The Massey Ferguson 406553M91 is a genuine OEM tension pulley designed to maintain proper belt tension in a wide range of Massey Ferguson agricultural and industrial machinery. This critical component ensures efficient power transmission and extends the life of drive belts. With an outer diameter of 88.9 mm, an inner diameter of 17.5 mm, and a width of 38.1 mm, this durable pulley weighs approximately 0.36 kg. It is compatible with numerous MF tractor models including 1080, 1085, 1100, 1105, 1130, 1135, 1150, 1155, 165, 175, 180, 255, 265, 275, 285, 290, 298, 3050, 3060, 3070, 3075, 3080, 3090, 3095, 3120, 3125, 3140, 3165, 3505, 3525, 3545, 3630, 3645, 3650, 3655, 3660, 3670, 3680, 3690, 390, 390T, 398, 399, 4225, 4235, 4240, 4245, 4255, 4260, 4265, 4270, 4325, 4335, 4345, 4355, 4360, 4370, 50, 50E, 50H, 50HX, 565, 575, 590, 592, 595, 60, 60H, 60HX, 6120, 6130, 6140, 6150, 6160, 6170, 6180, 6190, 6235, 6245, 6255, 6260, 6265, 6270, 6280, 6290, 675, 690, 698, 698T, 699, 8110, 8120, 8130, 8140, 8150, 8160, 8210, 8220, 8240, 8250, 8260, 8270, 8280, 860, 865, 980, 985, and industrial models 20D, 20F, 30D, 30E, 40E, 50A, 50C, 50D, 40, 50.