Complete Primary Sliding Sheave for Yamaha Kodiak 450 YFM450 4X4 03-06 2018-2026

Complete Primary Sliding Sheave for Yamaha Kodiak 450

The complete primary sliding sheave is the driven half of the primary clutch assembly on Yamaha Kodiak 450 YFM450 4X4 models, working with the fixed sheave and roller weights to control belt squeeze and ratio change as engine speed rises.

Overview

This complete primary sliding sheave restores proper clutch engagement on Yamaha Kodiak 450 YFM450 4X4 machines. As a key component of the primary clutch, the sheave moves in and out along the shaft to change drive ratio and keep the belt running at the correct tension. It is built for riders and shops replacing a worn, grooved, or seized sheave on 2003 through 2006 and 2018 through 2026 Kodiak 450 4X4 models.

Built For Performance

• Machined sheave face designed to run smooth against the drive belt
• Complete assembly for direct replacement of the sliding half of the primary clutch
• Balanced construction to keep vibration low at trail and work speeds
• Durable finish to resist wear from constant belt contact
• Fits Yamaha Kodiak 450 YFM450 4X4 models across the listed year ranges

Fits These Machines

• for Yamaha Kodiak 450 YFM450 4X4 2003-2006
• for Yamaha Kodiak 450 YFM450 4X4 2018-2026

On-The-Job Use

• Trail riding where consistent clutch engagement matters
• Farm and property work with frequent stop and start cycles
• Utility hauling and towing that loads the clutch under heat
• Routine clutch rebuilds when the belt or roller weights are also replaced

Specs At A Glance

Good To Know

Q: How do I know my sliding sheave needs replacing? A: Common signs include belt squeal, jerky engagement, or visible grooves and flat spots on the sheave face. Inspect the sheave alongside the belt and roller weights before ordering.

Q: Can I reuse my old belt with a new sheave? A: A new sheave works best with a belt in good condition, since a worn belt can wear the new face unevenly. Measure belt width against spec and replace it if it is under the wear limit.

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