The Case IH 3399722 is a genuine OEM gear lever knob designed for a range of Case IH and International Harvester tractors, including models from the 845XL, 956XL, and 1056XL series. This original replacement part ensures proper fit and function for the transmission control lever, maintaining the ergonomic integrity and operational efficiency of the tractor's cabin. Made to Case IH's exacting standards, it provides a durable and reliable solution for worn or damaged original knobs.