I purchased a Kats 30115 block heater for a 4bt cummins. I thought that it went in the plug on the block behind the alternator but it won't fit. I can't find a plug that it'll fit in. Any ideas of where the 3/4" plug maybe at for this is? Thanks
Yup. should be just to the rear of the oil cooler or oil filter, later blocks were 1" pipe.
Ok thanks I'll look her over again
The first pic is a Allen plug behind the alternator but it's to small for the threaded block heater. The other pic is right behind the oil cooler but it looks like a mini freeze plug, not sure if it's threaded or not.
Not looking like a 4BT to me, are you sure?
Yeah it's a 4bt, unless it's a aftermarket block maybe. I don't know. I purchased it as a remanufactored 4bt. On the side where the oil cooler is it only has 1 larger freeze plug & then the smaller 1 that was in the pic. I don't see anywhere else with a threaded plug for it.
Oh yeah, tracking now... apparently the knockoff block just use a core plug? Here's a pic: