Feature: Brand New Door Actuator (as listed per application) Temperature Blend Door - Controls the temperature of air in the interior of the vehicle Vent Mode - Responsible for directing air to different vents Air Inlet - Allows for fresh air to enter vehicle cabin Direct fit replacement Fitment Type: Direct Replacement Part Number: 16163982, 52402588, 52402598, 52402612, 89018365, 604-106 1572971, F04013, 52402612 K-3982-A, 89018365-5, 52402588-5604-106-5, F04013, GM0613018 Fit for: 2003-2006 Chevrolet Avalanche 1500, 2500 1999-2013 Chevrolet Silverado 1500, 1500 HD, 2500, 2500 HD .