NAMURA NX-40001-B Standard Piston Kit 53.95MM 54MM

( Brand: Namura ), ( Manufacturer Part Number: NX-40001-B ), ( Part Type: Piston )

Review NAMURA Standard Bore Size 53.95mm Piston Kit For Yamaha 54mm fits YZ125 2002–2004

The Namura NX-4001-B Piston Kit is a high-performance upgrade for the Yamaha YZ125 motorcycle models produced between 2002 and 2004. This piston kit is specifically designed for engines with a standard bore size of 53.95mm and a compression height of 54mm. Incorporating advanced engineering and manufacturing techniques, this piston kit promises reliable power enhancement for your YZ125.

The piston itself is crafted from forged aluminum, ensuring exceptional durability and strength. The combustion chamber is CNC-machined for precise dimensional accuracy, which results in optimal engine performance. The dome shape and edge geometry of the piston are engineered for enhanced combustion efficiency and improved power output.

The piston kit also includes an OEM-quality ring set. The rings are precision machined to fit perfectly within the piston grooves and provide efficient sealing. They are specifically designed for the increased power output generated by the upgraded piston.

This piston kit comes with a conventional pin and bushings setup, ensuring a snug fit and minimal wear and tear. The piston pin is precision-machined to maintain accuracy and durability. The included bushings are made from high-quality material, providing a consistent feel and smooth operation.

The Namura NX-4001-B Piston Kit offers several benefits for enthusiasts looking to enhance the performance of their Yamaha YZ125. It delivers improved combustion efficiency, increased power output, and a stronger and more durable design. When installed correctly, this piston kit can provide lasting performance upgrades for your high-performance dirt bike.

Please note that installing this piston kit, or any aftermarket upgrade, may require modifications or adjustments to the engine, intake or exhaust system, and other components. Always consult the instructions provided with the kit and consult with a professional mechanic if you are unsure about installation or require any additional guidance.

With its high-quality materials, expert engineering, and unwavering commitment to performance, the Namura NX-4001-B Piston Kit is an excellent investment for any Yamaha YZ125 owner seeking to elevate their riding experience.

Pros and Cons of Buying a Namura NX-40001-B Piston Kit for a Yamaha YZ125 (2002-2004)

1. Improved Performance: The Namura piston kit is designed specifically for the Yamaha YZ125 motorcycles from 2002 to 2004. This kit can help improve the performance by providing a better seal, reducing friction, and enhancing the combustion process.

2. High-Quality Material: The piston kit includes forged pistons made of high-grade aluminum alloy. Heat-treated rings made of chromium, silicon, and phosphorous add to the durability and longevity of the components.

3. Better Compatibility: This kit is manufactured to 53.95mm bore size for better compatibility with the stock engine, ensuring a seamless installation process.

4. Enhanced Engine Response: The Namura piston kit facilitates a stronger, more responsive engine due to its high-performance design, benefiting riders who value acceleration and performance.

5. Cost-Effective Solution: Investing in a piston kit like the Namura NX-40001-B can save you the cost of purchasing an entirely new engine or rebuilding the existing one, making it a cost-effective solution for riders looking to maximize the life and potential of their motorcycle.

1. Installation Complexity: Installing the new piston kit involves the disassembly of the engine, making it a time-consuming and complex process. If you do not possess the required technical knowledge and skills, consider seeking help from a professional mechanic.

2. Improper Installation Risks: Problems may arise if the piston kit is not installed correctly. Minor mistakes can result in damages to the engine components, compromising the performance, and requiring additional repairs or replacement of the damaged parts.

3. Expense: The cost of purchasing a Namura piston kit can be a drawback for those who have limited budgets. Instead of investing in an upgraded piston kit, some riders might prefer to invest their resources in other areas, such as new riding gear, accessories, or maintenance services.

4. Limited Longevity: Depending on the riding conditions and the rider, a piston kit may not last as long as a new engine. Factors like excessive engine heat, poor maintenance practices, and high-stress riding may contribute to the shorter lifespan of these components.

The Namura NX-40001-B piston kit carries its own list of advantages and disadvantages. Prospective buyers should assess their priorities, financial constraints, and experience to make an informed decision. In summary, this piston kit can result in improved performance, durability, and engine compatibility. However, it presents installation challenges, maintenance requirements, and expenses.

If you are a frequent or competitive rider, heavily invested in the Yamaha YZ125 motorcycle, and looking to squeeze more performance potential out of your engine, then the Namura NX-40001-B piston kit could be a worthwhile investment.

For those with limited resources or those looking for a maintenance-free solution, it might be wiser to explore other alternatives, such as periodic service and maintenance or even upgrading to a newer model of the Yamaha YZ125. Before making a definitive decision, ensure you weigh all aspects carefully and consult with a qualified mechanic if needed.

Details:

Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life. Kit is for standard bore size - 54.00mm. Piston dome is anodized for superior heat resistance and longer lifespan. This is a like new piston.

Kit Includes piston pin Does not include ring or clips you get exactly what is pictured. There is no warranty. Made in Taiwan. Size B piston is 53.95mm.

Manufactured by Namura. Compression ratio of 10.8:1. Compatible with Yamaha model's below: 2002 YZ125. You can use the Ask a Question link near bottom of every listing.

part #: nx40001 prices

• $70.16-$87.51

specifications pistondon:

• for models: Yz125
• for makes: Yamaha
• for years: 2002-2004
• brand: Namura
• mpn: Nx-40001-b
• part type: Piston

seller pistondon:

• # reviews: 7604
• city: Suamico, Wisconsin
• rating: 97.6%

offer pistondon:

• availability: In Stock
• options: Ship-to-home
• started: January 24, 2025
• quantity: 1
• sold: 0

payments pistondon:

• credit card: Mastercard
• wallet: Google-pay
• other

returns pistondon:

• policy: No Returns

general pistondon:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
• condition: New other see details

shipping pistondon:

• service: Standard
• cost: $0.00
• type: Fixed
• transit: 4-7 Days
• class: Standard

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