HD trucks at work. Don't matter, they all cost 60 bucks. You'll need to make an attachment for it on the air filter box though. I have a spare box that HAD such an attachment that I have since cut off. I'll sell you the box if you want to experiment with welding on a new threaded section. The air filter minder airbox is $113, and comes with both primary and secondary filters, but no minder.
Oh that's cool. Didn't know they had the dual filters without the minder! Not sure now much meat is there to just tap a hole, not without adding something to it. Though maybe yours is different than mine. I believe the minder threads onto a 3/8NPT.
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