Carrillo CPN-3109 Piston Ring Set for 79mm Bore

The CP-Carrillo CPN-3109 is a high-performance piston ring set designed for 79mm (3.109") bore pistons. This single-piston ring set is engineered for demanding applications in smaller bore and sport compact engines requiring superior sealing and minimal friction.

Key Features:

• Bore size: 79mm (3.109")
• Gas nitrided steel top compression ring for compatibility with Nikasil and cast iron cylinder bores
• Cast iron second ring with taper hook groove face for improved oil control
• Low-tension design provides optimum sealing with reduced drag
• Scuff-resistant nitrided surface ensures extended life under extreme conditions
• Three-piece oil control ring included
• Includes rings for one piston

CP-Carrillo CPN ring sets are specifically designed for high-cylinder-pressure applications and are compatible with modern cylinder materials including Nikasil and Alusil. The nitrided top ring allows maximum efficiency without blemishing the bore, while the hooked second ring acts as an effective wiper to push oil away from the combustion chamber. Made in the USA with premium materials and precision manufacturing.

Note: This ring set is designed for use with CP-Carrillo, Wiseco, and JE pistons. Not compatible with OEM pistons. Proper cylinder honing with 35-40 degree cross-hatch pattern is recommended for optimal performance.