Your vehicle’s electrical and accessory systems depend on a properly functioning alternator and belt drive system. The alternator is responsible for keeping your battery charged and powering electrical components like lights, radio, climate control, and onboard computers. Over time, alternators can fail due to worn bearings, damaged diodes, or worn brushes, leaving your vehicle running solely on battery power until it dies. Belts — such as serpentine and accessory belts — transfer power from the crankshaft to the alternator, power steering pump, A/C compressor, and other components. A worn or frayed belt can slip or break, causing sudden loss of power steering or air conditioning, and potentially overheating your engine. At Pit Stop Pros, we provide on-site testing, diagnosis, and replacement of alternators, belts, belt tensioners, and pulleys. We use high-quality OEM-grade components and ensure proper belt tension to prevent squealing, slippage, and premature wear, so you can drive away confident your charging system and belt-driven accessories will operate reliably.