NAMURA ORNA-RA421795-WX Piston Kit Bike 66.36MM

( Brand: Namura ), ( Manufacturer Part Number: ORNA-RA421795-WX ), ( Part Type: Piston )

Review NAMURA Honda Dirt Bike Piston Kit 66.36mm fits CR250 1986–1996

Namura OR-A421795 WX Piston Kit for Honda CR250 (1986-1996)

The Namura OR-A421795 WX piston kit is an excellent upgrade solution for Honda CR250 motorcycle owners with models from 1986 to 1996. This piston set is designed to deliver superior performance, durability, and reliability, ensuring a satisfying riding experience.

Each piston in this kit is meticulously crafted from high-quality forged aluminum alloy, ensuring a strong and lightweight construction. The piston crown features a unique and efficient combustion chamber design, optimized for better fuel mixture ignition and improved engine efficiency. Additionally, the piston skirt is designed with a reduced friction coating to minimize wear and reduce engine drag, leading to improved power output and fuel economy.

The piston rings included in this kit are made of a high-performance, heat-resistant material, ensuring a snug fit and efficient sealing. The piston rings are also designed with a radial groove pattern, which reduces friction and optimizes ring sealing, ultimately leading to improved engine performance and reduced emissions.

This piston kit also comes with a set of wrist pins and piston pin bushings. The wrist pins are made of high-strength material, ensuring a secure connection between the piston and the connecting rod. The piston pin bushings are designed with a precision fit, ensuring a smooth and efficient transfer of power from the piston to the connecting rod.

Installing this piston kit is a straightforward process. Each piston comes with a compatible ring gap tool, making it easy to set the proper ring gap for optimal engine performance. Additionally, the kit includes detailed installation instructions, ensuring a hassle-free installation process.

In conclusion, the Namura OR-A421795 WX piston kit is an excellent upgrade solution for Honda CR250 motorcycle owners with models from 1986 to 1996. This piston set is designed to deliver superior performance, durability, and reliability, ensuring a satisfying riding experience. With its high-quality materials, efficient design, and easy installation process, this piston kit is an investment that will pay off in the long run.

Pros and Cons of Buying a Namura OR-A421795-WX Piston Kit for a 1986-1996 Honda CR250

a. High-quality piston kit: Namura is a well-known brand in the motorcycle industry, known for producing high-quality aftermarket parts. This piston kit is no exception.

b. Improved engine performance: Installing this piston kit can lead to improved engine performance, particularly in terms of increased horsepower and torque.

c. OEM-equivalent specifications: The piston kit is designed to meet OEM (Original Equipment Manufacturer) specifications, ensuring a proper fit and function.

d. Cost-effective: Compared to buying a new OEM piston kit or a rebuilt engine, this aftermarket piston kit is a more cost-effective solution for restoring your Honda CR250's engine.

a. Installation complexity: Installing a piston kit can be a complex and time-consuming process, requiring specialized tools and knowledge.

b. Potential compatibility issues: While the piston kit is designed to fit Honda CR250 models from 1986 to 1996, there is still a possibility of compatibility issues arising due to engine variations within this model range.

c. Risk of damage during installation: There's a risk of damaging other engine components during the installation process, which could lead to additional repair costs.

The Namura OR-A421795-WX piston kit for the 1986-1996 Honda CR250 offers several advantages, including improved engine performance, high-quality manufacturing, and cost-effectiveness. However, it also comes with potential complexities, compatibility issues, and risks during installation.

If you're comfortable with the installation process and understand the potential risks, the Namura piston kit can be a worthwhile investment for restoring the performance of your Honda CR250 engine. However, if you're not confident in your mechanical abilities, it may be wiser to seek professional help to ensure a successful installation. Additionally, thoroughly researching the piston kit's compatibility with your specific engine model is essential to minimize any potential issues.

Details:

I need to exchange an item. Credit or Debit Card. Piston Size: 66.36mm. 1986 - 1996 Honda CR250 Dirt Bike Namura Piston Kit 66.36mm: Kit Contains: One piston, Matching Ring, Pin and Cir clips.

Parts without fitment are to be assumed universal and may require vehicle modification. Compatibility: Honda CR250R 1986 - 1996. This is helpful if you are buying multiple items.: Brand: Namura, model Number: ORNA-RA421795-WX.

part #: ornara421795 price

• $77.14

specifications pistondon:

• for models: Cr250
• for makes: Honda
• for years: 1986-1996
• brand: Namura
• mpn: Orna-ra421795-wx
• part type: Piston

seller pistondon:

• # reviews: 64390
• city: Indiana, US
• rating: 99.5%

offer pistondon:

• options: Ship-to-home
• quantity: 2
• started: July 18, 2025
• sold: 0
• availability: In Stock

shipping pistondon:

• class: Standard
• type: Fixed
• service: Standard
• cost: $0.00
• transit: 3-6 Days

general pistondon:

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

returns pistondon:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

payments pistondon:

• credit card: Mastercard
• wallet: Paypal
• other

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