Wiseco Pistons 9275XX Piston Ring Set Bore - 92.75mm 1.0mm 1.2mm 2.8mm

The Wiseco 9275XX is a three-piece piston ring set designed for a 92.75mm (3.652") bore with ring widths of 1.00mm top / 1.20mm 2nd / 2.80mm oil. Manufactured specifically to Wiseco's exacting specifications, this XX-series ring set is engineered to deliver superior sealing, reduced friction, and reliable performance when paired with Wiseco pistons.

Ring Set Specifications:

• Top Ring (SGP): 1.0mm (.039") width — stainless steel construction with gas-nitrided coating and barrel-faced profile for excellent sealing and wear resistance
• Second Ring (IPN): 1.2mm (.047") width — cast iron with phosphate coating, taper-faced under-hook (Napier) style design for improved oil control and compression retention
• Oil Ring (CUS): 2.8mm (.110") width — 3-piece assembly featuring gas-nitrided rails and a stainless steel flex-vent spacer for consistent radial tension and oil scraping
• Bore Size: 92.75mm (3.652")
• Ring set covers bore range: 75–100mm (2.953–3.937")
• Includes: One ring set for one piston

The Wiseco XX-series is the most widely used ring set supplied with Wiseco performance pistons. Each ring set provides rings for a single piston — order one set per cylinder. These rings are made to work in conjunction with Wiseco forged pistons and are not intended as a universal replacement for non-Wiseco piston applications.