This PTO shaft end connects the tractor's power take-off to the implement driveline. It is the female or male coupler that transfers rotational torque through the splined interface. The six-spline profile matches the standard PTO output shaft on the host tractor. Wear on the splines or the internal bore causes backlash and vibration during operation, which can damage the driveline components. This part is manufactured by AGCO to the same dimensional tolerances as the original assembly, ensuring the splines engage fully without excessive play. On installation, inspect the retaining pin or locking mechanism for wear and replace if necessary.