The Heavy-Duty Electric Contactor protects your ATV's electrical system regulates the power direction of your winch based on input from your winch switches. This is a Replacement Winch Contactor that works with most winches brands. It requires the correct rocker switch with three wires to operate.Features:Protects your ATV & UTV's electrical system.Switches the power distribution of your winch.Works with most winches brands.Upgrades to most ATV/UTV winch system stock contactors.Requires a rocker switch with three wires.Requires 2 female spade terminals(one male and one female) for connection to switch (not included).This contactor is shipped as shown in the images. Do not anticipate additional components or wiring.Specification:Material: HardwareColor: BlackSize: as picture showPackage Weight: approx.516gPackage List:1 x Winch Contactor SolenoidPackage List1Protects your ATV & UTV's electrical system. 2Switches the power distribution of your winch. 3Requires a rocker switch with three wires. 4Requires 2 female spade terminals(one male and one female) for connection to switch (not included). 5This contactor is shipped as shown in the images. Do not anticipate additional components or wiring.