Remanufactured GM Chevrolet Colorado Canyon H3 Cylinder Head 3.5L W/ Head Gasket Set & Bolts, Water Pump & Timing Set

Restore Your Engine’s Power & Efficiency
If your Chevrolet Colorado is experiencing performance issues—such as reduced power, increased oil consumption, or rough operation—the cylinder head may be to blame. A damaged or worn cylinder head can lead to significant engine problems, including total failure. This remanufactured GM Chevrolet Colorado 3.5L cylinder head is designed to restore your engine to factory specifications, ensuring smooth performance and long-term reliability.

Complete Engine Restoration Solution
For a more comprehensive engine rebuild, we also offer head gasket set & bolts, timing kits and a water pump, essential for maintaining proper engine function and preventing further issues. Pairing these components with your remanufactured cylinder head ensures optimal performance, better fuel efficiency, and extended engine life.

Expertly Remanufactured for Maximum Reliability
This remanufactured cylinder head meets or exceeds OEM standards, guaranteeing a perfect fit and exceptional durability. Designed for 2004-2006 Chevrolet Colorado 3.5L engines, it restores lost compression and improves overall efficiency. Whether you’re rebuilding your engine or replacing a damaged head, this high-quality component—along with our timing kits and water pump—ensures your vehicle runs like new.

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Key Features of the Remanufactured Cylinder Head

Perfect Fit for Chevrolet Colorado 3.5L Engines (2004-2006)

This cylinder head is designed specifically for Chevrolet Colorado models with 3.5L I5 engines, ensuring compatibility and a seamless installation process.

Premium Remanufactured Quality

We fully remanufacture each cylinder head to match or exceed the original equipment manufacturer (OEM) standards. This guarantees the highest quality and performance, ensuring the cylinder head delivers dependable results for years to come.

Engine Performance Restoration

By restoring compression, this cylinder head helps improve engine power, reduce oil consumption, and enhance overall efficiency, ensuring your vehicle performs like new.

Durable Construction

Crafted from high-quality materials, this remanufactured cylinder head is built to last. It’s engineered to handle the rigors of everyday driving, providing long-term durability and reliability.

Simple, No-Hassle Installation

This cylinder head is a direct replacement for your existing part, meaning you can install it without requiring special modifications. Save time and effort with a part that fits right in.

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Why Choose Our Remanufactured Cylinder Head?

Affordable and Reliable Solution
Choosing a remanufactured cylinder head offers a cost-effective alternative to purchasing brand-new parts. By restoring the cylinder head to its original specifications, we ensure it performs reliably at a fraction of the cost of new parts.

Tested for Maximum Performance
Each remanufactured cylinder head undergoes a thorough inspection and testing process. This rigorous procedure ensures that the part delivers the performance and durability you expect from a high-quality replacement.

Engineered to Restore Power and Efficiency
If you’re experiencing lost engine power or poor performance, this cylinder head will restore compression, improve efficiency, and return your engine to peak performance.

Eco-Friendly Choice
Remanufacturing is an environmentally friendly process that reduces waste and promotes sustainability. By choosing a remanufactured cylinder head, you’re not only saving money but also making a positive impact on the environment.

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Key Benefits

• Cost-Effective Solution: Save money while maintaining top engine performance.
• Restore Engine Power: Fix compression issues and improve engine efficiency.
• Built to Last: High-quality construction ensures long-term durability and reliability.
• Eco-Friendly: Remanufacturing reduces waste, promoting sustainability.
• Easy to Install: Direct replacement for a hassle-free installation experience.
• Core return required

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Installation and Warranty Information

Installation: This remanufactured GM Chevrolet Colorado 3.5L cylinder head is a direct replacement for easy installation. Professional installation is recommended.

Warranty: 2-year warranty against defects in material or workmanship. Excludes damage from improper installation or misuse. Contact us with proof of purchase for claims.

Heavy Duty Parts Company – Core Returns Policy

Effective December 17, 2025

At Heavy Duty Parts Company, core returns are essential to our ability to provide high-quality, cost-effective cylinder heads. Returned cores supply critical components—such as keepers, springs, and retainers—that are vital to proper engine performance and allow us to maintain OEM-level quality.

No Upfront Core Charge

Unlike many suppliers, we do not charge a core fee upfront. Instead, we rely on customers to return their used cores within the required timeframe.

Core Return Requirements

• Cores are due within 30 days of the purchase date

• If a core is not returned within 60 days, the product warranty is void

• Unreturned cores will be charged as follows:

  • Cylinder heads under $600: $200 per unreturned core

  • Cylinder heads $600 and above: $400 per unreturned core

Customers needing additional time may contact us to request an extension. Approved extensions will prevent core charges from being applied.

Core Return Process

Cylinder heads are shipped with prepaid core return labels included in packets attached to the outside of each box. If labels are missing, customers should contact us for replacements prior to returning the core.

Core Eligibility

Some cylinder heads do not require a core return. In certain cases, core requirements may be waived at our discretion.

Why Core Returns Matter

• Reused core components help maintain OEM-quality standards

• Core returns allow us to keep pricing competitive

• Recycling cores supports sustainability by reducing waste and conserving resources

This policy applies to all purchases made on or after December 17, 2025.

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!

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