Control Harness Kit for Radiator Fan - DC12V 40A 1-on-1 Control Harness with Manual Override Switch, Allows Forced Fan Activation for Engine Cooling

This fan control harness is a set of manual switch components that allow you to directly control the vehicle's cooling fan. The wire length is 78 inches. Includes a DC12V 40A power relay and 1-on-1 control function through a switch. Built with durable wiring. Allows speed control of your existing fan for engine cooling under extreme high temperature conditions.

• DC12V 40A Rated: Engineered with a DC12V 40A relay and circuit. Designed for control of high-power cooling fans.
• 1-To-1 Direct Control: This is a single-channel control harness, meaning one dash switch directly and solely commands one load device (such as your primary radiator fan) for straightforward and reliable operation
• Control Harness, Not A Cooler: This is a control wire harness and switch kit. It does not include a fan or radiator. It is designed to give you manual override control over your existing cooling fan system
• Easy to install and connect wiring harness: This kit has clear markings on the wiring harness and is carefully designed to achieve a clean, simple, and durable installation effect
• Equipped with a switch, the total wire length is about 78 inches, providing reliable performance in harsh weather conditions and harsh environments.
• Manual fan switch: allows you to force existing cooling fans to reach speed control under extreme high temperature conditions to prevent engine overheating.