Spindle Assembly Includes grease zerk, pulley lock nut, blade lock nut and washer, OD: 5 ", Specially designed: to replace 7 pt. star spindle shaft, Height: 7 ". Replaces Part Numbers: John Deere GY21098, John Deere GY20962, John Deere GY20867, John Deere GY20454 Stens Part Number: 285-851