NPR SWF30034-2 Piston Ring Set

The NPR SWF30034-2 is a precision-engineered piston ring set designed for reliable engine performance and durability. Manufactured by NPR of America (Nippon Piston Ring), this ring set delivers the quality and precision that professional engine builders and automotive technicians depend on.

Key Features:

• Engineered to seal combustion gases, control lubricating oil, and dissipate heat effectively
• Manufactured to meet or exceed JIS (Japanese Industrial Standard) B8032-6-1998 specifications
• Advanced surface treatments for enhanced wear resistance and durability
• Precision-machined for proper cylinder wall contact and optimal sealing
• Designed to prevent gas blow-by and piston scoring under severe operating conditions

NPR piston rings are the result of decades of engineering expertise and are extensively tested to ensure proper fit and performance. Each ring set features carefully selected materials and surface treatments including chrome plating, nitriding, or Ferrox coating, depending on the specific application requirements. These rings maintain proper clearance between the piston and cylinder wall while ensuring complete contact around the entire circumference for maximum sealing efficiency.