NPR 10-909 Piston and Ring Kit Engine Rebuild Set

The NPR 10-909 is a complete piston and ring kit from NPR of America, Inc. (Nippon Piston Ring), designed for full-engine rebuilds. NPR's 10-series kits bundle matched pistons and piston rings together into a single, ready-to-install engine set, ensuring proper fitment and performance right out of the box.

Key Features:

• Complete kit format: Includes all pistons and rings required for a full engine — no need to source components separately
• Premium aluminum alloy pistons engineered for strength, reduced weight, and minimal thermal expansion
• Gas-nitrided steel piston rings offering superior wear resistance and service life up to 50% longer than standard cast iron rings
• Moly skirt treatment on pistons for reduced friction and improved break-in performance
• Anodized piston head for enhanced heat resistance and durability in high-temperature combustion environments
• Manufactured to JIS (Japanese Industrial Standard) B8032-6-1998 specifications
• Rings provide combustion gas sealing, lubricating oil control, heat dissipation, and wear/seizure prevention

NPR of America has been a trusted OEM and aftermarket supplier of precision engine components since 1973. The 10-909 kit delivers OEM-level quality for professional engine rebuilders and performance enthusiasts seeking reliable, long-lasting results.