New electric PTO clutch for Cub Cadet riding lawn mowers. This clutch fits many models as listed below but ultimately it is the buyers responsibility to ensure Cub Cadet part number 917-04180, 717-04180 or 717-3403 is correct for their application. There are often model changes, serial number breaks, configurations and other factors that need to be considered when identifying the correct clutch for the application. This clutch is made by Warner Electric, just like the original. It is Warner part number 5219-133. 
This clutch can be found on Cub Cadet models 1863, 1864, 2086, 2176, 2185, 2186, 2206, 2284, 2518, GT2186, GT2523, GT2544, GT2550, GT2554 and LT2042 HOWEVER the correct clutch must still be identified by the buyer. This is not a complete list.