Dual Speed Electric Fan Control Wiring Harness Kit With Relay For GM Trucks And SUVs 1999 To 2007 Retrofit Stand Alone Fan Wire Fits 34 Inch Radiator Cores Silverado Suburban Avalanche Escalade GMC Sierra Yukon
UPC:
✔️ Fits 34-inch radiators on GM Silverado/Suburban/Yukon with dual-speed
This dual speed fan control wiring harness is a dedicated stand-alone kit designed for 1999-2007 GM trucks and SUVs. It supports both low and high-speed operation for upgraded cooling with 34-inch radiator cores, including Silverado 1500/2500 Classic, Avalanche 1500/2500, Suburban 1500/2500, GMC Sierra 1500/2500/3500 Classic, Yukon, and Cadillac Escalade EXT/ESV. The kit uses OE-style parts (674-00923) and comes with relays, fuses, and connectors for a straightforward, reliable installation.
✅ Replacement part number 674-00923
✅ 34-inch radiator compatibility (864 mm wide)
✅ Stand-alone harness with relays, fuses, and connectors
✅ Supports low and high-speed operation of dual fans
✅ Automotive-grade wiring and weatherproof components for harsh engine bays
💡 What is a handy use for a dual-speed fan control harness in GM cooling systems?
A handy upgrade for keeping engine temps steady in Chevy/GMC trucks and SUVs during hot days, towing, or heavy loads.
- Improves fan coordination for reliable cooling - Simplifies retrofit with a complete stand-alone harness - Works with 34-inch radiator cores found on listed GM models - Helps maintain optimal engine temperature across driving conditions