Namura Piston Ring NA-50026R
Customer Ratings
Namura Piston Ring NA-50026R

Namura Piston Ring NA-50026R
Bore Size: 87.89mm
Size Over Standard: Standard
- Namura premium world class rings produced by the largest Japanese OEM supplier in the world
- Namura?s rings are designed specifically for their application
- Namura understands that the rings are an essential part of piston performance, engine efficiency, and durability
Often overlooked and unglamorous, they are an essential part of piston performance, engine efficiency, and durability. The materials used in the manufacturing of piston rings are one of the most critical factors in their performance. Namura?s rings are designed specifically for their application. The type of cylinder sleeve, sleeve coating, size of the engine, and the stroke (2 or 4) all play a role in determining the composition best suited for the operating environment. While it may vary by model, we have outlined some of the key features below:
Compression Rings: Composed of either a highly ductile cast iron or stainless steel alloy; both materials possess excellent wear resistance and provide a gastight seal. Chrome, phosphate and nitride coatings are also used to meet the demands of the application.
Oil rings: consist of three separate components. Two scraper rails constructed from highly ductile cast iron or a stainless steel alloy and also have a chrome, nitride, or phosphate coating. The single expansion ring is manufactured from stainless steel.
Brand: Namura
Part Number: NA-50026R
Fitment:
- 2011-2014 POLARIS HAWKEYE 400 HO 2X4
- 2004-2005 POLARIS RANGER 400 2X4/4X4/6X6
- 2010-2014 POLARIS RANGER 400 4X4
- 2001-2005 POLARIS SPORTSMAN 400
- 2008-2014 POLARIS SPORTSMAN 400 HO
- 2006-2007 POLARIS SPORTSMAN 450
Note: Image is for reference only, actual product may vary slightly depending on your vehicle.
Namura Piston Ring NA-50026R
Bore Size: 87.89mm
Size Over Standard: Standard
- Namura premium world class rings produced by the largest Japanese OEM supplier in the world
- Namura?s rings are designed specifically for their application
- Namura understands that the rings are an essential part of piston performance, engine efficiency, and durability
Often overlooked and unglamorous, they are an essential part of piston performance, engine efficiency, and durability. The materials used in the manufacturing of piston rings are one of the most critical factors in their performance. Namura?s rings are designed specifically for their application. The type of cylinder sleeve, sleeve coating, size of the engine, and the stroke (2 or 4) all play a role in determining the composition best suited for the operating environment. While it may vary by model, we have outlined some of the key features below:
Compression Rings: Composed of either a highly ductile cast iron or stainless steel alloy; both materials possess excellent wear resistance and provide a gastight seal. Chrome, phosphate and nitride coatings are also used to meet the demands of the application.
Oil rings: consist of three separate components. Two scraper rails constructed from highly ductile cast iron or a stainless steel alloy and also have a chrome, nitride, or phosphate coating. The single expansion ring is manufactured from stainless steel.
Brand: Namura
Part Number: NA-50026R
Fitment:
- 2011-2014 POLARIS HAWKEYE 400 HO 2X4
- 2004-2005 POLARIS RANGER 400 2X4/4X4/6X6
- 2010-2014 POLARIS RANGER 400 4X4
- 2001-2005 POLARIS SPORTSMAN 400
- 2008-2014 POLARIS SPORTSMAN 400 HO
- 2006-2007 POLARIS SPORTSMAN 450
Note: Image is for reference only, actual product may vary slightly depending on your vehicle.