1989-1991 Chevrolet R3500 6.2L V8. 1989-1991 Chevrolet R3500 5.7L V8. 1989-1991 Chevrolet R3500 7.4L V8. Notes: HVAC Blower Motor -- Bolt On Impellar; with Blower Wheel. The blower motor assembly is designed to push/pull air across the A/C evaporator.
