more robust internal circuit board that resists heat, corrosion, and vibration! According to factory specifications, strict quality control standards to build and test! Type: Air Blend Door Actuator Manufacturer Part Number: 604-048 Number: 604-048,604048,36001716,4647039 Fits the following models: For Grand 1993-1998 All Engine Main Auto Temperature Control For Grand 1997 All Engine Main Auto Temperature Control For Grand Wagoneer 1993 All Engine Main Auto Temperature Control Color: Black Material: Plastic Package Contents: 1 x Door Actuator Air Blend Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.