Namura Standard Bore Size B Top End Repair Kit for Yamaha WR450F 2003-2006 95mm

Namura Standard Bore Size B Top End Repair Kit for Yamaha WR450F

This top end repair kit provides all necessary components to rebuild the cylinder head and piston assembly for Yamaha WR450F models from 2003 to 2006, featuring a standard bore size B at 95mm.

Overview

This Namura top end repair kit includes piston, rings, wrist pin, and gaskets to restore compression and power in Yamaha WR450F engines. It is designed for standard bore size B (95mm) and fits 2003-2006 WR450F models. The kit ensures a reliable rebuild for off-road riding and competition.

Built For Performance

• Includes precision-machined piston for optimal ring seal
• High-quality rings reduce friction and improve longevity
• Complete gasket set prevents leaks and contamination
• Wrist pin and clips included for secure assembly
• Standard bore size B ensures direct replacement fitment

Fits These Machines

• for Yamaha WR450F 2003
• for Yamaha WR450F 2004
• for Yamaha WR450F 2005
• for Yamaha WR450F 2006

On-The-Job Use

• Trail riding and enduro competition
• Engine rebuild after high-mileage use
• Restoring power and reliability for off-road adventures

Specs At A Glance

Good To Know

Q: What is included in the top end repair kit? A: The kit includes piston, rings, wrist pin, circlips, and a full gasket set for a complete top end rebuild.

Q: How do I verify fitment for my specific WR450F? A: Check your cylinder bore size and confirm it measures 95mm and that your engine year falls between 2003 and 2006.

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