GMC C3500 Alternators

Your GMC C3500 pickup has a factory alternator that serves as a crucial part of its charging system. It converts the mechanical energy that's produced by your engine into the electricity upon which most of the truck's systems depend.

How Your Alternator Works

The alternator is a generator that both recharges the battery and distributes electricity to various accessories and systems. It's usually mounted on the front of the engine, with a belt wrapping around it and connecting it to the engine's crankshaft. The engine pistons' up-and-down movement turns the crankshaft, converting vertical movement into circular motion. That twirls a rotor. Magnetic coils inside the rotor spin due to the turning motion, generating an electric field. A rectifier captures that electric field as AC power and converts it into DC power, which is fed to the battery and components such as your power windows, radio, and wipers.

How to Spot Alternator Issues

Unfortunately, even the best alternator can eventually fail. Signs of this include:

• Dim or flickering headlights
• The radio begins to act up
• Your power windows no longer respond to your command
• You hear a whining noise coming from your engine
• Your battery repeatedly dies

Buy Genuine GM Alternators Online

If you notice any of these signs, check your alternator. One easy way? Test the battery's voltage with the engine off. If it reads lower than 12.5 volts, give it a charge and then re-test it. If your second reading is still low, the alternator's likely the problem. Authentic GM alternators are designed to work with your pickup, delivering the guaranteed fit and performance you need. Find everything you need for the job right here in our online auto parts inventory. Buy now and we'll ship your order right to your front door!