Shop, Share and Save at the only website dedicated exclusively to the Duramax Diesel Owner. Designed and operated by Duramax Owners for Duramax Owners. Join us now and experience the difference!Shop Now
DmaxStore Billet Coolant Block Off Plate
Fits 2001-2018 Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Replaces GM Part# 97941204
The DmaxStore Billet Coolant Block Off Plate replaces the leak prone OEM coolant plate with a sturdy billet aluminum plate that has an integrated o-ring to eliminate any leaks that may happen from the inadequate factory parts. We include grade 10.9 hardware, an o-ring and the plate itself to provide a complete solution to the common rear cover leak.