Here's their catalog. http://www.kimhotstart.com/kimhotstart/uploads/documents/catalog/imc_500_catalog.pdfchriswheeler said:Find the Kim-Hotstart catalog, think it's on line. Rear of the catalog is a listing for Yanmar block heater. This only works if you have the large plug just above the starter. Screw out the plug and screw in the heater, that's it. Heater and cord costs about $50.
Chris