Block heater plug cover

thingiverse

Ran into an issue where my Dad's diesel wouldn't start one very cold morning. So I went to plug in the block heater and I noticed right away it wasn't going to work because the terminals on the truck side were terribly corroded. So after cleaning those off, I made this to cover the plug in hopes that it wouldn't corrode again any time soon. The strap is made from ninjaflex, so I could get it around the plug. The strap has a small loop and a big loop. The small loop goes onto the 3D printed cover. The big loop is for going around the plug end on the truck side.