These billet KX250 engine cases are the ideal solution for anyone looking to swap the 1999–2004 KX250 engine into the latest Kawasaki chassis. These cases are engineered for a seamless fit into the 2024–2026 KX450 and 2025–2026 KX250 frames.
By using your original or aftermarket 1999–2004 internals, your engine will be ready to drop into the modern four-stroke chassis with no modifications required. These cases feature several upgrades over the stock units, including optimized transfer ports and an integrated hydraulic clutch system that utilizes the stock KX450/250 line and master cylinder.
What's included?
-
Billet Left and Right center cases (Specifically for 1999–2004 internals)
-
Billet clutch slave cylinder
-
316 Steel case saver
-
Cylinder head stays and upper engine mounts (Includes all hardware)
-
Fuel pump delete kit
-
Expansion chamber and silencer hangers
-
Aluminum CDI mount
-
Cooling line kit
What's needed?
-
Expansion chamber
-
Exhaust silencer
- Note: for 99-02 KX250 donor engines will require our billet conversion cylinder head here
