Log Splitter Build Kit: 11 GPM Pump, Coupler, Mount, Bolts, Huskee, Speeco, etc (for 3/4″ Engine Crankshaft). Excellent for use on log splitters, 85% efficient. 4 Bolt Holes Spaced 2in. Rotation: Clockwise Small Pump Mount: Length: 4-1/6″ Pump Side: 2-3/4″ bolt circle, 2″ center-center (8 mounting holes, so you can mount the pump at a right-angle or at a 45 degree angle to fit your specific need – versatile!).