<p>Includes: - Combination Switch</p> <p>Fits Models: - GMC Sierra 2500 HD</p> <p>Model Years: - 2003–2007</p> <p>Submodels: - Common trims include SLE, SLT, Denali; chassis code is GMT800; body style is Crew Cab, Extended Cab, Regular Cab</p> <p>Engine Options: - Common engine sizes include 6.0L V8 (LQ4), 6.6L Duramax Diesel (LB7, LLY), 8.1L V8 (L18)</p> <p>Description: This combination switch is designed for the GMC Sierra 2500 HD from 2003 to 2007, providing essential control for various electrical functions. It is a direct replacement for the original equipment, ensuring proper fit and function.</p> <p>Features: - Direct fit for GMC Sierra 2500 HD models - Controls headlights, turn signals, and wipers - Durable construction for long-lasting performance - Easy installation with no modifications required</p> <p>Part Numbers: - ALX-PAU-SI-CBS-1149-CLB18</p>