Remanufactured Nissan Sentra 1.8L Cylinder Head Cast # 8U3 with Head Gasket Set and Bolts

Restore your Nissan Sentra’s performance with our remanufactured 1.8L DOHC cylinder head, specifically designed for model years 2000 to 2006 with the QD18D engine. Featuring Nissan Sentra 1.8L Cast # 8U3, this cylinder head is now available with a head gasket set and bolts, providing everything you need for a complete engine rebuild. Enjoy exceptional quality, reliability, and optimal engine performance with this comprehensive solution.

Key Features:

• Vehicle Compatibility: Designed for Nissan Sentra (2003-2006) with the QD18D engine.
• OEM Precision: Expertly remanufactured to meet original equipment manufacturer (OEM) specifications, ensuring a perfect fit and optimal performance.
• Premium Materials: Reconditioned using high-quality materials to endure extreme temperatures and pressures, ensuring long-lasting durability.
• Enhanced Efficiency: Engineered to improve engine performance and fuel efficiency, restoring your Sentra’s performance.
• Thorough Inspection: Each cylinder head undergoes rigorous testing, including pressure checks and crack detection, guaranteeing reliability.

Important Note: This product is sold exclusively by casting number (8U3). If you’re unsure about your casting number, please provide your vehicle’s VIN for accurate identification.

Why Choose Heavy Duty Parts Company?

• Quality and Precision: We thoroughly clean, inspect, and pressure-test each cylinder head to meet the highest standards.
• Enhanced Performance: Our remanufactured cylinder heads restore lost engine power and improve fuel efficiency.
• Long-Lasting Reliability: Built with advanced materials and technology, our cylinder heads are engineered for durability and performance.

Shipping Information:

• Continental U.S.: Shipping rates apply to the continental U.S. only. For Alaska, Hawaii, Guam, Virgin Islands, and Puerto Rico, please 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 for accurate shipping fees.

Warranty Information:

• Coverage: Two-year unlimited mileage parts warranty.
• Warranty Terms: Warranty covers parts only; labor and incidental costs are not covered. Warranty void if damage is caused by improper installation, overheating, abuse, or neglect. The heat tab must remain intact and unaltered.

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!

Additional Resources

Learn About the Comparison Between 2003 & 2006 Nissan Sentra Here

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