The McCormick 3657986M91 is a genuine OEM clutch designed for various McCormick CX series and Massey Ferguson tractor models. This essential component ensures reliable power transmission and smooth operation. Key fitment includes McCormick CX50, CX60, CX70, CX75, CX80, CX85, CX90, CX95, CX100, CX105, CX110, CX110L, and Massey Ferguson 4215, 4220, 4225, 4235, 4240, 4245, 4255, 4260, 4265, 4270, 4316, 4320, 4325, 4335, 4345, 4355, 4360, 4370, 5335, 5340, 5355, 5360, 5365, 6235, 6245, 6255, 6260, 6265, 6270, 6280, 6290, 6445, 6455, 6460, 6470, 6475, 6480, 6485, 6490, 6495, 6497, 6499, 8210, 8220, 8240, 8250, 8260, 8270, 8280. It measures approximately 254mm in length, 254mm in width, and 50.8mm in height, with a weight of 0.45 kg.