Namura Piston Ring NA-50008-4R

Bore Size: 40.96mm
Size Over Standard: +1mm

• 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-50008-4R

Fitment:

• All Years ADLY ADLY FOX 50
• All Years ADLY ADLY HAMMERHEAD 50
• All Years ADLY ADLY NOBLE 50
• All Years ADLY ADLY THUNDERBIKE 50
• All Years BKM BKM XENON 50cc
• All Years ETON ETON BEAMER MATRIX 50
• All Years KEEWAY 50 KEEWAY HURRICAN 50
• All Years KEEWAY KEEWAY F-CT 50
• All Years KEEWAY KEEWAY MATRIX 50
• All Years KEEWAY KEEWAY RY8 50
• All Years LINHAI LINHAI POWERMAX 50
• All Years MZ MZ MOSKITO 50
• All Years PGO PGO GENUINE BLACK CAT 50cc
• All Years PGO PGO GENUINE BUDDY 50cc
• All Years PGO PGO GENUINE RATTLER 50
• All Years PGO PGO G-MAX 50
• 2001-2006 POLARIS 50 PREDATOR
• 2001-2006 POLARIS 50 SCRAMBLER
• All Years STRADA STRADA 50
• All Years STRADA STRADA RX8 50
• All Years UNITED MOTORS XPEED 50R
• All Years VENTO TRITON 50
• All Years VENTO VENTO ZIP 50
• All Years YAMAHA AXIS 50
• All Years YAMAHA BREEZE 50
• All Years YAMAHA MINARELLI 50
• All Years YAMAHA ZUMA 50

Note: Image is for reference only, actual product may vary slightly depending on your vehicle.