Recommended buying from here, it was really quick and easy

Howard T, Minnesota

New Complete Nissan K21 K25 Aluminum Forklift Cylinder Head

$475.00

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Additional Info

Upgrade your forklift’s engine with the New Complete Nissan K21 Cylinder Head. Engineered for precision and durability, this high-quality, brand-new cylinder head is designed specifically for Nissan K21 forklift engines. Made from lightweight, high-strength aluminum, this cylinder head ensures efficient engine performance and longevity, making it the perfect replacement for damaged or worn-out parts.

This cylinder head is fully assembled and ready for installation, so you won’t need to worry about any additional machining or extra parts. It offers an easy solution for restoring the functionality of your forklift engine, helping you avoid costly downtime and repairs.


Key Features of the New Nissan K21 Cylinder Head:

  • Brand New: This is a brand-new, OEM-quality cylinder head for long-lasting, reliable performance.
  • Aluminum Construction: Crafted from durable, lightweight aluminum for superior heat dissipation and reduced weight.
  • Perfect Fit: Designed specifically for Nissan K21 forklift engines, ensuring an exact fit and optimal performance.
  • Fully Assembled: The cylinder head comes fully loaded with valves and springs.
  • OEM Quality: Manufactured to OEM specifications to ensure the highest standards of quality and reliability.
  • Cost-Effective Solution: With this high-quality replacement, you get the reliability and performance of a brand-new part without the expensive price tag.

Vehicle Compatibility

The New Nissan K21 Cylinder Head is compatible with the following engine models:

  • Nissan K21 Forklift Engine

Before purchasing, be sure to verify your forklift’s engine model and specifications for compatibility.


Why Choose This Nissan K21 Cylinder Head?

  • OEM Quality: Manufactured to meet the exact specifications of the original part, ensuring optimal performance and durability.
  • High Performance: The aluminum material offers superior thermal conductivity, improving engine cooling and performance, especially in demanding industrial environments.
  • Cost-Effective: A brand-new cylinder head provides excellent value for money, offering the same reliability as original parts at an affordable price.
  • Easy Installation: Fully assembled and ready to install, eliminating the need for extra work and ensuring a smooth repair process.
  • Long-Lasting: Built to withstand the demands of heavy-duty forklift operations, providing years of dependable service with minimal maintenance required.

Order Now!

Replace your damaged cylinder head with the New Nissan K21 Cylinder Head for improved engine performance, longevity, and overall reliability. Whether you’re replacing a worn-out part or upgrading your forklift’s engine, this new cylinder head provides the ideal solution. Order today to keep your forklift running at peak efficiency and minimize costly downtime!

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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Nissan

★★★★★

“These guys know their stuff when it comes to cummins, they knew what head number I needed and gave me a quote on the spot”

Raymond Adelante, Florida

★★★★★

“They were nice to talk to on the phone and were easy to deal with, especially since I’ve never ordered something like this before! Thank you”

Jenifer Longarden, Ohio

★★★★★

“Local shop recommended buying from here, it was really quick and easy”

Howard Trent, Minnesota

Dedicated to Customer Satisfaction

What sets us apart from the competition is our dedication to customer satisfaction. We strive to make your shopping experience as seamless and convenient as possible. Our user-friendly online platform allows you to browse our comprehensive inventory, compare products, and place orders with ease. With secure payment options and swift shipping, you can trust that your order will arrive promptly, minimizing downtime and maximizing productivity.