All the block heaters at the top of the page will work. Just choose the wattage (I went with 1000 watts) and make sure it comes with a new cord as the old won't fit the new. They have to be straight. CAT heaters are the same part number. This ebay page is for Detroit 2 cycles and CATs ONLY. Detroit block heater | eBay<br/><br/>These are for the thermostat housing at the top left...