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Your alternator is an essential commercial truck part. It’s what charges your battery while your vehicle is running, which powers all of your truck’s electrical components. Because the alternator is in constant use when your vehicle is in motion, it will wear down over time. If you run into any of the following problems, it might be a sign that you need a new alternator.

Signs Your Alternator Is Failing

1. Dimming Lights 

If your dashboard lights seem dimmer than usual, or if your headlights flicker or dim when your engine is running, it might be time for a new alternator. Fading or flickering lights can be an indication that your alternator is having trouble supplying these electric components with enough electricity. 

2. Weak Battery

commercial Truck PartsWhile you may have to get a jump from time to time, if your battery fails often, it may be due to a bad alternator. Your truck’s battery is not designed to provide power long-term. Once it gets the vehicle started, it turns the job over to the alternator and relies on that part to stay charged. But when that commercial truck part is failing, it can’t adequately charge the battery. The battery is also called upon to provide the electrical power the alternator can’t, which drains it even faster. 

3. Warning Light

Many new model trucks have indicator lights that turn on when there’s a problem with the alternator. If you drive a truck with one of these lights on your dashboard, do not ignore it. Have your vehicle inspected as soon as you see it light up.


When you need a new alternator, turn to the technicians at George J. Hust Co. in Cincinnati, OH. In business for more than 80 years, this locally run company will provide you with all of the equipment you need, including commercial truck parts, agricultural equipment, landscaping equipment, and tractor parts implements. Check out their website to learn more about their products, and call (513) 681-3120 to speak with an experienced technician today.

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