Namura .020 Over Bore Piston Kit for Kawasaki KFX400 2003-2006 models 90.5mm

.020 Over Bore Piston Kit for Kawasaki

This .020 over bore piston kit for Kawasaki KFX400 models from 2003-2006 features a 90.5mm piston diameter, designed to restore compression and power after cylinder overboring.

Overview

This .020 over bore piston kit is specifically engineered for Kawasaki KFX400 engines from 2003 to 2006, providing a high-quality replacement piston that matches the 90.5mm bore size. It is ideal for rebuilding the top end after cylinder wear or for performance tuning, ensuring a proper fit and reliable operation.

Built For Performance

• Includes piston, rings, wrist pin, and circlips for a complete installation
• Manufactured from high-silicone aluminum alloy for strength and heat dissipation
• Precision-machined to .020 inch oversize (90.5mm) for exact cylinder fit
• Ring package designed to reduce blow-by and improve compression
• Coated skirt reduces friction and extends engine life

Fits These Machines

• for Kawasaki KFX400 (2003-2006)

Specs At A Glance

Good To Know

Q: Is this piston kit suitable for a 2005 Kawasaki KFX400? A: Yes, this kit fits all 2003-2006 KFX400 models, including the 2005. Always confirm your cylinder bore condition before ordering the oversize.

Q: What does .020 over bore mean? A: It means the piston is 0.020 inches larger than the standard bore size, typically used when the cylinder is worn and needs to be bored to the next oversize.

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