The Case IH 83981923 is a genuine OEM starter motor designed for reliable engine ignition in various Case IH agricultural tractors. This 12-volt, 3-kilowatt starter features 10 teeth, ensuring efficient engagement with the flywheel. It is a direct replacement for original equipment in models including the MX100, MX110, MX120, MX135, MX150, MX170, 5120, 5130, 5140, 5220, 5230, 5240, 5250, 7110, 7120, 7130, 7140, 7150, 7210, 7220, 7230, 7240, 7250, 8910, 8920, 8930, 8940, and 8950 series.