Alternator Repair & Replacement in San Antonio, TX


Having car trouble? It could be your alternator. At Sergeant Clutch Certified Transmission & Engine Repair Shop in San Antonio, we specialize in fast, affordable alternator replacements for all cars, trucks, and SUVs. Whether you need a new alternator or a rebuilt unit, our experienced mechanics are ready to help.

Why Choose Sergeant Clutch?

  • Certified mechanics
  • Fast alternator installations
  • Affordable Alternator prices
  • New & rebuilt alternators
  • Alternator performance checks
  • Discounts for seniors, students, and military
  • Towing service

Signs You Might Have an Alternator Problem:

  • Dimming Headlights or Interior Lights
  • Dashboard Battery Light (or ALT/GEN Warning)
  • Dead or Weak Battery
  • Burning Rubber or Electrical Smell
  • Slow Power Windows or Malfunctioning Accessories

Your vehicle’s charging system—which includes the alternator, battery, ignition, starter, and computer system—should be checked at least once a year to ensure everything is functioning correctly.

What Does an Alternator Do? The alternator generates the electricity your vehicle needs while the engine is running. It charges the battery and powers your lights, radio, ignition system, and other electronics. A bad alternator can drain the battery quickly, leaving you stranded.

Common Alternator Issues:

  • Dim Lights – Alternator may not be generating enough power.
  • Battery Light On – Your system voltage is too low.
  • Dead Battery – Alternator may not be recharging it.
  • Burning Smell – Belt may be slipping or worn.
  • Starting Trouble – Alternator isn’t supporting the ignition system.

Don't ignore the warning signs—Sergeant Clutch offers a complete Alternator & Electrical System Check to pinpoint the issue and get you back on the road safely. Visit or Call Us Today! Sergeant Clutch Certified Transmission & Engine Repair Shop proudly serves San Antonio and surrounding areas. We understand that car repairs can be stressful and expensive—that’s why we go the extra mile to provide reliable, honest, and budget-friendly service. Let our team keep you safely and economically on the road. Mechanic on duty—walk-ins welcome!


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