Wiseco Pistons 3307TD Piston Ring Set 84mm Bore for Polaris ATV 400

The Wiseco 3307TD is a precision-engineered piston ring set designed specifically for 84mm bore applications in Polaris ATV 400 engines. This set includes 2 high-performance rings with a 1.2mm thickness, manufactured to exacting tolerances for optimal compression and oil control.

Key Features:

• 84mm bore size with 1.2mm ring thickness
• Includes 2 rings for one piston
• Compatible with cast iron, Nikasil (Nickel Ceramic Plating), Boron Composite, and Electrofusion cylinder bores
• Must be used exclusively with Wiseco pistons for proper fitment and performance
• Designed for use with Wiseco piston P/N 675M08400

Important Compatibility Notes:

• This ring set is designed to work only with Wiseco brand pistons
• Set contains rings for one piston only; order multiple sets for multi-cylinder applications
• WARNING: Not compatible with chrome-plated cylinder bores unless specifically noted; using in chrome bores will cause engine damage
• Verify your existing Wiseco piston part number (675M08400) before ordering to ensure proper fitment

Wiseco piston rings are engineered to deliver reliable sealing performance and durability in demanding powersports applications. The 1.2mm ring thickness provides the right balance of sealing efficiency and low friction for optimal engine performance.