The Case IH 3405506R1 Synchronizer Ring is a genuine OEM component designed for the transmission systems of a wide range of Case IH tractor models. This essential part ensures proper engagement and smooth synchronization of gears, preventing grinding and wear during shifts. It is compatible with models including 100, 105, 110, 115, 120, 125, 130, 135, 140, 4210, 4230, 4240, 5120, 5130, 5140, 5220, 5230, 5240, 5250, 7110, 7120, 7130, 7140, 7150, 7210, 7220, 7230, 7240, 7250, 8910, 8920, 8930, 8940, 8950, MX100, MX110, MX120, MX135, MX150, MX170. This synchronizer ring is crucial for maintaining the efficiency and longevity of your tractor's transmission.