GM 84766919 Duramax Block Heater Cord at Block Element 2020+ L5P
Engine Block Heater Plug on 2020+ GMC & Chevrolet HD Trucks - YouTube
Where's my block heater cord? Where do I plug my truck in? All these questions are answered by Ed, check out this video! #gmc #chevrolet #silverado... | By Swan River's Key Chevrolet