Description PTO clutch disc for 10-spline PTO disc. Tractors: TO35, MF35, MF50, MF65, MF135, MF150, MF165, MF175, MF180. Industrials: 20, 30, 40. This item is a suitable alternative for the following: 3620411M91, 2595020, 1753753M93, 1753753M92, S40712, 1753753M91, 392492, S.40712, SAT84, 1034195M92, 778613, 899823M91, 969433M2, A100179, A-100179