Remanufactured GM 3.6L Pair Cylinder Heads 2004-2020 with Head Gasket Set and Bolts

Please include your year make and model when ordering!

Restore your GM 3.6L engine’s performance with our high-quality remanufactured GM 3.6L heads, now available with a head gasket set and bolts for added convenience. These cylinder heads are designed to meet or exceed OEM specifications, ensuring a seamless fit and reliable performance for your GM vehicle. Whether you’re repairing a damaged head or performing an engine rebuild, our remanufactured heads offer exceptional value, durability, and long-lasting reliability.

Key Features:

• OEM Specifications: Remanufactured to meet or exceed OEM standards for quality and performance.
• Durability: Thoroughly inspected and tested to ensure long-lasting reliability and functionality.
• Complete Package: Includes a head gasket set and bolts for easy installation and quick engine restoration.
• Custom Fit: Ensure compatibility by providing the casting number and front camshaft cap style (inside or outside thrust).
• Engine Compatibility: Fits a wide range of GM 3.6L engine models.

Why Choose Our Remanufactured GM 3.6L Cylinder Heads?

• Cost-Effective: A budget-friendly alternative to purchasing new heads without compromising on quality.
• Easy Installation: Ready for installation, ensuring a quick and hassle-free setup.
• Reliability: Designed to offer a perfect fit, helping to restore engine power and performance.

Compatibility:
These remanufactured GM 3.6L cylinder heads are designed for various GM vehicles equipped with the 3.6L engine. Please verify engine specifications before placing your order to ensure the correct fit.

Order Today:
Don’t let engine issues get worse! Order your remanufactured GM 3.6L heads with a head gasket set and bolts today, and enjoy fast and reliable shipping. For compatibility, remember to provide your casting number and camshaft cap style during checkout.

GM 3.6L Cylinder Head Fitment

2004–2011 (LY7 Engines, Castings 12581596 / 12581597 / 12600041 / 12600045)

Right Side Applications

• Buick Allure 2005–2008 (3.6L LY7, VIN 7)
• Saturn Aura 2007–2009 (3.6L LY7, VIN 7)
• Cadillac CTS 2004–2009 (3.6L LY7, VIN 7)
• Chevrolet Equinox 2008–2009 (3.6L LY7, VIN 7)
• Pontiac G6 2007–2009 (3.6L LY7, VIN 7)
• Pontiac G8 2008–2009 (3.6L LY7, VIN 7)
• Buick LaCrosse 2005–2008 (3.6L LY7, VIN 7)
• Chevrolet Malibu 2008–2012 (3.6L LY7, VIN 7)
• Buick Rendezvous 2004–2006 (3.6L LY7, VIN 7)
• Cadillac SRX 2004–2009 (3.6L LY7, VIN 7)
• Cadillac STS 2005–2007 (3.6L LY7, VIN 7)
• Pontiac Torrent 2008–2009 (3.6L LY7, VIN 7)
• Saturn Vue 2008–2010 (3.6L LY7, VIN 7)

Left Side Applications
(same models/years as above — casting 12581597 / 12600041)

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2008–2011 (LLT Direct Injection)

Right Side Applications

• Cadillac CTS 2008–2011 (3.6L LLT, VIN V/D)
• Cadillac STS 2008–2011 (3.6L LLT)
• Chevrolet Traverse 2009–2011 (3.6L)
• GMC Acadia 2009–2011 (3.6L)
• Buick Enclave 2009–2011 (3.6L)
• Saturn Outlook 2009–2010 (3.6L)
• Saturn Vue 2009 (3.6L, VIN B, LCS)
• Buick Allure / LaCrosse 2010–2011 (3.6L)
• Chevrolet Camaro 2010–2011 (3.6L)

Left Side Applications

• Same models/years as above

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2012–2020 (LFX Engines)

Right Side Applications

• Cadillac ATS 2013–2015 (3.6L, California NU5 / Federal NT7)
• Chevrolet Camaro 2012–2015 (3.6L)
• GMC Canyon 2015–2016 (3.6L)
• Chevrolet Caprice 2012–2017 (3.6L)
• Chevrolet Colorado 2015–2016 (3.6L)
• Cadillac CTS 2012–2015 (3.6L LFX)
• Chevrolet Equinox 2013–2017 (3.6L)
• Chevrolet Impala 2012–2020 (3.6L, VIN 1 & W styles)
• Buick LaCrosse 2012–2016 (3.6L, NU5 / NT7)
• Cadillac SRX 2012–2016 (3.6L)
• GMC Terrain 2013–2017 (3.6L)
• Cadillac XTS 2013–2019 (3.6L LFX)

Left Side Applications

• Same models/years as above

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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