When your clutch starts slipping during heavy field work or you notice it's grabbing differently than it used to, it's time to get things back to how they should be. This 13-inch clutch disc is built to handle the power your Massey Ferguson puts out, whether you're pulling a cultivator through tough ground or running a PTO-driven implement all day long. What You're Getting 13-inch organic disc with fine splined spring design that smooths out engagement 21-spline hub that matches your transmission perfectly - no slop, no wear Organic facing material that grabs consistently and wears evenly over time Spring-loaded center that dampens driveline shock and reduces gear noise Direct replacement design - no modifications needed Built for Real Farm Work This disc fits the workhorses of many farm operations - those reliable 300 series tractors like the 390, 390T, 398, and 399, plus the bigger 600 series 699 model. These are the tractors you count on for cultivation, hay work, and running all kinds of implements. Whether you're working a few hundred acres or running a custom operation, these machines earn their keep every day. Made to Last The organic facing material handles normal farm conditions well and provides smooth engagement that's easier on your transmission and engine. The spring-loaded hub design absorbs the shock loads that come with changing field conditions and varying engine speeds, which helps extend the life of your entire drivetrain. Good to Know This disc works as part of clutch kits 2781 and 2781L if you're doing a complete clutch rebuild. When installing, make sure the flywheel surface is clean and true - any glazing or hot spots should be machined off. The 21-spline design ensures it'll engage properly with your transmission input shaft without any play that could cause premature wear.