6.6L Duramax Billet Coolant Block Off Plate (2001-2023) - FPE-DMAX-CBOP All Outflows Factory Intake by 16%

Outflows Factory Intake by 16%

improves fuel economy

Part Number: AP63803ADR3

Retains and normalizes internal turbine housing temperatures for lower spool times

Part Number: 51-73003

6.6L Duramax Billet Coolant Block Off Plate (2001-2023) - FPE-DMAX-CBOP All Outflows Factory Intake by 16%Upgrade 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