The Toro OEM 137 9787 Hex Bushing is specially designed to fit inside the shaft/blade arbor to reduce torque fluctuations from potential impacts. This essential component is compatible with Toro Grandstand and ZMaster 3000, 4000, 5000, 6000, 7000, and 7500 series. To confirm proper compatibility, consult the model fit guide below. NOTE: 137-9787 Hex Bushing is used in conjunction with Spindle Assembly 137-9780 and Spindle Assembly Shaft 138-6045. Spindle Assembly Shaft 138-6045 does attain a Hex Insert. Refer to the above image with an arrow and the links bellow for other references. To View Additional Part number information or parts associating with Hex Bushing 137-9787 click on the Spindle Assembly part Number 137-9780. Blade Bolt 109-9220 is required with 137-9787 Hex Bushing to view part click on Associated Part Number. Specification Product Number: 1379787 Brand: Toro Length: 1.600 IN (4.064 CM) Width: 1.600 IN (4.064 CM) Height: 1.200 IN (3.048 CM) Weight: 0.246 LB (0.112 KG) Model Fit: 31974, 31975, 72096, 72028, 72029, 72076, 72074, 72950, 72952, 72949, 72958, 72946, 72947, 72969, 72959, 72932, 72936, 72904, 72906, 72915, 72918, 72930, 72943, 72945, 72955, 72951, 72926, 72928, 74090, 72960, 72961, 72967, 72968, 72266, 72267, 72274, 72504, 72505, 71504, 71505, 72513, 72519, 72518, 72523, 72529, 72921, 72922, 72911, 72912, 72910, 72965, 72509, 74000, 74002, 74004, 74050, 74054, 74035, 74052, 74055, 74010, 74015, 72065, 72512, 72144, 72098, 72980, 72982, 74020, 74022, 72027, 72030, 72524, 72530, 72506, 72510, 72514, 72517, 72520, 74024, 74057, 72507, 72907, 72923, 72953, 72956, 72908, 72924, 72957, 72976, 72977, 72981, 72983
