SPI Chain Case Jack Shaft Bearing Kit for Yamaha fits many 2014-2021 Snowmobiles

SPI Chain Case Jack Shaft Bearing Kit for Yamaha

The SPI Chain Case Jack Shaft Bearing Kit replaces worn bearings in Yamaha snowmobile chain cases for models from 2014 to 2021.

Overview

This SPI Chain Case Jack Shaft Bearing Kit supplies the bearings needed to overhaul the jack shaft area in Yamaha snowmobile chain cases built between 2014 and 2021. It eliminates slop and noise caused by worn bearings, restoring smooth drivetrain operation. The kit is a direct-fit solution for common snowmobile maintenance.

Built For Performance

• Sealed bearings protect against snow and moisture
• Hardened steel races for long service life
• Includes necessary bearings and seals (where applicable)
• Precision tolerances for quiet operation
• Engineered to handle high chain tension loads

On-The-Job Use

• Snowmobile chain case service and rebuild
• Replacing bearings that have failed from water ingress
• Annual winter season drivetrain inspection
• Performance tuning requiring tight drivetrain tolerances

Specs At A Glance

Good To Know

Q: Do I need special tools to install this bearing kit? A: A bearing puller and press are recommended for proper installation without damaging the new bearings.

Q: How can I tell if my jack shaft bearings need replacement? A: Listen for a growling or rumbling noise from the chain case, or check for side-to-side play in the jack shaft.

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