OEM AC Delco Engine Block Heater & Cable
2017-2019* GMC Chevrolet 6.6L Duramax - L5P
GM Model Numbers 85590391 & 12705875
****PLEASE NOTE: GM SWITCHED FROM A TWO PRONG TO THREE PRONG WITH INTERMEDIATE CABLE ON THE 2020+. PLEASE MAKE SURE WHAT YOU HAVE BEFORE YOU PURCHASE. THIS WILL NOT FIT 2020+
