Complete Tractor Starter Drive For John Deere 240 Mower; 245 Mower; 2500 Mower; 100% new starter drive meets OEM quality for tractors and farm equipment 1-year warranty covers you throughout planting and harvesting seasons Factory direct pricing delivers an honest value for hard-earned money Replaces OEM Numbers: John Deere: AM105579 Specs: Teeth : 9 teeth, Rotation : CW, Spline : 4 spline, Notes : Starter drive for diesel and gas applications.