Attention: Our dual-speed fan control harness relay kit is designed for 34-inch radiators. If there are issues with wiring pins or connections, please refer to Main Image 8. If you encounter installation issues with harness, please refer to Main Image 7
Fitment: Compatible with Chevrolet Silverado 1500/2500 Classic, Avalanche 1500/2500, Suburban 1500/2500; GMC Sierra 1500/2500/3500 Classic, Yukon; Cadillac Escalade EXT/ESV. Please refer to the pictures for detailed models before purchasing
Replacement Part Number: 674-00923. Precisely manufactured to OE factory standards for durability and reliability. Each wire and terminal is rigorously tested before shipment to guarantee lasting performance, safety, and dependable operation
Enhanced Efficiency: Designed to support both low and high-speed operation of dual electric fans, this harness kit ensures optimal temperature regulation under all driving conditions. Ideal for upgraded or retrofitted cooling systems
Durable & Heat-Resistant Harness: Made with automotive-grade wiring and weatherproof components for reliable performance in harsh engine bays. Complete stand-alone design with relays, fuses, and connectors for simple fan wiring installation
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674-00923 Dual Speed Electric Fan Control Wiring Harness Kit with Relay
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First Listed on Newegg
August 06, 2026
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Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.