
- New Cylinder Heads: The main, robust housing for the entire valve and valve train assembly.
- New Valve Train Components: A complete set of new valves, valve springs, seats, seals, retainers, and keepers.
- Black Nitride-Coated Valves: A key durability upgrade, this special coating enhances the valves' performance and greatly extends their lifespan, helping your engine withstand the intense demands of a diesel powertrain.

If you're undertaking an engine rebuild or repair on your 2011–2016 GM 6.6L LML Duramax diesel, the DK Engine DK-GMLML-CHL Loaded Cylinder Head pair is the superior, ready-to-install solution you need for restoring peak engine efficiency. These aren't just bare components; they are a pair of new, high-quality cylinder heads precision-manufactured by DK Engine Parts to serve as a direct, bolt-on replacement. The cylinder heads are the core of your engine's performance, as they sit atop the block to perform three critical functions: they form a necessary seal to contain the immense pressure of combustion, they precisely control the air intake and exhaust flow via the valve train, and they manage the extreme heat of the combustion process by allowing coolant and oil to circulate. By choosing this loaded pair, you ensure every element of this vital system is brand new and engineered for reliability.
New Cylinder Heads: The main, robust housing for the entire valve and valve train assembly.
New Valve Train Components: A complete set of new valves, valve springs, seats, seals, retainers, and keepers.
Black Nitride-Coated Valves: A key durability upgrade, this special c[...]
- New Cylinder Heads: The main, robust housing for the entire valve and valve train assembly.
- New Valve Train Components: A complete set of new valves, valve springs, seats, seals, retainers, and keepers.
- Black Nitride-Coated Valves: A key durability upgrade, this special coating enhances the valves' performance and greatly extends their lifespan, helping your engine withstand the intense demands of a diesel powertrain.