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Select A VehicleGet Parts That Fit
Filter your results by entering your Year, Make, Model to ensure you find the parts that fit your vehicle.
The ballast resistor lets the ignition system run at a lower voltage until the engine is able to start, then regulates the voltage going to the ignition system to prevent wear and tear on the system. A jumper wire is usually attached to the ballast resistor to provide enough voltage to start the engine. If your vehicle starts then stalls, or won't start at all, you may want to check your engine's ballast resistor to make sure it is working as it should. For all your ballast resistor and engine part needs, browse our selection at O'Reilly Auto Parts.