I have a 1988 G 6200 Diesel garden tractor. I bought a cold weather preheater kit through Kubota. It is a freezeplug heater. Does anyone have info on the installation of this kit. I am a little confused. The installation instructions show a compression type fitting where it mounts into the block. The kit I have has a threaded type mount into the block. Where do I mount the threaded piece into the block? thanks in advance for any help!!