A ballast resistor, also known as ballast tube, is an electrical resistor which is inserted into a circuit and differ the voltage supplied to the ignition coil over temperature variations. It tends to increase or decrease in resistance directly proportional to the current flowing through it, thus reducing damage to the ignition components. It also helps in providing better and easier engine startup. Auto Parts Network carries top quality parts to help your vehicle perform smoothly and efficiently.
Ballast Resistor 
