The Kohler M18 engine is a horizontal shaft 2 cylinder engine. It is a very useful engine to drive outdoor gear such as hydraulic log splitters, agricultural pumps or generators. Wherever you need a source of power, this engine can be adapted. Kohler understands its engines well and provides an extensive service manual that includes all the specifications for the engine.
Kolher states that the engine produces 18 horsepower, and it has a displacement of 42.18 cubic inches. Kohler further stated that the engine’s bore is 3.12 inches, and its stroke is 2.75 inches. The bore is the diameter of the piston. The stroke is how far the piston travels in the cylinder. The engine weighs approximately 130 pounds. (See Reference 1)