<p>Includes: - Body Control Module</p> <p>Fits Models: - GMC Sierra 1500 - GMC Sierra 3500</p> <p>Model Years: - 2003–2006</p> <p>Submodels: - Common trims include SL, SLE, SLT, Denali - Chassis codes: GMT800 - Body styles: Crew Cab, Extended Cab, Regular Cab</p> <p>Engine Options: - Common engine sizes include 4.3L V6, 4.8L V8, 5.3L V8, 6.0L V8, 8.1L V8 - Engine codes: L33, LM7, L59, LQ4, L18</p> <p>Description: This Body Control Module (BCM) is designed for GMC Sierra 1500 and 3500 models from 2003 to 2006. It plays a crucial role in managing various electrical systems within the vehicle, ensuring proper functionality of features such as lighting, power windows, and door locks.</p> <p>Features: - Direct replacement for OEM BCM - Ensures compatibility with electrical systems - Enhances vehicle reliability and performance - Easy installation for qualified technicians</p> <p>Part Numbers: - ALX-PAU-RB-502-008-CL360A55</p>