ELECTRIC PTO CLUTCH FOR GRAVELY. Ogura Electric PTO Clutch replaces Ariens/Gravely 59118500, old number 05118900 (GT1.5-AR09). Fits Gravely ZT HD44, ZT HD48, ZT HD52, ZT HD60, Pro-Turn Z48, Pro-Turn Z52 and Pro-Turn Z60. Also fits Ariens Apex 48, Apex 52 and Apex 60. GRAVELY: ZT HD 44, ZT HD 48, ZT HD 52, ZT HD 60, Pro-Turn Z48, Pro-Turn Z52, Pro-Turn Z60. ARIENS: Apex 48, Apex 52, Apex 60. Suggest an idea?? Something else (please specify).