Description Brake disc, 8-7/8" x 6", 27 spline. Tractors: MF135, MF165, MF175, MF180, MF235, MF255, MF265, MF275, MF285, MF1080, MF1085. Industrials: 30, 31, 40. Replaces 1805980M1. This item is a suitable alternative for the following: 1044526M1AF, S61126, S.61126, A1044526M1, A-1044526M1, 1044526M91, 1805980M1, 3609064M1, 3609079M1, 774944