4980M09600 Wiseco Std Piston Kit for Kawasaki KX450F 2009-2012 96mm 12.5:1 CR

Wiseco Std Piston Kit for Kawasaki KX450F

This Wiseco standard piston kit for Kawasaki KX450F restores top end compression with a 96.00 mm bore and 12.5:1 compression ratio, cross referenced to 4980M09600.

Overview

This Wiseco standard piston kit for Kawasaki KX450F delivers a direct replacement top end solution for riders rebuilding a worn or damaged engine. The 96.00 mm bore and 12.5:1 compression ratio are engineered to match original equipment dimensions while providing dependable performance. It suits racers and enthusiasts who demand consistent power delivery from their KX450F.

Built For Performance

• 96.00 mm standard bore sizing matches original cylinder dimensions for a drop in fit
• 12.5:1 compression ratio engineered for strong mid range and top end power
• Wiseco forged piston construction for high strength and heat resistance
• Complete kit includes piston, rings, wrist pin, and circlips for a full top end rebuild
• Precision machined ring grooves for consistent sealing and compression
• Cross referenced to part number 4980M09600 for easy verification

Fits These Machines

• for Kawasaki KX450F 2009
• for Kawasaki KX450F 2010
• for Kawasaki KX450F 2011
• for Kawasaki KX450F 2012

On-The-Job Use

• Top end rebuilds after piston wear or ring fatigue
• Motocross and off road racing maintenance intervals
• Restoring compression on high hour KX450F engines
• Engine refresh during valve and cylinder service

Specs At A Glance

Good To Know

Q: Do I need to rehone or rebore my cylinder for this kit? A: This is a standard bore piston, so it fits a cylinder still within factory specification. Have the bore measured before installing to confirm it is in tolerance.

Q: What else should I replace during this top end job? A: Top end service typically includes a new head gasket, base gasket, and possibly a cam chain depending on hours. Inspect the cylinder and valve seats while the engine is apart.

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