I'm sorry to resurrect a 2 year old thread! But I need some clarification. The mounting port is 36mm threaded? I can't find any threaded engine block heaters for my 1994 Subaru Loyale, just this that supposedly fits: Kats 11405, however that is the rubber gasket style. Thanks for any feedback, I need to get this guy warm before my daily 5:00 am drives.
Also, I found this PDF that shows where to mount the heater. Is this correct?
That is the plug but shown on an EJ series engine. Its the same size and removed with the same tool.
The dealer here usually stocks the block heaters, as described above its $27 USA. I haven't ever seen the brand you linked to but it looks similar to the ones I have installed here.
For the most part I think these are a waste of time. A Subaru with 5w30 will start in really cold temps and heats up in a matter of about 5 minutes of driving or less.