RB20 water temp sender thread pitch?

[dtowngoalie]

Does anybody know the thread type for the water temp sender that is for the gauge in the cluster, I'm trying to source an adapter for my gauge. Thanks

[maryjane]

the single wire sensor or the sensor that has two wires and a plastic clip? for the one wire sender i ran a 1/8npt tap into the old threads, worked well for me

[gawdzilla]

1/8 bspt. NOT 1/8 npt. but if you want to and you force the npt tap in to widen the hole it will work, but it's kind of janky

[dtowngoalie]

So are the one wire sender's threads 1/8 bspt?

[dtowngoalie]

Found, for anyone wondering, its a M12 x 1.25 thread pitch.

[Carl H]

werd, its a weird size fo sho.

[dtowngoalie]

Also nobody carries an adapter for 1/8 npt to M12x1.25. I've opted to get a 1/8 npt to 1/4 npt adapter and tap the threads to 1/4 npt. Hopefully this help someones in the future.

[gawdzilla]

oops sorry about the misinfo earlier.

just leave the factory sender there and drill/tap a new hole to whatever the size is for your aftermarket sender in the water neck.