<div data-store-description="v1"> <p>Flasher Relay LED for GMC Sierra 2500 (2003-2004). Supplied product details follow.</p> <h3>Specifications and fitment</h3> </div> <p>Includes: - LED Flasher Relay</p> <p>Fits Models: - GMC Sierra 2500</p> <p>Model Years: - 2003–2004</p> <p>Submodels: - Common trims include SL, SLE, SLT, and Denali. Chassis codes are GMT800. Body style is Crew Cab, Extended Cab, and Regular Cab.</p> <p>Engine Options: - Common engine sizes include 6.0L V8 (LQ4), 8.1L V8 (L18), and 5.3L V8 (LM7).</p> <p>Description: This LED Flasher Relay is designed specifically for the GMC Sierra 2500 from 2003 to 2004. It replaces the factory relay to ensure proper operation of LED turn signals, preventing hyper-flashing and ensuring reliable performance.</p> <p>Features: - Direct replacement for factory relay - Compatible with LED turn signals - Prevents hyper-flashing - Easy installation - Durable construction for long-lasting use</p>