When your PTO starts slipping or won't engage cleanly, it's usually that clutch disc that's worn down from years of hard use. Nothing's more frustrating than having your implement bog down or not getting full power to your hay baler or mower when there's work to be done. This 12-inch PTO disc puts that smooth power transfer back where it should be, so you can get back to running your equipment the way it's supposed to work. What You're Getting 12-inch diameter disc with 10-spline hub handles the power these older tractors are known for 1-1/8 inch bore fits the PTO shaft exactly like the original Quality friction material that grips properly without grabbing too hard Built to the same specs as the original equipment that came on your tractor Built for Real Farm Work This disc fits David Brown tractors from the 1200, 1400, 90, and 94 series, plus Leyland models like the 285, 485, and 2100. These are the reliable workhorses that have been moving hay, running mowers, and powering implements on farms for decades. Whether you're running a brush hog, operating a PTO-driven pump, or pulling a rotary cutter, this is the same type of disc that's been getting the job done for years. Made to Last The friction material on this disc is formulated to handle the heat and stress that comes with PTO work. It won't chatter when engaging and provides smooth, consistent power transfer even under load. The splined hub is heat-treated to resist wear from the constant engagement cycles that are part of daily farm work. Good to Know Replacing a PTO disc means splitting the tractor, so it's a good time to check your main clutch disc and pressure plate while everything's apart. If you're doing the work yourself, having a clutch alignment tool makes reassembly much easier. Check your flywheel surface for any heat damage or scoring while you've got access to it.