Namura Standard Bore Piston & Gasket Kit for Polaris Ranger 150 & ACE 150 57.4mm

Namura Standard Bore Piston & Gasket Kit for Polaris

This standard bore piston and gasket kit, sized at 57.4mm, is designed for direct replacement in Polaris Ranger 150 and ACE 150 models, providing reliable compression and sealing for engine rebuilds.

Overview

This Namura standard bore piston and gasket kit is engineered for Polaris 150cc engines. The 57.4mm piston restores compression in Ranger 150 and ACE 150 engines, while the included gasket set ensures a leak-free seal. Trust this piston and gasket kit for a dependable engine overhaul.

Built For Performance

• Standard bore diameter of 57.4mm matches factory specifications
• Includes piston, rings, and full gasket set for a complete top-end kit
• Cast aluminum alloy piston provides strength and heat dissipation
• Precision-machined ring grooves for consistent gas sealing
• Gaskets are made from high-quality materials for a tight seal

Fits These Machines

• for Polaris Ranger 150
• for Polaris ACE 150

On-The-Job Use

• Rebuilding the top end of Polaris 150cc utility vehicles
• Restoring compression in engines with worn pistons and rings
• Replacing gaskets to prevent oil leaks and coolant contamination
• Used in routine maintenance for recreational and work applications

Specs At A Glance

Good To Know

Q: What is the difference between standard and oversized pistons? A: Standard bore pistons are designed for original cylinder dimensions; oversized pistons are used when the cylinder has been bored out for repair.

Q: Do I need to hone the cylinder before installing a new piston? A: Yes, honing ensures proper ring seating and a good seal; consult your engine manual for specific requirements.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.