Chase Bays Dual Fan Relay Wiring Harness With 180°F Thermoswitch

The Chase Bays Dual Fan Relay Wiring Kit is a comprehensive, high-quality solution designed to address common fan wiring issues in vehicles converting from mechanical to powerful electric fans. Insufficient wiring and improper relay setups often result in underperforming fans and rising engine temperatures. This kit eliminates those problems with a professionally designed, easy-to-install system that not only performs flawlessly but also looks sleek and organized. Solving Common Fan Wiring Issues Many chassis originally equipped with mechanical fans are upgraded to electric fans without sufficient attention to proper wiring. Often, factory A/C relays with smaller gauge wiring are tapped into, or a single relay powers two fans, leading to insufficient power delivery. This results in underpowered fans and rising temperature gauges, creating a significant issue for high-performance or daily-driven vehicles. The Chase Bays Dual Fan Relay Wiring Kit solves this by providing a dedicated system that ensures full power delivery to each fan, maximizing cooling efficiency. High-Quality Components and Weatherproof Design Unlike other kits that come with basic crimped relays, connectors, and zip-tied wires, the Chase Bays kit stands out with its premium construction. The kit includes a small, weatherproof relay and fuse box, fireproof sleeving for enhanced durability, and labeled yellow leads for easy identification. The included mounting bracket simplifies installation, and the TXL thin-jacketed wiring ensures flexibility and resistance to heat and abrasion. Effortless Installation Installation is made easy with clearly labeled wiring. The leads labeled "thermosw" connect to the included 1/8 NPT thermo-switch, which should be installed on the post-thermostat lower side of the radiator. All Chase Bays Tucked Radiators from 2018 onward feature dual 1/8 NPT ports for easy installation. The "fans" leads connect to the fans, while the "GND" lead is grounded to a clean, non-painted steel or stainless steel bolt. The "battery" wire serves as the main power supply and can be connected directly to the battery, alternator, or starter for continuous fan operation until the coolant temperature drops below 180º F, even after the car is turned off. For those preferring fan operation only while the vehicle is running, the battery lead can be connected to a switched 12V source. Mil-Spec Wiring and Premium Connectors This kit uses 14-gauge wire for the fan and relay power wires, all crimped with a certified Mil-Spec pneumatic crimper for the best possible connection. Nickel-plated terminals ensure corrosion resistance and optimal conductivity, while Deutsch connectors for the fans guarantee secure, weatherproof connections. Versatile for Any Setup While the Dual Fan Relay Wiring Kit is optimized for Chase Bays Tucked Radiators, it can be used in virtually any setup that requires reliable fan control. For non-Chase Bays radiators, an 1/8 NPT female aluminum weld-on bung may be needed to mount the thermo-switch. This versatile kit ensures your fans operate at peak performance, no matter the application. Important Installation Tips Always use liquid Teflon thread sealant to prevent leaks and ensure a proper seal when installing the thermo-switch. Pipe tape is not recommended, as it can insulate the switch, affecting temperature readings, and may break off into the cooling system. The Chase Bays Dual Fan Relay Wiring Kit is a must-have for anyone serious about improving the performance and reliability of their vehicle's cooling system. Built to handle the high power demands of modern electric fans, it ensures full fan power and stable temperatures, all with a clean, professional install.