E-Z-Go 21764G1 Resistor Assembly For Electric Vehicles [Lawn & Patio] Solenoid resistors protect your solenoid by regulating current for preventative overload or damage. Our parts meet or exceed OEM quality standards. Will not fit DCS models. Terminal ends are loose and must be crimped on. Fits the Following Cart(s): EZGO (1989+) TXT, Medalist, and RXV models without the DCS (Drive Control System) controllers.