New Complete Pair GM GMC Chevrolet 6.6L OHV Duramax Diesel LBZ Cylinder Heads 2006-2010 W/ Head Gasket Set & Bolts, Water Pump & Timing Set

When it comes to maintaining or upgrading your Duramax 6.6L cylinder heads, having the right components is crucial for performance and longevity. This new pair of LMM Duramax Cylinder Heads, complete with head gasket set & bolts, timing kits and a water pump, ensures your engine runs smoothly, efficiently, and reliably—even under the toughest conditions.

Engineered for Superior Performance & Durability

Built to OEM standards and beyond, these cylinder heads feature precision machining for a perfect fit. Optimized airflow enhances power output, fuel efficiency, and overall engine performance, making them ideal for towing, hauling, and heavy-duty use.

Complete Solution: Cylinder Heads + Gasket Set & Bolts + Timing Kits & Water Pump

This all-in-one package includes:

• LMM Duramax Cylinder Heads – High-quality construction for durability and efficiency.
• Complete Set: Includes head gasket set & bolts, water pump & timing set for peak performance and longevity

Why Choose This Duramax Upgrade?

1. Extreme Durability – Built to withstand high temperatures, pressure, and heavy loads.
2. Optimized Airflow – Improved intake/exhaust flow for better combustion, throttle response, and fuel economy.
3. Direct OEM Replacement – No modifications needed—easy installation for minimal downtime.
4. Heavy-Duty Ready – Perfect for work trucks, towing, and off-road applications.

Key Features:

• Precision-machined for an exact OEM fit
• Increased power and fuel efficiency
• Heavy-duty design for long-lasting performance
• Complete set with timing kits and water pump
• Core return required

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!

Upgrade your 6.6L diesel engine with this New Pair of LMM Duramax Cylinder Heads to boost your engine’s performance, durability, and efficiency. Whether you’re looking for an OEM replacement or an upgrade that delivers real-world benefits, these cylinder heads provide everything you need for long-lasting, reliable performance.

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