<div data-store-description="v1"> <p>Wiring Harness for Dual Speed Electric Fan, Chevy Silverado/Sierra 1999-2007. Supplied product details follow.</p> <h3>Specifications and fitment</h3> </div> <p>Includes: - Dual Speed Electric Fan Wiring Harness</p> <p>Fits Models: - Chevrolet Silverado - GMC Sierra</p> <p>Model Years: - 1999–2007</p> <p>Submodels: - Common trims include WT (Work Truck), LS, LT, LTZ, and Denali - Chassis codes: GMT800 (Silverado), GMT900 (Sierra) - Body styles: Regular Cab, Extended Cab, Crew Cab</p> <p>Engine Options: - Common engine sizes include 4.3L V6, 4.8L V8, 5.3L V8, 6.0L V8, and 8.1L V8 - Engine codes: L35, L59, LM7, LQ4, LQ9</p> <p>Description: This Dual Speed Electric Fan Wiring Harness is designed specifically for 1999–2007 Chevrolet Silverado and GMC Sierra models. It provides a reliable connection for electric fans, ensuring optimal cooling performance during operation. The harness is built to withstand high temperatures and is easy to install, making it a perfect upgrade for your vehicle's cooling system.</p> <p>Features: - Compatible with dual speed electric fans - High-temperature resistant materials - Easy installation with factory-style connectors - Enhances engine cooling eff</p>