Remanufactured Subaru 2.5L L25 Q25 Z25 Cylinder Head (Right Side)

Upgrade your Subaru with our high-quality remanufactured 2.5L L25 Q25 Z25 right side cylinder head. Built to OE specifications, this head offers superior performance, durability, and reliability, seamlessly enhancing your vehicle’s power and efficiency.

Key Features:

• Remanufactured to OEM Standards: Each right side cylinder head is carefully inspected, cleaned, and rebuilt to meet the original equipment manufacturer’s standards, ensuring consistent quality.
• High-Performance Components: Features precision-machined valve seats, upgraded sealing surfaces, and enhanced valve springs for better efficiency and extended lifespan.
• Comprehensive Testing: Every unit undergoes rigorous leak, crack, and valve seat alignment testing to guarantee optimal performance.
• Ready to Install: Comes as a complete, fully assembled head, ready for installation with no additional modifications required.
• Core Return Required

Vehicle Compatibility:

• BAJA 2003-2006 (2.5L, 4 cylinder), w/o turbo
• FORESTER 1999-2004 w/o Turbo
• IMPREZA 1999-2004 2.5L, w/o turbo
• LEGACY 2000-2004 SOHC (2.5L), w/o turbo

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!

Heavy Duty Parts Company – Quality You Can Trust

At Heavy Duty Parts Company, we take quality seriously. We thoroughly clean, inspect, and pressure test each cylinder head to ensure it meets the highest standards. Our state-of-the-art equipment is used for all seat and guide work, resurfacing, and vacuum testing. Whether you’re replacing a worn cylinder head or upgrading for enhanced performance, our cylinder heads exceed OEM standards, ensuring reliability and efficiency.

Shipping Information:

• Continental U.S.: Shipping rates apply to the continental U.S. only. For Alaska, Hawaii, Guam, Virgin Islands, and Puerto Rico, contact us for shipping rates.
• International Shipping: We ship worldwide, with insurance, packaging, and handling included in the shipping price. International customers, please provide your city, country, and postal code when inquiring about shipping fees.

Warranty Information:

• Coverage: Heavy Duty Parts Company provides a two-year unlimited mileage parts warranty. A warranty card will be included with your invoice.
• Terms: By purchasing the cylinder head, you agree to the following warranty terms:
  • Keep the heat tab intact and unaltered.
  • Include a copy of the invoice and a Return Authorization number for returns.
  • The warranty covers parts only; labor and incidental costs are not covered.
  • The warranty does not cover damage caused by improper installation, overheating, abuse, or neglect.

Additional Resources

Learn About the comparison between 1999 Subaru Impreza and 2004 Subaru Impreza Here

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Order Now

Ready to upgrade your vehicle? Order your premium Remanufactured Subaru 2.5L L25 Q25 Z25 Cylinder Heads today and experience enhanced performance and reliability.

For questions or assistance, please contact our customer service team by email at sales@heavydutypartscompany.com.