A more rugged internal circuit board designed to resist heat, corrosion, and vibration. Built and tested according to factory specifications with strict quality control standards. Type: Air Blend Door Actuator Manufacturer Part Number: 604-048 Other Numbers: 604-048, 604048, 36001716, 4647039 Fits the Following Models: For Jeep Grand Cherokee 19931998 All Engine Main Auto Temperature Control For Jeep Grand Cherokee 1997 All Engine Main Exc Auto Temperature Control For Jeep Grand Wagoneer 1993 All Engine Main Auto Temperature Control Color: Black Material: Plastic Package Contents: 1 x Air Blend Door Actuator Note: Package includes only the items listed. Other products are not included. Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement may vary by +/- 13 cm.