General description The 42.5MM Cylinder Piston Engine Motor Rebuild Kit is designed for the 025, MS250, 023, MS230, and MS230 250 chainsaws. This comprehensive kit includes all the essential components needed for a complete engine rebuild, ensuring optimal performance and longevity of your chainsaw. Technical specifications Cylinder diameter: 42.5mm Bolt diameter: 10mm Material: Metal Package Contents 1 x Cylinder 1 x Piston Assembly 1 x Crankshaft 1 x Cylinder engine pan 1 x Manifold 2 x Grooved ball bearings 2 x Oil seals 1 x Spark plug Other information