Make sure the block heater on your Duramax is working properly. If it is no longer heating a faulty block heater cord may be the culprit. Common issues are a short in the wire or other physical damage.
5 star service and parts, January 11, 2019 By Anonymous(Verified)
Received it in a respectable amount of time, being that I'm in Canada I didn't expect it over night. And it was a perfect fit factory replacement after being the idiot that backed out without unplugging the stock cord. Thanks M/A
A+, October 15, 2018 By Anonymous (ONAWAY, MI)(Verified)
Cord works good very fast shipping!
Duramax block heater cord, December 26, 2017 By Anonymous (Norton, OH)(Verified)
Looks just like the original. Plugged right in to my 2006 Duramax.