Brand New Pair 6.5 OHV GM Diesel Aftermarket Cylinder Heads (90° Angle) W/ Head Gasket Set and Bolts, Water Pump & Timing Set

Upgrade your GM, Chevy, or Hummer with our 6.5 OHV GM Diesel 90° Angle Cylinder Head Set. This high-quality set includes a complete cylinder head, head gasket, bolts, and a Water Pump & Timing Set for seamless installation. Perfect for GM diesel engines, this upgrade improves performance and durability, ensuring your engine runs smoothly for longer.

Why Choose Our 6.5 GM Diesel Cylinder Head Set?

• Superior Craftsmanship: Each cylinder head, head gasket, and set of bolts is meticulously manufactured or remanufactured to meet or exceed OEM specifications, ensuring a perfect fit and long-lasting reliability.
• Enhanced Durability: Built to withstand the high pressures and temperatures of diesel engines, these components are constructed from premium-grade materials for extended wear resistance.
• Improved Performance: Experience smoother engine operation, increased power, and better fuel efficiency with this complete, high-quality cylinder head replacement set.
• Water Pump & Timing Set Included: The addition of a Water Pump & Timing Set ensures that your engine operates efficiently, providing long-term durability and optimized performance.

Compatibility:
These cylinder heads fit the following vehicles:

• C Series Trucks Turbo and Non-Turbo
• G Series Vans Non-Turbo
• Hummer Non-Turbo
• K Series Trucks Turbo and Non-Turbo

Quality Assurance:
At Heavy Duty Parts Company, we ensure each cylinder head is thoroughly cleaned, inspected, and pressure tested for quality and reliability.

Warranty Information:
Heavy Duty Parts Company offers a two-year unlimited mileage warranty. A warranty card will be included with your invoice. Please read the warranty terms carefully:

• Parts warranty only – all original cylinder heads must be returned for warranty.

Diesel Tips For A Smooth Engine

Learn about the engine here

Upgrade your GM or Chevy with our new 6.5 OHV GM Diesel 90° Angle Cylinder Head, featuring a 90° angle and casting #567. These heads fit 1992-1999 C Series trucks, G Series vans, and K Series trucks. We quality test every head to ensure it’s ready for installation. These durable 6.5 OHV GM Diesel heads deliver optimal performance, keeping your vehicle running smoothly and efficiently.

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!