BigBearing & HiTorq 205ftlb Upgrade Blade Clutch & 10A PTO Switch LVA21437 fits John Deere M653 M655 M665 737 757 777 797 Mowers with Warner 5218-91 & 5218-303 5218-307 ONLY - HD Switch TCA12522

• Please check your clutch for the correct replacement. The ZTrak series used two very differnt clutches. The first was the Warner 5218-91 (this listing). They later switched to TCA15800 which is a very different clutch. This Listing does NOT replace the TCA15800. Tough Billet Pulleys: Billet Pulleys Reduce Belt Wear and Maintain Perfect Blade Speed. Our Billet Pulley Design uses a Snap Ring and Allows for Bearing Replacement. High Torque Coil: Higher Torque Means this Clutch holds Strong Even in the Toughest Cuts. Premium C3 Bearings: HD Designed and Spec’d these bearings with C3 Clearances, Premium High Temperature Grease and on Most Models a Larger Tougher Bearing. Cool Coil Technology: We use a Proprietary Composite Material Instead of Plastic. This Allows the heat to Escape the Clutch Faster. Less Heat = Longer Life