Heavy Duty Blower Motor Repair Kit - HD Ball Bearing Motor with Steel WheelsOEM part numbers 1997399C3, 1987399C2 Item Information Replaces Bushing Style Motor with New HD Bearing Style Motor With 48" Wire Leads Can Use Blower Motor without Wheels BM20057HD Additional Information Early Series 4 Wire BW212 and BW216 Wheels 04 01 1973 to 12 31 1981 3 8" Double Shaft 4 Wire Specifications TYPE Double Shaft, 3 Speed SHAFT SIZE 3 8" SHAFT LENGTH 4 1 4" MOTOR DIAMETER 3 1 2" MOTOR LENGTH 4 1 8" OVERALL LENGTH 13 1 2" ROTATION