Product Details: The Horton 12V NO-NC Solenoid Valve Kit keeps you Ready for the Road Ahead™, as a versatile solution for controlling engine cooling systems. It's 3-way universal solenoid valve design allows for customized and optimized performance, while the ability to be used as a normally open or normally closed valve provides additional flexibility in system design and control. With an 1/8" NPTF port size, this kit is compatible with a variety of engine cooling systems, making it easy to integrate and install. FleetPride is your First Click in Heavy Duty™.