A more rugged internal circuit board which resists heat, corrosion, and vibration! According to the 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 Jeep Grand Cherokee 1993-1998 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 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.