Hummer H3 Alternator

Your car gets its electricity from the alternator - its own generator. It changes mechanical energy into electrical energy. While the battery in your car does provide electricity, other electrical items in your vehicle rely on the alternator to provide a reliable stream of power. Essentially, an alternator consists of a mechanical combination of wheels, brushes pulley and wires attached ultimately to a battery and crankshaft.

An alternator translates motion into an electrical current when your vehicle is on the move. Your radio, fans, defogger, windshield wipers, air conditioner, and headlights run on this electric power.

Inspect your alternator regularly. The battery of your car will still provide electricity in the case of an alternator malfunction, until the battery is drained. Whether or not the alternator on a Hummer H3 will be easy to reach will depend on the model year. Fixing the alternator requires specific tools.

Purchase parts 24 hours a day, then have them conveniently shipped to you. Select the alternator below which matches your Hummer H3 model. You will be able to find the exact part you need, with millions of car parts available for you to purchase. Sit and spend time browsing through our listings to get parts at the lowest prices without leaving the comforts of home.