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...
OEM AC Delco Engine Block Heater Intermediate Cable At The Bumper 2020+ L5P
OEM AC Delco Engine Block Heater Intermediate Cable At The Bumper 2020+ L5P