John Deere Original Equipment Belt Set – AH158880 Part Specifications: Belt Section (ALPHA) HCEffective Length (MM) 2375.0000Number of Belts (UNITY) 2.0000Width (MM) 22.3520Thickness (MM) 13.4620Matched Set (ALPHA) 2HCAngle (ALPHA) 34Material Spec (ALPHA) HDNote (A) There is more information on the engineering blue print that is not shown in detail here. Fits the following John Deere models:Combine: 9400, 9410, 9450, 9500SH, 9510, SH9510, 9550SH, 9550, 9560SH, 9560, 9600, 9610, 9650CTS, 9650, 9660CTS, 9660, T560, W540, 9640WTS, 9640i WTS, 9660 WTS, 9660i WTS, 9680WTS, 9680i WTS, 9780CTS, 9780i CTS, C670, T550, T560, T660, T670, W540, W550, W650, W660. This is an O. John Deere Original Equipment Belt Set – AH158880. Part Specifications: Belt Section (ALPHA) HC Effective Length (MM) 2375.0000 Number of Belts (UNITY) 2.0000 Width (MM) 22.3520 Thickness (MM) 13.4620 Matched Set (ALPHA) 2HC Angle (ALPHA) 34 Material Spec (ALPHA) HD Note (A) There is more information on the engineering blue print that is not shown in detail here. Fits the following John Deere models: Combine: 9400, 9410, 9450, 9500SH, 9510, SH9510, 9550SH, 9550, 9560SH, 9560, 9600, 9610, 9650CTS, 9650, 9660CTS, 9660, T560, W540, 9640WTS, 9640i WTS, 9660 WTS, 9660i WTS, 9680WTS, 9680i WTS, 9780CTS, 9780i CTS, C670, T550, T560, T660, T670, W540, W550, W650, W660.