New Primary Fixed Sheave for Yamaha Bruin 350 2X4 4X4 YFM350 YFM 350 2004-2006

Primary Fixed Sheave for Yamaha

The primary fixed sheave is the fixed half of the front clutch assembly on Yamaha Bruin 350 models, working with the sliding sheave and belt to transfer engine power to the drivetrain.

Overview

This primary fixed sheave is a direct replacement clutch component for Yamaha Bruin 350 2X4 and 4X4 models, providing the fixed face that the drive belt rides against inside the primary clutch. Built to factory dimensions, this primary fixed sheave helps restore proper belt alignment and smooth power delivery on YFM350 machines from 2004 through 2006. It suits riders performing routine clutch service or rebuilding a worn primary assembly.

Built For Performance

• Machined sheave face for consistent belt contact and alignment
• Constructed from durable metal to withstand continuous clutch engagement
• Designed as a direct fit replacement for the factory primary fixed sheave
• Balanced to reduce vibration at operating RPM
• Compatible with standard Yamaha Bruin 350 drive belts

Fits These Machines

• for Yamaha Bruin 350 2X4
• for Yamaha Bruin 350 4X4
• for Yamaha YFM350 models 2004-2006

On-The-Job Use

• Trail riding and general recreation on Bruin 350 ATVs
• Farm and property work where the machine runs under load
• Clutch rebuilds and belt replacement service
• Restoring worn primary clutch assemblies

Specs At A Glance

Good To Know

Q: Is this an original Yamaha part? A: No, this is an aftermarket replacement primary fixed sheave made for Yamaha Bruin 350 machines and is not an original manufacturer part.

Q: Should I replace other clutch parts at the same time? A: Inspect the sliding sheave, rollers, and drive belt while the clutch is apart, since worn parts often need replacing together for best results.

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