A direct replacement for the factory coolant crossover on the Duramax. Machined from billet aluminum, this block off plate seals the coolant passage cleanly and holds up where the plastic factory piece does not.
Why Replace the Factory Piece
Billet aluminum construction replaces a known failure point
Resists cracking under heat cycling and pressure
Precision machined for a proper seal
Direct bolt-on, no modification required
Fitment
2001-2017 GM 6.6L Duramax. Confirm your specific engine configuration before ordering.
Questions about fitment? Call us at 865-640-2097 and we will confirm the right part for your truck.
