12V 250A starter relay compatible with BADLAND winches: 2000lb model #68146, 3000lb model #68145, 5000lb model #68144.Compatible with KEEPER winches: KT2500, KT3000, KT2500C, KT3000C, KT2000, KT4000C.Terminal markings: “B” for connection, “M” for motor connection—do not reverse connections.Constructed with copper terminals, EPDM rubber insulation, and metal housing.Designed to restore cranking function by reducing current load on the starter switch.