<p>Includes: - Ignition Lock Cylinder</p> <p>Fits Models: - GMC Sierra 1500 HD - GMC Sierra 3500 HD</p> <p>Model Years: - 2001–2007</p> <p>Submodels: - Common trims include SL, SLE, SLT, Denali - Chassis codes: GMT800, GMT900 - Body styles: Crew Cab, Extended Cab, Regular Cab</p> <p>Engine Options: - Common engine sizes include 4.8L V8, 5.3L V8, 6.0L V8, 6.6L Duramax Diesel - Engine codes: LQ4, LQ9, LB7, LLY</p> <p>Description: This ignition lock cylinder is designed for GMC Sierra 1500 HD and 3500 HD models from 2001 to 2007. It ensures reliable ignition functionality and is a direct replacement for worn or damaged components.</p> <p>Features: - Direct fit for specified GMC models - Durable construction for long-lasting performance - Easy installation with no modifications required - Restores proper ignition operation - Compatible with various trims and engine options</p> <p>Part Numbers: - CLX-M0-USA-REPO503901-CL360A91</p>