1. Pistons, Rings & Piston Kits Products
  2. sku: 12359814659449793
  3. NAMURA NX-40005R

NAMURA NX-40005R Scooter Piston Rings Towny 39.96MM QT50

fits make: Yamaha. year: 1979–1987.

Nx-40005r Namura Scooter 39.96mm Piston Rings For Yamaha Qt50 1979-1987 Towny 50 1982

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

Review NAMURA Scooter 39.96mm Piston Rings For Yamaha Towny 50 fits 1979–1987

Introducing the Namura NX-40005R piston rings, specifically designed for the Yamaha QT50 scooters produced between 1979 and 1987, as well as the Towny 50 models from 1982. These piston rings are an essential upgrade for maintaining the optimal performance and longevity of your engine.

The NX-40005R piston rings boast a 39.96mm outer diameter, ensuring a perfect fit for your engine's cylinder. By using a high-quality, heat-resistant material, these rings effectively prevent excessive wear and tear, even under the most demanding conditions. Designed with a compression ring and two oil control rings, they ensure efficient combustion while minimizing oil consumption.

One of the key features of these piston rings is their precise manufacturing process. Each ring undergoes rigorous quality control, ensuring a consistent, uniform fit and optimal sealing performance. Additionally, their chamfered edges allow for a smoother installation process, reducing the risk of damage during installation.

Moreover, these piston rings are engineered to provide excellent durability and resistance to scuffing and scoring. The advanced material used in their construction ensures that they can withstand the high pressures and temperatures encountered during engine operation, maintaining their sealing integrity throughout the life of your engine.

Upgrading your engine with Namura NX-40005R piston rings not only enhances its performance but also helps extend its lifespan. By providing a perfect seal and reducing oil consumption, these piston rings contribute to a more efficient and reliable engine, ensuring a smoother, more enjoyable riding experience.

In conclusion, the Namura NX-40005R piston rings are an essential upgrade for Yamaha QT50 scooters and Towny 50 models from 1979 to 1987, and 1982 respectively. With their precise fit, high-quality material, and excellent durability, these piston rings ensure efficient combustion, minimize oil consumption, and contribute to a more reliable and enjoyable riding experience.

Buying Namura NX-40005R piston rings for a Yamaha QT50, Towny 50, or a 1982 Yamaha DT50 motorcycle can be a consideration for those looking to replace worn-out piston rings in their engine. Here are some pros and cons to help you make an informed decision.

Pros:

1. Reputation: Namura is a well-known and trusted brand in the automotive industry, particularly in the two-stroke engine market.

2. Compatibility: These piston rings are specifically designed for Yamaha QT50, Towny 50, and DT50 motorcycles manufactured between 1979 and 1987.

3. Precision: The rings are engineered to provide a precise seal between the piston and the cylinder wall, reducing engine blow-by and improving performance.

4. Durability: Namura piston rings are made from high-quality materials, ensuring long-lasting use and minimal wear.

Cons:

1. Price: Namura piston rings may be more expensive than other aftermarket brands or OEM alternatives.

2. Installation: Installing piston rings can be a complex and time-consuming process, requiring specific tools and expertise.

3. Availability: These piston rings may not be readily available at local motorcycle shops or online marketplaces, potentially leading to longer wait times for delivery.

In conclusion, the decision to buy Namura NX-40005R piston rings for a Yamaha QT50, Towny 50, or DT50 motorcycle depends on your priorities, budget, and access to compatible parts. If you value the brand's reputation for quality and precision, are willing to pay a premium, and can handle the installation process yourself, these piston rings may be an excellent choice. Alternatively, if cost is a significant concern or you prefer to shop for more readily available alternatives, you may want to explore other options.

Recommendation: If you've determined that Namura piston rings are the best fit for your needs, consider purchasing them from a reputable supplier with a good return policy and excellent customer service. This will give you peace of mind knowing that you have a reliable source for the parts and can address any issues that may arise during the installation process.

Details:

Two scraper rails and a single expansion ring. Shipping: Items are shipped within a timely manner. Combined shipping is available for multiple items. Specifications: Part: Piston Rings, Size: 39.96mm.

CRU Products was started by Cycles R Us in 2009. Fits:Make: model: Year: YamahaQT50 Yamahopper1979-1987, Yamaha Towny 50 MJ50 1982. Oil rings 4-stroke applications only consist of three separate components. Product Features Compression rings are manufactured from either a highly ductile cast iron, or stainless steel alloy.

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

part #: nx40005r prices

  • $11.66-$12.04

specifications pistondon:

  • for makes: Yamaha
  • for years: 1979-1987
  • brand: Namura
  • mpn: Nx-40005r
  • type: Piston Ring
  • items included: Piston Rings

offer pistondon:

  • availability: In Stock
  • started: May 13, 2026
  • sold: 0
  • options: Ship-to-home
  • quantity: 3

returns pistondon:

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

seller pistondon:

  • rating: 99.9%
  • # reviews: 116550
  • city: Chippewa Lake, Ohio

payments pistondon:

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

general pistondon:

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

shipping pistondon:

  • type: Fixed
  • transit: 3-7 Days
  • service: Standard
  • cost: $0.00
  • class: Standard
for makes: yamaha, for years: 1979-1987, type: piston ring, items included: piston rings,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 12359814659449793,

Namura NX-40005R Is Similar To:

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5 offers $11.66–$12.04 USD
  • Offer #1: $11.95 price + $0.00 shipping estimate = $11.95* total. Compatible with Yamaha models below Kit Includes 2 Compression Rings & 1 Expansion Ring (you get exactly what is pictured) Manufactured by Namura.FREE SHIPPING
  • Offer #2: $11.66 price + $11.99 shipping estimate = $23.65* total. 2002 Yamaha PW50. Namura Piston Ring Set 40.00mm.+$11.99 shipping
  • Offer #3: $12.04 price + $15.00 shipping estimate = $27.04* total. Yamaha Pw 50 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021. Piston Rings 39.96mm For Namura Pistons Only Yamaha Pw 50 1981-2021 Mpn:.+$15.00 shipping
  • Offer #4: $11.01 price + $9.95 shipping estimate = $20.96* total. 1999 Yamaha PW50. Piston Ring Set.+$9.95 shipping
  • Offer #5: $26.68 price + $0.00 shipping estimate = $26.68* total. Oil rings (4-stroke applications only) consist of three separate components. Yamaha Towny 50 MJ50 1982.FREE SHIPPING

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