Wrist Pin Bearing for Polaris Indy Sport 340 1987-1990 GT Snowmobile

Wrist Pin Bearing for Polaris

This wrist pin bearing is a replacement small end bearing for the connecting rod on Polaris Indy Sport 340 snowmobile engines, letting the piston pin rotate smoothly under load.

Overview

This wrist pin bearing is a direct-fit replacement for the small end of the connecting rod on Polaris Indy Sport 340 engines from 1987 through 1990. The wrist pin bearing supports the piston pin, reducing friction and wear where the rod meets the piston. It is a practical choice for riders rebuilding a top end or refreshing a high-hour Indy Sport 340.

Built For Performance

• Roller-style bearing designed for the small end of the connecting rod
• Handles the reciprocating load of the piston pin under high RPM
• Hardened steel construction for resistance to wear and fatigue
• Precision tolerances for a proper fit on the wrist pin and rod
• Sold as a single replacement bearing

Fits These Machines

• for Polaris Indy Sport 340, 1987
• for Polaris Indy Sport 340, 1988
• for Polaris Indy Sport 340, 1989
• for Polaris Indy Sport 340, 1990

On-The-Job Use

• Top end rebuilds on Indy Sport 340 snowmobiles
• Piston and ring replacement jobs
• Crankcase and connecting rod service
• Seasonal maintenance on high-hour trail sleds

Specs At A Glance

Good To Know

Q: How many wrist pin bearings come with this order? A: This listing is for one wrist pin bearing. Order the quantity you need for your rebuild.

Q: Should the wrist pin bearing be replaced during a top end rebuild? A: Yes, replacing the wrist pin bearing is standard practice whenever the piston and rings are serviced, since it is an inexpensive wear part.

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