Genuine MTD Blade Brake Spring for Tractor Lawnmowers sold under many brands such as Massey Ferguson, Black Edition, GuTBROD, MTD, Helington, Gardenland. This spring carries the manufacturer reference number 732-04287, total length approx. 170mm Diameter 12.5mm This spring is mounted instead of the defective spring to give your self-load the necessary safety for work. Other spring models available for MTD and other brands.