40178M07700 Wiseco Std Piston Kit for Kawasaki KX250F 2017-2019 76.96mm 14:5:1 C

Wiseco Std Piston Kit for Kawasaki KX250F

This Wiseco standard piston kit for Kawasaki KX250F models is a 76.96mm, 14.5:1 compression ratio piston assembly built to restore top-end performance. This Wiseco piston kit for Kawasaki KX250F delivers the strength and reliability expected from Wiseco. The piston kit is a direct replacement for OEM part 40178M07700.

Overview

This Wiseco standard piston kit for Kawasaki KX250F motocross bikes provides the components needed for a top-end rebuild with the original 76.96mm bore size and 14.5:1 compression ratio. The kit suits riders and mechanics looking for a dependable replacement that matches the factory piston dimensions. It fits 2017 through 2019 Kawasaki KX250F machines.

Built For Performance

• 76.96mm standard bore piston maintains the factory cylinder bore without machining required
• 14.5:1 compression ratio matches the factory specification for strong mid-range power
• Fits OEM part reference 40178M07700
• Wiseco forged piston construction offers strength for high-rpm motocross use
• Kit includes piston, rings, pin, and circlips for a complete top-end refresh

Fits These Machines

• for Kawasaki KX250F (2017)
• for Kawasaki KX250F (2018)
• for Kawasaki KX250F (2019)

On-The-Job Use

• Top-end rebuilds on KX250F engines
• Restoring compression after ring wear or cylinder scoring
• Routine overhaul during valve and cylinder head service

Specs At A Glance

Good To Know

Q: Is this a factory original piston? A: No, this is a Wiseco piston kit and is not an original Kawasaki part. It is a direct replacement that cross-references the OEM number listed.

Q: Does the kit include everything needed for installation? A: This kit ships as a complete piston assembly with the piston, rings, wrist pin, and circlips. Always verify bore condition before assembly.

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