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 01 01 1981 to 09 30 1985 With BW212 and BW216 Wheels 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