6.6L Duramax Billet Coolant Block Off Plate (2001-2023) - FPE-DMAX-CBOP All improves fuel economy

improves fuel economy

Outflows Factory Intake by 16%

easily serviceable polyurethane bushings

the injection system on the diesel engine could become damaged

6.6L Duramax Billet Coolant Block Off Plate (2001-2023) - FPE-DMAX-CBOP All improves fuel economyUpgrade your rear engine cover and stop the coolant leaks for good! Our blocking plate is thicker than the stock plate and has an integral square cut O ring with no gasket required. OE covers are prone to leakage over time, our billet coolant block off plate with an integral O ring is an upgrade for your rear engine cover and will the stop the coolant leaks for good. APPLICATION NOTES Direct Replacement for GM P N: 97941204 Price includes applicable