NPR SWH30373-3 Piston Ring Set 81.75mm .030 Oversize Honda B-Series

The NPR SWH30373-3 is a premium piston ring set designed for Honda and Acura B-Series DOHC engines. This oversize ring set features an 81.75mm bore diameter (.030" oversize) and includes rings for all four pistons, making it ideal for engine rebuilds requiring slightly oversized components.

Key Features:

• Manufactured in Japan by Nippon Piston Ring for superior quality and reliability
• Bore size: 81.75mm (.030" oversize)
• Ring dimensions: 1.0mm x 1.2mm x 2.8mm
• Premium steel construction with chrome finish for excellent wear resistance
• Precision-engineered for optimal compression and reduced oil consumption
• Complete set includes rings for 4 pistons

NPR piston rings are designed to minimize friction and reduce wear, extending engine component lifespan. With exceptional heat resistance and durability, these rings maintain their integrity even under demanding conditions. Compatible with Honda B16A, B17A1, B18A1, B18B1, B18C1, and B18C5 engines found in Acura Integra and Honda Civic models. Replaces OEM part number 13011-PR3-004.