504078065 Belt Tensioner Pulley Genuine FPT OEM part, brand new. OEM part number: 504078065 Brand: FPT Condition: Brand new Multiple V-belt tensioning roll. Fits: NEW HOLLAND 450, 480, 500, 550, 600, 650, 780, T9.450, T9.480, T9.505, T9.530, T9.560, T9.565, T9.600, T9.615, T9.645, T9.670, T9.700, T9030, T9040, T9050 applications.