NAMURA NA-40000-6R Piston Rings 65.45MM

( Brand: Namura ), ( Manufacturer Part Number: NA-40000-6R ), ( Type: Piston Ring ), ( Items Included: Piston Rings )

Review NAMURA Motorcycle 65.45mm Piston Rings For Yamaha fits RZ350 1984–1985

Introducing the Namura NA-40000-6R piston rings, specifically designed for Yamaha RZ350 motorcycles manufactured between 1984 and 1985. These high-performance piston rings are engineered to deliver exceptional durability and reliability, ensuring optimal engine performance.

The Namura NA-40000-6R piston rings are made from a superior material composition, which includes a compressive ring made of low expansion alloy steel. This material ensures a perfect seal between the piston and cylinder wall, preventing combustion gases from escaping and minimizing blowby. The rings also feature a groove on the outside edge of the top compression ring, enhancing oil control for a more efficient combustion process.

The rings have a diameter of 65.45mm, making them an ideal fit for the Yamaha RZ350 engine. Each set includes four piston rings: a top compression ring, two oil control rings, and an oil scraper ring. The top compression ring is designed to create maximum compression, while the oil control rings ensure proper lubrication and cooling. The oil scraper ring, located at the bottom of the piston, collects and scrapes excess oil from the cylinder wall, preventing it from mixing with the fuel-air mixture.

The Namura NA-40000-6R piston rings undergo rigorous testing to ensure they meet the highest standards for quality and durability. These rings have been proven to increase power output, improve fuel efficiency, and reduce engine wear. Installing these rings is a straightforward process and can be done by following the instructions in your Yamaha RZ350 service manual.

In summary, the Namura NA-40000-6R piston rings are a must-have upgrade for Yamaha RZ350 motorcycles from 1984 to 1985. These high-performance rings are designed to enhance engine performance, improve fuel efficiency, and extend the life of your engine. Trust the expertise of Namura to provide you with the best piston rings for your Yamaha RZ350.

The Namura NA-40000-6R piston rings are aftermarket rings designed for use in Yamaha RZ350 motorcycles manufactured between 1984 and 1985. Here are some potential pros and cons of purchasing these rings for your motorcycle:

1. Cost-Effective: Aftermarket piston rings like the Namura NA-40000-6R are generally more affordable than OEM (original equipment manufacturer) rings. This can be a significant advantage for motorcycle owners who are looking to save money on repairs.

2. Availability: Aftermarket parts like these rings are often easier to find and purchase than OEM parts. This can be especially important for older motorcycles like the Yamaha RZ350, where obtaining OEM parts may be challenging.

3. Performance: Some riders report improved engine performance after installing aftermarket piston rings. This can be due to the rings being made from higher quality materials or having a better design.

4. Customization: Aftermarket parts like these rings offer the opportunity for customization. For example, some riders may prefer rings with a specific material or coating that is not available from the OEM.

1. Quality Concerns: Some aftermarket parts may not be of the same quality as OEM parts. This can be a concern for motorcycle owners who want to ensure the longevity and reliability of their engine.

2. Compatibility: Aftermarket parts like piston rings may not be a perfect fit for every engine. This can lead to issues such as ring end gap, which can affect engine performance and longevity.

3. Installation: Installing aftermarket piston rings can be more complicated than installing OEM rings. This is because the aftermarket rings may not fit as perfectly as the OEM rings, requiring additional adjustments and fine-tuning.

4. Warranty: OEM parts often come with a warranty, whereas aftermarket parts may not. This can be a concern for motorcycle owners who want the peace of mind that comes with a warranty.

When considering purchasing aftermarket piston rings like the Namura NA-40000-6R for your Yamaha RZ350, it is important to weigh the potential benefits against the potential drawbacks. While aftermarket rings can offer cost savings, increased availability, potential performance improvements, and customization options, they also come with quality concerns, compatibility issues, installation complications, and the lack of a warranty. Ultimately, the decision to purchase aftermarket piston rings should be based on your individual needs, preferences, and budget. If you value the peace of mind that comes with a warranty and the assurance of perfect fit and quality, then OEM rings may be the better choice for you. However, if you are comfortable with the potential risks and are looking for cost savings or customization options, then aftermarket rings may be a viable option.

If you are considering purchasing aftermarket piston rings for your Yamaha RZ350, I would recommend doing thorough research on the specific rings you are considering, as well as the reputation of the manufacturer. Look for reviews from other riders who have used the same rings, and consider purchasing from a reputable dealer or retailer. Additionally, be prepared for the potential need for additional adjustments or fine-tuning during installation, and consider having a professional mechanic assist with the installation if you are not confident in your abilities. Finally, consider the potential impact on your engine's performance and longevity, and weigh the potential benefits against the potential risks before making your decision.

Details:

Specifications: Part: Piston Rings, Size: 65.45mm, Notes: Skirts are 20-percent thicker than OEM. CRU Products was started by Cycles R Us in 2009. Product Features Compression rings are manufactured from either a highly ductile cast iron, or stainless steel alloy. Two scraper rails and a single expansion ring.

Combined shipping is available for multiple items. Oil rings 4-stroke applications only consist of three separate components. Fits:Make: model: Year: Yamaha's. Shipping: Items are shipped within a timely manner.

The expansion ring in manufactured from stainless steel while the scraper rails are either a highly ductile cast iron or alloy.

part #: na400006r prices

• $17.72-$21.99

specifications pistondon:

• for models: Rz350
• for makes: Yamaha
• for years: 1984-1985
• brand: Namura
• mpn: Na-40000-6r
• type: Piston Ring
• items included: Piston Rings

returns pistondon:

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

offer pistondon:

• options: Ship-to-home
• started: May 16, 2026
• sold: 0
• availability: In Stock
• quantity: 4

payments pistondon:

• credit card: Diners-club
• other
• wallet: Paypal

shipping pistondon:

• class: Standard
• transit: 5-8 Days
• cost: $0.00
• type: Fixed
• service: Standard

general pistondon:

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

seller pistondon:

• rating: 99.9%
• city: Chippewa Lake, Ohio
• # reviews: 116736

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