This hinge is an original component for the rear window of the host tractor. It is mounted on the body panel and provides the pivot point for the glass, allowing it to swing open and secured closed. Over time, the hinge pin and mounting flange can wear, causing the window to sag or bind during operation. This original part is manufactured to the same geometry as the factory assembly, ensuring the window aligns correctly with the latch and seal without requiring shimming or modification.