New Chevrolet Duramax 6.6L GM L5P Silverado Sierra 2500HD 3500HD Cylinder Head

New GM GMC 6.6 OHV Duramax Diesel L5P Cylinder Heads (2017 and up) – Fully Loaded

Duramax 6.6L GM L5P Silverado Sierra Cylinder Heads

Experience unmatched performance with our New GM GMC 6.6 OHV Duramax Diesel L5P Cylinder Head, expertly designed for 2017 and newer models. This premium cylinder head comes fully equipped to meet the rigorous demands of your vehicle.

Features:

• Precision Engineering: Meticulously crafted for peak performance and reliability.
• Quality Assurance: Each cylinder head undergoes rigorous cleaning, inspection, and pressure testing.
• Ready for Installation: Includes quality valve seals and is vacuum tested to ensure a perfect seal.
• Core Return Required

Benefits:

• Enhanced Durability: Built to endure tough conditions, extending your engine’s lifespan.
• Improved Performance: Optimizes engine efficiency and enhances power output.
• Perfect Fit: Engineered specifically for GMC models from 2017 onwards, ensuring seamless compatibility.

Fits:

Heavy Duty Parts Company – Core Returns Policy

At Heavy Duty Parts Company, core returns are essential to our ability to provide high-quality, cost-effective cylinder heads to our customers. These returned cores supply essential components, such as keepers, springs, and retainers, which are critical to engine performance.

No Core Charge – Just Send It Back!

Unlike other companies, we do not charge a core fee upfront. Instead, we rely on our customers to return their used cores to keep our supply chain running smoothly.

Why Core Returns Matter

• Many small but essential parts from cores are reused to maintain OEM-quality cylinder heads.
• Returning cores keeps prices competitive by reducing the need for costly new components.
• It supports sustainability by minimizing waste and conserving resources.

Send Back All Components

To ensure the quality and integrity of our remanufacturing process, we ask that you return all components that were originally included with your new cylinder head. This includes items such as:

• Rocker arms
• Camshafts (if applicable)
• Any other hardware that came with your purchase

Easy & Free Core Return Process

• Each purchase includes a prepaid core return label in a plastic sleeve on the box.
• Simply pack your core with all included components, attach the label, and drop it off with the carrier—no extra cost to you.
• Returned cores undergo inspection and recycling, ensuring maximum efficiency.

Customer Partnership & Sustainability

By returning your core and its components, you help maintain a reliable supply chain, ensuring we can continue offering top-quality products at the best prices. This process not only benefits your wallet but also contributes to a greener and more efficient automotive industry.

We appreciate your support in keeping our business and the industry running smoothly!

Warranty and Support:

• Enjoy peace of mind with a 2-year unlimited mileage warranty.
• Expert support is available at sales@heavydutypartscompany.com

Why Choose Heavy Duty Parts Company?: At Heavy Duty Parts Company, we are dedicated to excellence and customer satisfaction. Our L5P Duramax engines undergo extensive testing to exceed industry standards for reliability and performance.

Learn About Diesel Fuel Injectors

CHECK OUT OUR OTHER DIESEL CYLINDER HEADS HERE

LEARN ABOUT THE L5P ENGINE: HERE

Duramax 6.6L GM L5P Silverado Sierra Cylinder Heads