SPI Case Bearing Kit for Yamaha fits many 1980-1999 Snowmobiles

Case Bearing Kit for SPI

This case bearing kit for SPI provides the essential internal bearings needed for the crankcase of various 1980-1999 Yamaha snowmobiles.

Overview

The case bearing kit for SPI is designed to ensure smooth crankshaft rotation and reduce vibration within the engine crankcase. Using this case bearing kit for SPI is essential during a bottom-end rebuild to ensure longevity of the drivetrain. It is intended for professional mechanics and engine builders working on classic Yamaha snowmobiles.

Built For Performance

• High-speed bearings for consistent load support
• Precision steel construction for long service life
• Designed for high RPM operating environments
• Maintains critical crankshaft alignment

On-The-Job Use

• Supporting crankshaft during major engine overhaul
• Reducing drivetrain noise and vibration
• Replacing worn or pitted bottom-end bearings

Good To Know

Q: Does this cover all bearings in the case? A: This kit covers the primary case bearings as designated for the compatible engine series. A: Q: Do these come pre-lubricated? A: Bearings should be lightly coated with clean assembly lubricant or engine oil prior to installation.

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