Dorman 300-117 Power Steering Pump Pulley. Power Steering Pump Pulley. This power steering pump pulley is designed to match the fit and function of the original pulley on specified applications. Fits what vehicles: 1990 Chevrolet Astro, 1990-1993 Chevrolet LLV, 1990-1993 Chevrolet S10, 1990 GMC S15, 1990 GMC Safari, 1991-1993 GMC Sonoma.
