Namura .020 Over Bore Piston & Top End Gasket Kit for Kawasaki KFX400 90.5mm

.020 Over Bore Piston & Top End Gasket Kit for Kawasaki

This Namura .020 over bore piston and top end gasket kit is a high-quality replacement for Kawasaki KFX400 engines, providing a 90.5mm bore size for a performance rebuild.

Overview

This Namura .020 over bore piston and top end gasket kit is designed for the Kawasaki KFX400, delivering a 90.5mm bore size for a reliable engine rebuild. It includes a high-strength piston and all necessary gaskets for a complete top end overhaul. Ideal for riders seeking to refresh their KFX400 powerplant with a durable replacement kit.

Built For Performance

• Precision-cast aluminum piston for reduced weight and strength
• .020 oversize bore increases displacement and compression
• Complete gasket kit includes all top end seals for easy installation
• Designed to meet OEM specifications for reliable fitment
• High-temperature resistant materials for durability under load

Fits These Machines

• for Kawasaki KFX400

On-The-Job Use

• Off-road racing and trail riding
• Engine rebuild and performance restoration
• Regular maintenance and unexpected top end failure repair
• Dune and desert riding conditions

Specs At A Glance

Good To Know

Q: Is the piston pin included? A: The kit typically includes the piston pin and circlips; verify contents before installation.

Q: Do I need to re-ring with this kit? A: Yes, new piston rings are included and should be installed for proper sealing.

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