NAMURA ORNA-RA420215-WX Rd Piston Kit Bike 56.2MM

( Brand: Namura ), ( Manufacturer Part Number: ORNA-RA420215-WX ), ( Part Type: Piston )

Review NAMURA Yamaha Rd Dirt Bike Piston Kit 56.2mm fits LC 125 1975–1992

Introducing the Namura ORN-RA420215-WX piston kit, specifically designed for Yamaha RD 125 LC bikes manufactured between the years 1975 and 1992. This piston kit is an essential upgrade for riders looking to enhance the performance and durability of their bike's engine.

The kit includes four pistons, each one meticulously crafted with high-quality forged aluminum alloy. The piston diameter measures 56.2mm, ensuring a perfect fit for your Yamaha RD 125 LC bike. The piston crowns are finished with a superior coating that reduces friction and wear, allowing for smoother engine operation and improved combustion efficiency.

The piston rings are also included in this kit. These rings are made from a heat-resistant and durable material, ensuring a tight seal between the piston and the cylinder wall. The piston rings have been designed to minimize compression loss, resulting in increased power output and improved engine efficiency.

The skirts of the pistons are precision machined to ensure a perfect fit within the cylinder bore. The piston pins are made from high-strength steel and are precisely machined to provide a secure connection between the piston and the connecting rod.

The piston kit is also compatible with the stock crankshaft and conrod, making it a convenient and cost-effective upgrade option for Yamaha RD 125 LC bike owners. The installation process is straightforward, with clear instructions provided to ensure a hassle-free experience.

By upgrading to the Namura ORN-RA420215-WX piston kit, you can expect improved engine performance, increased power output, and enhanced durability. This piston kit is an excellent investment for any Yamaha RD 125 LC bike enthusiast looking to get the most out of their machine.

Pros and Cons of Buying a Namura OR-A420215-WX Piston Kit for a 1975-1992 Yamaha RD 125 LC Bike

The Namura OR-A420215-WX piston kit is a popular aftermarket option for those looking to upgrade or replace the pistons on their 1975-1992 Yamaha RD 125 LC bikes. This piston kit comes with a number of benefits and potential drawbacks. In this article, we will discuss the key pros and cons of purchasing this piston kit for your Yamaha RD 125 LC.

1. Enhanced Performance: The Namura piston kit is designed to provide improved performance compared to the stock pistons. This can result in increased horsepower, improved throttle response, and better overall engine efficiency.

2. Durability: The Namura pistons are made from high-quality materials, such as forged aluminum, which can help to increase the durability of the engine. This can be particularly beneficial for riders who put their bikes through heavy use or those who have experienced issues with the stock pistons.

3. Customization: The Namura piston kit offers riders the opportunity to customize their engine to their specific riding style and preferences. For example, riders can choose from a range of piston sizes and designs to optimize the engine for their desired power output and torque curve.

4. Cost-Effective: Compared to other aftermarket piston options, the Namura kit is relatively affordable. This can make it an attractive option for riders who are looking to improve their bike's performance without breaking the bank.

1. Installation Complexity: Installing the Namura piston kit can be a complex process, particularly for those who are not experienced in engine rebuilds. This may require the assistance of a professional mechanic or significant time and effort to complete the installation yourself.

2. Potential Compatibility Issues: While the Namura piston kit is designed to be compatible with a wide range of Yamaha RD 125 LC engines, there is still a risk of compatibility issues. This can result in engine damage or decreased performance if the pistons are not properly matched to the engine.

3. Potential Power Surge: The Namura piston kit is designed to provide improved performance, but this can also result in a power surge that may be too much for some riders to handle. This can be particularly dangerous for inexperienced riders or those who are not prepared for the increased power output.

The Namura OR-A420215-WX piston kit for the 1975-1992 Yamaha RD 125 LC offers a number of benefits, including enhanced performance, improved durability, and the opportunity for customization. However, it also comes with some potential drawbacks, such as installation complexity, compatibility issues, and the risk of a power surge. Ultimately, whether or not the Namura piston kit is right for you will depend on your specific riding style, experience level, and budget. If you are looking for a cost-effective way to improve your bike's performance and are willing to invest the time and effort into the installation process, then the Namura piston kit may be a worthwhile investment. However, if you are not experienced with engine rebuilds or are looking for a more turn-key solution, then you may want to consider other options.

If you are considering purchasing the Namura OR-A420215-WX piston kit for your 1975-1992 Yamaha RD 125 LC, it is recommended that you do your due diligence and thoroughly research the kit before making a purchase. This includes checking compatibility with your specific engine model, reviewing installation instructions, and assessing the potential benefits and risks of the kit. It is also recommended that you consider seeking the assistance of a professional mechanic to ensure a proper installation and to minimize the risk of compatibility issues or power surges. Ultimately, the decision to purchase the Namura piston kit should be based on your specific riding style, experience level, and budget.

Details:

I need to exchange an item. Credit or Debit Card. Parts without fitment are to be assumed universal and may require vehicle modification. This is helpful if you are buying multiple items.

Brand: Namura, model Number: ORNA-RA420215-WX. Piston Size: 56.2mm.

part #: ornara420215 prices

• $36.95-$62.36

specifications pistondon:

• for models: Lc, 125
• for makes: Yamaha
• for years: 1975-1992
• brand: Namura
• mpn: Orna-ra420215-wx
• part type: Piston

returns pistondon:

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

offer pistondon:

• started: March 8, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 2
• sold: 0

payments pistondon:

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

seller pistondon:

• rating: 99.9%
• city: Indiana, US
• # reviews: 79491

shipping pistondon:

• type: Fixed
• service: Standard
• transit: 3-5 Days
• cost: $0.00
• class: Standard

general pistondon:

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

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