
- Ready-to-Install and Fully Loaded: Save significant time and effort with a head that comes completely assembled. It includes a full valve train with new valves, springs, seats, seals, retainers, and keepers—everything needed for a quick and confident "bolt-on" installation.
- Precision and Quality Manufacturing: Built from new OEM castings, this cylinder head undergoes rigorous quality control. It's treated for a high-quality finish, verified for flatness, and subjected to comprehensive pressure and leak testing. A precision CNC valve job is performed to guarantee perfect sealing between the valves and seats.
- Enhanced Durability: Constructed with high-quality materials and featuring black nitride-coated valves, the DK-GML5P-CHL is specifically designed for maximum reliability and a long, demanding service life under heavy-duty conditions.
- No Core Charge: As a brand-new component, there's no hassle of returning an old cylinder head and no surprise core charge to worry about, simplifying your purchase and installation process.
- GM Duramax 6.6L – 2017-2025 – L5P VIN Code ‘Y’
- GM Duramax 6.6L – 2019-2025 – L5D VIN Code ‘K’

Unleash the full potential of your 2017-2025 L5P Duramax engine with the DK Engines DK-GML5P-CHL New Cylinder Head. This isn't a refurbished component—it's a brand-new, single-cylinder, loaded cylinder head meticulously engineered to be the ideal replacement for a damaged or failed unit on your 6.6L diesel engine. Designed to meet or exceed original factory specifications and performance, the DK-GML5P-CHL ensures your heavy-duty GM truck maintains its power, efficiency, and legendary reliability. Investing in this premium component guarantees a precise fit and reliable function, restoring your engine's integrity without compromise.
Ready-to-Install and Fully Loaded: Save significant time and effort with a head that comes completely assembled. It includes a full valve train with new valves, springs, seats, seals, retainers, and keepers—everything needed for a quick and confident "bolt-on" installation.
Precision and Quality Manufacturing: Built from new OEM castings, this cylinder head undergoes rigorous quality control. It's treated for a high-quality finish, verified for flatness, and subjected to comprehensive pressure and leak testing. A precision CNC valve job[...]
- Ready-to-Install and Fully Loaded: Save significant time and effort with a head that comes completely assembled. It includes a full valve train with new valves, springs, seats, seals, retainers, and keepers—everything needed for a quick and confident "bolt-on" installation.
- Precision and Quality Manufacturing: Built from new OEM castings, this cylinder head undergoes rigorous quality control. It's treated for a high-quality finish, verified for flatness, and subjected to comprehensive pressure and leak testing. A precision CNC valve job is performed to guarantee perfect sealing between the valves and seats.
- Enhanced Durability: Constructed with high-quality materials and featuring black nitride-coated valves, the DK-GML5P-CHL is specifically designed for maximum reliability and a long, demanding service life under heavy-duty conditions.
- No Core Charge: As a brand-new component, there's no hassle of returning an old cylinder head and no surprise core charge to worry about, simplifying your purchase and installation process.
- GM Duramax 6.6L – 2017-2025 – L5P VIN Code ‘Y’
- GM Duramax 6.6L – 2019-2025 – L5D VIN Code ‘K’