EXACT OEM REPLACEMENT: Direct replacement for Ariens 59118500, Gravely 05118900, Gravely 59118500 and Ogura 53797600. Built to OEM specifications with a 1 bore and 7.16 outside diameter for precise fit and dependable performance. WIDE MODEL COMPATIBILITY: Compatible with Gravely ZT HD44, ZT HD48, ZT HD52, ZT HD60, Pro-Turn Z48, Z52, Z60, and Ariens Apex 48, 52, 60. Please verify your model and OEM number before ordering. SMOOTH PTO ENGAGEMENT: Engineered for fast, stable clutch engagement to transfer engine power efficiently to the mower blades. Helps reduce engagement shock while providing consistent blade operation and reliable cutting performance. HEAVY-DUTY CONSTRUCTION: Manufactured from premium steel and high-quality electromagnetic components for excellent wear resistance, heat resistance, and long service life. Built to withstand demanding mowing conditions and repeated PTO cycles. EASY DIRECT INSTALLATION: Designed as a direct-fit Electric PTO Clutch with OEM-style dimensions for straightforward installation. No modifications required. Each unit is tested before shipment to ensure dependable operation and long-lasting reliability. ASIN B0H87KV74X Item Weight 11.37 pounds Manufacturer Dasbecan Item model number 59118500 Product Dimensions 7.68 x 4.92 x 7.87 inches