Splined Coupling Fits JD | Aftermarket H128861.

Description:
Heavy-duty aftermarket splined coupling designed to replace OEM H128861 on John Deere combines. Engineered to withstand the torque and load of unloading auger systems while providing reliable connection between shafts.

Type: Splined coupling (donut style) – unloading auger drive
Replaces OEM: H128861
Function: Connects the vertical unloading auger shaft or drive end of the horizontal unloading auger to the drive system. Maintains spline engagement under load to transmit torque smoothly and reduce wear in the grain discharge system.
SKU: DCP-H128861
Dimensions: Outer diameter approx. 108.6 mm; 19-spline internal coupling. Other bore length and spline depth must be confirmed per machine serial number.
Weight: Not officially published — list as “weight available on request”.
Value: Factory to Farmer pricing — tough build, honest price
Fits Models: John Deere combines such as CTS, CTS II, 6620, 6622, 7720, 7721, 8820, 9400, 9410, 9450, 9500, 9500 SH, 9510, 9550, 9600, 9650, 9660, 9680 WTS and others — confirm serial-specific fitment.