Remanufactured GM Chevrolet Trailblazer 4.2L Cylinder Head 2002-2005

Description:
Looking for a quality replacement part for your engine? Our remanufactured GM 4.2L cylinder head restores engine performance, providing durability and efficiency. Perfect for several GM and Isuzu models from 2002-2005, including the Chevy Trailblazer, this part meets or exceeds OEM specifications. Whether you’re repairing a damaged engine or rebuilding, this cylinder head offers a cost-effective solution to get your vehicle back on track. A core return is required for this purchase.

Our team uses advanced remanufacturing techniques to deliver a high-quality cylinder head that performs like new. Each part undergoes thorough inspection and testing to ensure long-lasting reliability.

Remanufactured GM 4.2L Cylinder Head Vehicle Fitment

This remanufactured cylinder head is compatible with the following models:

• Chevy TrailBlazer (2002-2005)
• Chevy TrailBlazer EXT (2002-2005)
• Buick Rainier (2004)
• GMC Truck Envoy (2002-2005)
• GMC Truck Envoy XL (2002-2005)
• GMC Truck Envoy XUV (2004-2005)
• Isuzu Ascender (2004-2005)

These vehicles, equipped with the 4.2L engine, will benefit from a perfect fit and easy installation.

Why Choose Our Remanufactured Cylinder Head?

Here’s why this part is an excellent choice for your engine:

• OEM Specifications: Meets or exceeds OEM standards.
• Rigorous Testing: Thoroughly tested for optimal performance and reliability.
• Affordable: A reliable and cost-effective replacement option.
• Versatile Compatibility: Fits several models from Chevy, GMC, Buick, and Isuzu.

Key Features

• Engine Type: 4.2L Inline 6 Cylinder
• Condition: Remanufactured, inspected, and tested
• Application: Compatible with 2002-2005 Chevy, GMC, Buick, and Isuzu vehicles with 4.2L engine
• Performance: Meets or exceeds OEM specifications

Benefits of Choosing a Remanufactured Cylinder Head

Opting for a remanufactured cylinder head provides a reliable solution that doesn’t compromise on quality. It’s rigorously tested to ensure it meets OEM standards, offering lasting durability for your engine.

Order Your Remanufactured GM 4.2L Cylinder Head Today

Don’t let engine issues slow you down. Heavy Duty Parts Company offers high-quality, remanufactured engine parts at great prices. Order your remanufactured cylinder head today and restore your engine’s performance!

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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