400L/2x4 Wiseco .060 Piston Gasket Set Bearing for Polaris Sport 400 1994-1999

Wiseco .060 Piston, Gasket Set & Bearing for Polaris

This Wiseco .060 piston kit with gasket set and bearing rebuilds the top end on Polaris Sport 400 ATVs, restoring compression and sealing after a cylinder bore.

Overview

This Wiseco .060 piston, gasket set, and bearing kit is a complete top end rebuild package for Polaris Sport 400 machines. The oversize piston restores compression after a bore, while the gaskets and bearing handle sealing and lower end rotation. It fits riders rebuilding a worn or seized two stroke engine.

Built For Performance

• Wiseco forged piston built for two stroke ATV use
• .060 oversize bore allows cleanup of scored cylinders
• Gasket set included for a complete top end reseal
• Wrist pin bearing included for lower end refresh
• Designed to match cylinder dimensions at the oversize bore

Fits These Machines

• for Polaris Sport 400 1994-1999
• for Polaris 400L
• for Polaris 400 2x4

On-The-Job Use

• Top end rebuild after cylinder scoring or seizure
• Fresh bore and hone service on two stroke ATV engines
• Restoring compression on high hour Sport 400 machines
• Trail and recreational ATV engine refresh

Specs At A Glance

Good To Know

Q: Does this kit require boring the cylinder? A: Yes, a .060 oversize piston needs the cylinder bored and honed to match before assembly. Check that your cylinder has enough material for the oversize bore.

Q: Is this an original Polaris part? A: No, this is an aftermarket Wiseco kit built for Polaris machines. Verify bore size and piston clearance against your service manual before installation.

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