Part Number of Winch Solenoid Relay & Winch Rocker Thumb Switch: 63070, 62135, 74900, 2875714, 70715Fitment For KFI: ST17, S2000, A2500, A3000, U4500, U4500w, SE25, SE35, SE45For Warn: A2000, A2500, U2500, 1.5ci, 2.5ci, 2.5ce, 3.0ci, 3.0ce, 3.0s | RT15, RT25, RT30, XT15, XT25, XT30For Ramsey : ATV2500, ATV3000For Superwinch : Terra25, Terra35, Terra 45, LT2000, LT2500, LT3000For Mile Marker : PE2.5, PE 3.5, VMX2.5, PE2000, PE3000, PE2500, PE3500For Cycle country : Work Power 1500 and 2500, Powermax 2500 3500For Badland : 2000lb #68146, 3000lb #68145, 5000lb #68144For Keeper corp. trakker: KT2500, KT3000, KT2500C, KT3000C, KT4000, KT4000C , KT2000For Smittybilt : XRC 2.0, XRC 3.0For Xgear: X3000, X4000For Venom: 2000, 2500, 3000, 3500, 4000, 4500, 5000 (Hardcore Series)Specification:Material: MetalDimension: 11x5.5x5.5cm / 4.33"x2.17"x2.17"(L*W*H)Rocker Switch: 41x50mm / 1.61"x1.97"Packing Include:1 x 12V Winch Solenoid Relay Contactor1 x Winch Contactor Rocker Thumb Switch1 Set of Mounting Brackets6 x Insulated Protecting Waterproof CapsFunction & Cable Diagram of Solenoid RelayBlue point connect to Motor Winch Positive, Yellow point connect to Motor Winch Negative, Red point connect to Battery Positive, Black point connect to Battery NegativeGreen wire connect to Switch Green, Black wire connect to Switch Black(controls in and out on a winch).Protects ATV's electrical system, use to switches the power distribution of your winch.M8 copper for terminal, built in silver contactor, durable plastic case and powder coated black surface.There have a distance between inner accessory with Static Iron Core, it is normal phenomenon if there have sound when shaking.