SPI Chain Case Bearing Kit Jackshaft for Polaris Timbersled fits 2018-2019 ARO

Chain Case Bearing Kit for Polaris Timbersled

This SPI chain case bearing kit for Polaris Timbersled jackshafts provides a reliable replacement for worn drivetrain components to restore smooth rotation.

Overview

The chain case bearing kit for Polaris Timbersled maintains proper jackshaft alignment within the drivetrain. This kit is designed for maintenance technicians and riders performing seasonal service on their snowbike conversions. The chain case bearing kit for Polaris Timbersled ensures your sled remains responsive on the mountain.

Built For Performance

• High-grade steel construction for consistent durability
• Precision ball bearing design reduces rotational friction
• Maintains critical jackshaft alignment under heavy loads
• Provides a direct replacement for stock components
• Heat-treated surfaces resist premature wear

Fits These Machines

• for Polaris Timbersled ARO 2018
• for Polaris Timbersled ARO 2019

On-The-Job Use

• Restoring drivetrain efficiency during snowmobile mid-season service
• Replacing worn jackshaft bearings after high-mileage trips
• Correcting excessive vibration in the chain case assembly

Specs At A Glance

Good To Know

Q: Does this kit include seals? A: This kit contains the specific bearings required for the jackshaft assembly as indicated.

Q: Should I replace the chain during installation? A: It is standard practice to inspect the drive chain for elongation whenever replacing internal drivetrain bearings.

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