Namura Technologies NW-40006R Piston Ring Set for Yamaha PWC

The Namura Technologies NW-40006R is a complete piston ring kit designed specifically for Yamaha personal watercraft engines. This precision-engineered ring set delivers reliable compression sealing and oil control to maintain optimal engine performance in demanding marine environments.

Compression Ring Features:

• Constructed from highly ductile cast iron or stainless steel alloy for exceptional durability
• Advanced chrome, phosphate, or nitride coatings for superior wear resistance
• Precision-engineered to provide a gastight seal and maintain proper compression
• Designed to withstand the rigors of high-RPM watercraft operation

Oil Ring Assembly:

• Three-piece design consisting of two scraper rails and one expansion ring
• Scraper rails manufactured from ductile cast iron or stainless steel with protective coating
• Stainless steel expansion ring ensures consistent tension and oil control
• Optimized to prevent oil consumption while maintaining proper lubrication

Namura Technologies ring sets meet or exceed OEM specifications, making them an excellent choice for engine rebuilds, restorations, or performance maintenance on Yamaha PWC engines.