Wrist Pin Bearing for Polaris 650 850 cc Snowmobiles

Wrist Pin Bearing for Polaris 650 & 850 cc Snowmobiles

This wrist pin bearing fits for Polaris 650 and 850 cc snowmobile engines, sitting between the connecting rod and piston pin to keep the top end rotating smoothly.

Overview

This wrist pin bearing is a small but critical engine component for for Polaris 650 and 850 cc snowmobile powerplants. It rides between the connecting rod small end and the piston pin, reducing friction and carrying load as the piston moves through each stroke. It is the right choice for top-end rebuilds, fresh piston installs, or anytime the engine is opened up for service.

Built For Performance

• Designed for for Polaris 650 and 850 cc snowmobile engine top ends
• Caged needle roller construction keeps needles evenly spaced under load
• Hardened steel rollers and races resist wear at high rpm
• Precise bore and width for a proper fit on the connecting rod small end
• Sold as a single bearing for one wrist pin location

Fits These Machines

• for Polaris snowmobiles with 650 cc engines
• for Polaris snowmobiles with 850 cc engines

On-The-Job Use

• Top-end rebuilds when replacing pistons or rings
• Refresh work after a piston seizure or lean condition
• Preventive replacement during engine teardown
• Rebuilding a spare engine for race or trail use

Specs At A Glance

Good To Know

Q: Is this an original for Polaris part? A: No, this is an aftermarket wrist pin bearing built to fit for Polaris 650 and 850 cc snowmobile engines. It is not manufactured or endorsed by for Polaris.

Q: Do I need one or two of these for my engine? A: Each cylinder uses one wrist pin bearing, so order one per piston being serviced. Check your engine configuration 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.