NAMURA NA-40005R Piston Rings Big Wheel 82.95-83MM

( Brand: Namura ), ( Manufacturer Part Number: NA-40005R ), ( Type: Piston Ring ), ( Items Included: Piston Rings )

Review NAMURA Motorcycle 82.95-83mm Piston Rings For Yamaha Big Wheel fits 350 1987–1988

Introducing the Namura NA-4005R piston rings, specifically designed for Yamaha Big Wheel 350 motorcycles manufactured between 1987 and 1988. These piston rings are an essential replacement part that ensures the proper sealing of the combustion chamber for optimal engine performance.

The NA-4005R piston rings are engineered using high-quality materials that provide excellent resistance to heat, pressure, and wear. The rings consist of a compressive ring, an oil control ring, and a top ring. Each ring is meticulously manufactured to precise dimensions for a perfect fit and optimal sealing.

The compressive ring, also known as the piston ring groove seal, is designed to prevent combustion gases from leaking past the piston. Its cross-sectional shape ensures maximum contact with the cylinder wall, providing a tight seal and enhancing engine efficiency.

The oil control ring, located just above the compressive ring, is responsible for maintaining engine oil pressure and preventing oil from leaking past the piston. Its unique design allows for optimal oil control while minimizing friction, ensuring that your engine stays lubricated for optimal performance.

The top ring, also known as the piston crown ring, sits at the very top of the piston. Its primary function is to prevent the combustion gases from escaping through the piston top. The NA-4005R top ring is designed to provide a tight seal while ensuring minimal friction, allowing for smooth engine operation.

In summary, the Namura NA-4005R piston rings are an essential replacement part for Yamaha Big Wheel 350 motorcycles from 1987 to 1988. These rings are meticulously manufactured using high-quality materials to provide excellent resistance to heat, pressure, and wear. The compressive ring ensures a tight seal, the oil control ring maintains optimal oil control, and the top ring prevents combustion gases from escaping. By choosing the Namura NA-4005R piston rings, you're investing in the longevity and performance of your motorcycle's engine.

The Namura NA-4005R piston rings are designed for use in Yamaha Big Wheel 350 motorcycles manufactured between 1987 and 1988. Here are some pros and cons of buying these piston rings:

1. OEM (Original Equipment Manufacturer) replacement: These piston rings are manufactured by Namura, which is known for producing high-quality OEM parts.

2. Improved engine performance: Worn-out piston rings can lead to engine issues such as loss of compression, oil leakage, and poor fuel efficiency. Replacing the old piston rings with new ones can help improve engine performance and efficiency.

3. Longer engine life: Regularly replacing piston rings can help prolong the life of the engine by preventing damage caused by worn-out rings.

1. Cost: Piston rings can be expensive, especially when buying a set for an older motorcycle like the Yamaha Big Wheel 350. The cost of the Namura NA-4005R piston rings may be a significant investment for some.

2. Installation complexity: Installing piston rings can be a complex and time-consuming process that requires specialized tools and knowledge. It may be necessary to take the engine out of the motorcycle to access the pistons and rings.

3. Availability: Piston rings for older motorcycles like the Yamaha Big Wheel 350 may be harder to find than for newer models. It may take some time to locate a reliable supplier or to have the parts shipped.

The Namura NA-4005R piston rings are a reliable and high-quality solution for replacing worn-out piston rings in Yamaha Big Wheel 350 motorcycles from 1987 to 1988. While they may be a significant investment and require some installation expertise, they can help improve engine performance and prolong engine life.

If you are experiencing engine issues such as loss of compression, oil leakage, or poor fuel efficiency on your Yamaha Big Wheel 350 from 1987 to 1988, it may be worth investing in a set of high-quality piston rings like the Namura NA-4005R. Make sure to source the parts from a reputable supplier and consult a professional mechanic for installation to ensure the best possible outcome.

Details:

Specifications: Part: Piston Rings, Size: 82.95-83mm. The expansion ring in manufactured from stainless steel while the scraper rails are either a highly ductile cast iron or alloy. Two scraper rails and a single expansion ring. Oil rings 4-stroke applications only consist of three separate components.

Combined shipping is available for multiple items. Fits:Make: model: Year: Yamaha Big Wheel 350 BW. Product Features Compression rings are manufactured from either a highly ductile cast iron, or stainless steel alloy. CRU Products was started by Cycles R Us in 2009.

Shipping: Items are shipped within a timely manner.

part #: na40005r prices

• $19.95-$30.39

specifications pistondon:

• for models: 350
• for makes: Yamaha
• for years: 1987-1988
• brand: Namura
• mpn: Na-40005r
• type: Piston Ring
• items included: Piston Rings

offer pistondon:

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

shipping pistondon:

• class: Standard
• type: Fixed
• transit: 2-6 Days
• service: Standard
• cost: $0.00

payments pistondon:

• other
• wallet: Paypal
• credit card: Discover

seller pistondon:

• rating: 99.9%
• # reviews: 114376
• city: Chippewa Lake, Ohio

returns pistondon:

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

general pistondon:

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

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