<p>Includes: - Ignition Lock Cylinder</p> <p>Fits Models: - GMC Sierra 1500</p> <p>Model Years: - 1999–2000</p> <p>Submodels: - Common trims include SL, SLE, SLT; body style is Crew Cab, Extended Cab, Regular Cab; chassis code is GMT800</p> <p>Engine Options: - Common engine sizes include 4.3L V6 (L35), 4.8L V8 (L33), 5.3L V8 (LM7), 6.0L V8 (LQ4)</p> <p>Description: This ignition lock cylinder is designed specifically for the GMC Sierra 1500 from the model years 1999 to 2000. It ensures proper ignition functionality and is a direct replacement for your original part.</p> <p>Features: - Direct fit for 1999–2000 GMC Sierra 1500 - High-quality construction for durability - Easy installation with no modifications required - Restores ignition system functionality - Compatible with multiple engine options</p> <p>Part Numbers: - OLX-ACD15815961-CL360A62</p>