For Yamaha Grizzly 400 450 YFM450 400 Starter Clutch Sprag w/Gear Idler w/Gasket

Starter Clutch Sprag w/Gear Idler for Yamaha Grizzly 400 450

This starter clutch sprag with gear idler is a replacement starter drive assembly for the Yamaha Grizzly 400 and 450 YFM450, restoring the one-way engagement that spins the engine during electric start. The gear idler pairs with the sprag to complete the starter drive path. Built for Grizzly 400 and 450 owners and shops doing starter clutch repairs.

Overview

This starter clutch sprag with gear idler is made for the Yamaha Grizzly 400 and 450 YFM450 platforms. The sprag provides the one-way locking action that transfers starter torque to the engine, while the gear idler completes the drive connection inside the housing. A practical fix for Grizzly 400 and 450 machines with a slipping or failed starter clutch.

Built For Performance

• One-way sprag clutch for reliable starter-to-engine torque transfer
• Matching gear idler included to complete the starter drive assembly
• Direct replacement for the factory starter clutch sprag on Grizzly 400 and 450 models
• Heat-treated steel construction for repeated start cycles
• Designed as a matched sprag and idler set for consistent engagement

Fits These Machines

• for Yamaha Grizzly 400
• for Yamaha Grizzly 450 YFM450
• for Yamaha Grizzly 400 YFM400

On-The-Job Use

• Replacing a worn starter clutch sprag on Grizzly 400 and 450 ATVs
• Servicing machines that crank without catching during electric start
• Starter drive repairs that require a new gear idler alongside the sprag
• Trail and utility Grizzly ATVs with frequent start-stop use

Specs At A Glance

Good To Know

Q: Does this kit include both the sprag and the gear idler? A: Yes, this listing supplies the starter clutch sprag together with the matching gear idler. Both parts are used together in the starter drive assembly.

Q: Will this fit a Grizzly 450 YFM450? A: It is listed for the Grizzly 400 and 450 including the YFM450. Confirm your model code and year on the machine before ordering.

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