NAMURA NA-10003-4R Piston Rings 85.97MM

( Brand: Namura ), ( Manufacturer Part Number: NA-10003-4R ), ( Type: Piston Ring ), ( Items Included: Piston Rings )

Review NAMURA Motorcycle 85.97mm Piston Rings For Honda fits XR400R 1996–2004

Introducing the Namura NA-10003-4R piston rings for Honda XR400R motorcycles manufactured between 1996 and 2004. These rings are designed to ensure optimal engine performance and efficiency by maintaining the necessary seal between the piston and cylinder wall.

The inner diameter of these piston rings measures 85.97mm, making them a perfect fit for the Honda XR400R engine. The rings are manufactured using high-quality materials that are both durable and resistant to wear and tear. They feature a ring groove width of 1.9mm and a ring end gap of 0.5mm, ensuring a precise fit in the engine cylinder.

The top compression ring of this set is designed to provide maximum sealing and compression efficiency. It features a unique, tapered design that ensures a snug fit against the cylinder wall and helps to prevent blowby gases from escaping. This results in improved combustion efficiency and increased engine power.

The second compression ring, also known as the oil control ring, is designed to control the flow of oil into the piston skirt. It features a narrow, straight groove design that helps to evenly distribute oil on the piston skirt, ensuring that the piston remains lubricated while minimizing oil consumption.

The oil scraper ring, which is the third ring in this set, is designed to remove excess oil from the piston skirt as it moves up and down in the cylinder. This helps to prevent oil from building up on the piston skirt, which can lead to increased friction and decreased engine performance.

Each piston ring in this set is precision-machined to ensure a perfect fit and optimal performance. They are also supplied with a protective coating to prevent damage during installation and to help prolong their lifespan.

In conclusion, the Namura NA-10003-4R piston rings for Honda XR400R motorcycles (1996-2004) are a high-quality, reliable solution for maintaining optimal engine performance and efficiency. Their precise fit, durable materials, and unique designs make them an excellent choice for riders looking to get the most out of their XR400R engine.

1. Quality: Namura is a reputable brand known for manufacturing high-quality piston rings. These rings may offer improved sealing, durability, and performance compared to OEM rings.

2. Reduced Engine Wear: By using high-quality piston rings, you can potentially reduce engine wear and tear. This can lead to longer engine life and improved performance.

3. Improved Power Delivery: Better sealing piston rings enable more efficient combustion, potentially leading to increased power delivery.

1. Cost: Namura piston rings may be more expensive than OEM rings. This could be a significant investment for some riders.

2. Installation Complexity: Installing aftermarket piston rings can be more complex than installing OEM rings. It may require additional tools and expertise.

3. Potential Compatibility Issues: While Namura rings are generally compatible with various motorcycle models, there's a chance they may not fit perfectly with your specific Honda XR400r.

The decision to buy Namura NA-10003-4R piston rings for your Honda XR400r depends on your priorities. If you're looking for improved engine performance, durability, and reduced wear, then investing in high-quality aftermarket rings like Namura might be a worthwhile investment. However, if cost is a concern or you're not comfortable with the installation process, then sticking with OEM rings may be the better choice.

If you're confident in your mechanical skills and are willing to invest in high-performance piston rings, then the Namura NA-10003-4R rings could be a great choice for your Honda XR400r. Ensure that you follow the installation instructions carefully and use the appropriate tools to minimize the risk of any compatibility issues. However, if you're unsure or prefer a more straightforward solution, consider sticking with OEM rings.

Details:

Shipping: Items are shipped within a timely manner. Fits:Make: model: Year: HondaXR400R 1996 -2004. Two scraper rails and a single expansion ring. Oil rings 4-stroke applications only consist of three separate components.

The expansion ring in manufactured from stainless steel while the scraper rails are either a highly ductile cast iron or alloy. 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. Combined shipping is available for multiple items.

Specifications: Part: Piston Rings, Size: 85.97mm.

part #: na100034r prices

• $19.28-$20.66

specifications pistondon:

• for models: Xr400r
• for makes: Honda
• for years: 1996-2004
• brand: Namura
• mpn: Na-10003-4r
• type: Piston Ring
• items included: Piston Rings

general pistondon:

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

offer pistondon:

• availability: In Stock
• started: September 9, 2025
• quantity: 2
• options: Ship-to-home
• sold: 0

shipping pistondon:

• type: Fixed
• service: Standard
• class: Standard
• cost: $0.00
• transit: 3-7 Days

payments pistondon:

• other
• credit card: Visa
• wallet: Paypal

seller pistondon:

• city: Chippewa Lake, Ohio
• # reviews: 102267
• rating: 99.6%

returns pistondon:

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

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