18.4406 ProX Inner Clutch Hub for Kawasaki KX450F KX 450F 2006-2020

Inner Clutch Hub for Kawasaki

This ProX inner clutch hub is a replacement clutch basket component that holds the clutch plates and transfers drive to the transmission on Kawasaki KX450F models, cross-referencing OEM part number 18.4406.

Overview

This ProX inner clutch hub is built to replace a worn or damaged clutch hub on Kawasaki KX450F machines from 2006 through 2020. The inner clutch hub centers the clutch pack and works with the basket to deliver smooth power engagement, making it a solid choice for riders rebuilding a tired clutch. For anyone servicing a KX450F, this inner clutch hub restores reliable clutch function.

Built For Performance

• Precision-machined splines for a positive fit on the main shaft
• Constructed to handle the torque of a modern 450cc four-stroke
• Designed as a direct replacement for the OEM inner hub
• Hardened surface to resist wear from repeated clutch engagement
• Balanced design to reduce vibration at high rpm

Fits These Machines

• for Kawasaki KX450F 2006
• for Kawasaki KX450F 2007
• for Kawasaki KX450F 2008
• for Kawasaki KX450F 2009
• for Kawasaki KX450F 2010
• for Kawasaki KX450F 2011
• for Kawasaki KX450F 2012
• for Kawasaki KX450F 2013
• for Kawasaki KX450F 2014
• for Kawasaki KX450F 2015
• for Kawasaki KX450F 2016
• for Kawasaki KX450F 2017
• for Kawasaki KX450F 2018
• for Kawasaki KX450F 2019
• for Kawasaki KX450F 2020

On-The-Job Use

• Clutch rebuilds on KX450F four-stroke motocross bikes
• Motocross and supercross racing where clutch durability matters
• Restoring a used KX450F to running condition
• Routine clutch service when the hub shows notching or wear

Specs At A Glance

Good To Know

Q: Do I need any other parts when replacing the inner hub? A: An inner hub is commonly replaced together with the clutch basket, plates, and springs for a complete clutch service. Inspect the basket for notching before installing the new hub.

Q: Is this an original Kawasaki part? A: No, this is a ProX replacement inner clutch hub made for Kawasaki KX450F models. It is designed to fit and function in place of the original hub.

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