Need some engine block heater info please
2011 Colorado 3.7.
The older gen motors use a Kats screw-in engine block heater. I installed one in my 2.8 Canyon. The 3.7 is different. According to my service manual, this engine uses a heater that snaps into a bore just below the thermostat housing. Kats website still lists the old style as fitting the new engines. I checked it out and indeed it does use something different than the old style. My problem is that I can not find the correct Kats number or GM number for the 3.7. Can anyone help?