Wrist Pin Bearing for Polaris Sprint 340 1986-1990 Snowmobile

Wrist Pin Bearing for Polaris Sprint 340

This wrist pin bearing fits the Polaris Sprint 340 snowmobile produced from 1986 through 1990, providing the bearing that connects the piston to the connecting rod inside the engine.

Overview

This wrist pin bearing is built for the Polaris Sprint 340 snowmobile spanning model years 1986 to 1990. It sits between the piston and connecting rod, allowing smooth rotation under high load and engine speed. It suits riders and rebuilders replacing a worn bearing during a top-end service on a Polaris Sprint 340.

Built For Performance

• Direct-fit bearing sized for the Polaris Sprint 340 wrist pin
• Hardened rolling elements resist wear under high engine load
• Caged design keeps rollers evenly spaced for smooth rotation
• Heat-treated steel construction for sustained engine temperatures
• Replaces a worn or noisy original wrist pin bearing

Fits These Machines

• for Polaris Sprint 340 1986
• for Polaris Sprint 340 1987
• for Polaris Sprint 340 1988
• for Polaris Sprint 340 1989
• for Polaris Sprint 340 1990

On-The-Job Use

• Top-end rebuilds that replace the piston and rings
• Repairing a seized or noisy upper rod bearing
• Routine engine maintenance before winter riding season
• Restoring an older Polaris Sprint 340 for trail use

Specs At A Glance

Good To Know

Q: When should a wrist pin bearing be replaced? A: Replace it whenever the piston or rings are serviced, or if the bearing shows play, noise, or visible wear. Reusing a worn bearing during a rebuild can lead to premature engine damage.

Q: Is this bearing sold as a single unit? A: This listing is for the wrist pin bearing as described. Confirm the quantity you need and verify your engine's piston and rod dimensions match before ordering.

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