NPR SWH30362-4 Piston Ring Set Honda D15B D16A D16Z6 76mm +1.0mm Oversize

The NPR SWH30362-4 is a premium quality piston ring set designed for Honda D-series engines that have been bored to 1.0mm oversize. Manufactured by Nippon Piston Ring (NPR), this complete set includes rings for four cylinders, providing everything needed for a professional engine rebuild.

Key Features:

• Bore size: 76.0mm (+1.0mm / .040" oversize)
• Ring dimensions: 1.2mm x 1.5mm x 2.8mm
• Complete set includes compression rings and oil control rings for 4 cylinders
• High-alloy steel construction for superior durability and reduced wear
• Chrome plated surfaces for enhanced longevity and reduced friction
• Manufactured in Japan to meet JIS (Japanese Industrial Standard) B8032-6-1998
• Compatible with OEM pistons bored to +1.0mm oversize

Application:

• Honda D15B2, D15B7 engines
• Honda/Acura D16A6, D16A8 engines
• Honda D16Z2, D16Z5, D16Z6 engines

NPR piston rings are engineered to provide superior gas sealing, optimal oil control, efficient heat conduction, and extended service life. The steel ring construction offers over 60% reduction in ring wear compared to cast iron rings, while maintaining complete contact with the cylinder wall to prevent blow-by and reduce oil consumption.