If your John Deere mower's deck isn't engaging like it should, you might need a new PTO clutch. This is a brand new one from Parts-AutoClub that'll fit a bunch of those X-series mowers, like the X360, X500, X305R, X520, X530, X534, and X540. It's a direct replacement for a bunch of OEM numbers, including AM141536, AM136787, and also crosses over to 5219-88, 5219-62, and 5219-87. Runs off the diesel engine, whatever horsepower yours has. Comes with a 1-year warranty, so you're covered. Brand new in the box, ready to bolt on and get you cutting again.