The Massey Ferguson 3580528M91 is a genuine OEM synchronizer gearbox designed for the A-B range of various Massey Ferguson tractor series. This critical component ensures smooth gear engagement and reliable power transmission. It is compatible with Massey Ferguson 3000, 3100, 3600, 6100, 6200, 8100, and 8200 series models, including specific models such as 3050, 3060, 3065, 3070, 3075, 3080, 3085, 3090, 3095, 3115, 3120, 3125, 3610, 3630, 3635, 3645, 3650, 3655, 3660, 3670, 3680, 3690, 6110, 6120, 6130, 6140, 6150, 6160, 6170, 6180, 6190, 6230, 6240, 6255, 6260, 6265, 6270, 6280, 6290, 8110, 8120, 8130, 8140, 8150, 8160, 8170, 8180, 8210, 8220, 8240, 8250, 8260, 8270, and 8280.