Heavy duty. Hydraulic assist recommended. Used w/ Disc 104495.Converting to a 14" clutch is an option for this machine by using the following part numbers: HH672215 Flywheel & 120181 Kit Clutch Kit. If your tractor has Hydraulic Assist it is recommend to use 67597N Kit for the clutch.The 104496 12" Single Stage Pressure Plate, w/ 1-3/4" 17 Spline Hub - New fits equipment brands such as: InternationalThe 104496 is a substitute for the following discontinued products: 1044979