The EZGO Reliance HD Starter Generator serves two jobs on your cart. They are both in the name but deserve a description nonetheless. The starter side of things is responsible for getting the caddie running. It uses the battery's electrical power to spin over the engine's crankshaft to start producing a spark. As you push the pedal down further, the gas begins to flow into the motor, and everything cranks to life. This is where the generator takes over. As the name suggests, this generates the recharge voltage needed to keep your battery in good condition. If you had one and not the other, the whole system would be useless. Getting the cart started without charging the battery or vice versa shoots you in the foot.This golf cart starter generator is for the four-cycle EZGO models that range between 1991 and 2010. This unit includes a pulley, so there is no need to worry about a puller or keep up with a key. Give Buggies Unlimited a call today and get one coming.