Black Diamond Head Gasket for 2008-2010 Ford Powerstroke 6.4L
Enginetech – Cross Ref Mahle – Victor Reinz 54657 – One Side
The coating seals & impregnates into the mating component surface where it decreases friction forces.
Allows controlled sliding of the components relative to the gasket without damage to aluminum engine components.
The Black Diamond coating is soft enough for cold sealing and features maximum adhesion.
Increased durability & temperature resistance and is also resistant to engine fluids including gas, oil & coolant.