NPR SWG30120-4 Piston Ring Set for 82.00mm Bore Gasoline Engines

The NPR SWG30120-4 is a precision-engineered piston ring set designed for gasoline engines with an 82.00mm bore diameter. This three-piece ring set features NPR's proven designs for optimal compression sealing, oil control, and long-term durability.

Ring Configuration:

• Top Ring: 1.50mm x 3.60mm barrel face with interior bevel (BF-IB), SR10 profile, chrome surface treatment for wear resistance
• Second Ring: 1.50mm x 3.85mm taper face (T1), CR01 profile, chrome surface treatment for superior sealing
• Oil Control Ring: 2.50mm x 2.70mm, NIF-S design with chrome treatment for effective oil management

Key Features:

• Manufactured in Japan by NPR, an OEM supplier to major automotive manufacturers since 1931
• Precision-machined from high-quality materials to withstand high temperatures and pressures
• Chrome surface treatments provide excellent wear resistance and extended service life
• Engineered for perfect fit and seal to ensure optimal compression and combustion efficiency
• Standard bore size: 82.00mm (3.228 inches)

NPR piston rings are trusted by engine builders worldwide for their consistent quality, precise tolerances, and reliable performance. This ring set is ideal for engine rebuilds and performance applications requiring OEM-quality components.