Aftermarket engine coolant block heater and required adapter for many John Deere products equipped with Yanmar diesel engines. Includes all necessary parts when initially installing the coolant heater on John Deere compact utility tractor models 1025R, 1026R, 2025R, 2026R, 2305 and 2320. Also used on Garden tractor models X495, X740, X744, X748 and X749. CORRECT APPLICATION MAY NEED TO BE VERIFIED BY SERIAL NUMBER. Please use your own resources to ensure this kit is the correct kit for your application or contact us with your model and serial number. This block is 7/8 inch thick. Includes everything in image. Includes aftermarket replacements for John Deere part numbers AM134805 (consists of M152691 adapter block, M805828 gasket and 2 screws) and part number AR87167/sales bundle number LVU10640 (consists of AR87184 heater and AR87168 power cord).