The McCormick 6633978A1 Clutch Disc is a genuine OEM component designed for optimal power transmission in various agricultural machinery. This clutch disc features an outer diameter of 310 mm, an inner diameter of 190 mm, and 10 splines, ensuring precise fitment and durable performance. It is compatible with a wide range of McCormick, Case IH, and New Holland tractors, including the McCormick CX and MC series, Case IH CX and MXM series, and New Holland TL, TS, and TSA series. This essential part maintains the integrity and efficiency of your tractor's driveline.