When your clutch starts slipping under load or won't disengage cleanly when you're shifting gears, it's time for a replacement that'll handle the serious work your Massey Ferguson was built to do. This 13-inch LUK diaphragm clutch assembly gives you the smooth, reliable power transfer you need to keep pulling through tough field conditions and running PTO equipment without missing a beat. What You're Getting Genuine LUK quality pressure plate with diaphragm spring design for consistent clamping force and smooth operation 13-inch diameter provides the torque capacity needed for heavy implements and demanding field work 1 5/8-inch input shaft with 25 splines for secure connection to your transmission Professional-grade construction that handles the punishment of farm work season after season Direct replacement design - no modifications needed for proper installation Built for Real Farm Work This clutch assembly is engineered for the mid-range Massey Ferguson tractors that handle the bulk of farm work - from the versatile 300 series utility tractors through the powerful 4200 and 4300 series row-crop machines. Whether you're running a disc harrow through heavy residue, pulling a grain cart during harvest, or operating a rotary cutter in thick brush, this clutch delivers the smooth engagement and holding power these tractors are known for. Made to Last LUK has been building clutches for decades, and they know what it takes to handle farm conditions. The diaphragm spring design provides even pressure distribution across the clutch disc, preventing hot spots and premature wear. The heavy-duty construction resists heat buildup and maintains proper clamping force even after thousands of engagement cycles. Installation Notes Like all clutch work, this requires splitting the tractor - typically a job for experienced mechanics with the right tools and workspace. While you've got things apart, it's smart to check the input housing seal kit (part 63458) to prevent future oil leaks that could contaminate your new clutch. Make sure your flywheel surface is smooth and true before installation for best results.