Alternator Replacement Cost

When your alternator dies, your battery drains fast and your car stops running. Here's what replacement costs.

Alternator replacement typically costs between $350 and $850 for most vehicles. A remanufactured alternator runs $150 to $400, while a new OEM unit can be $300 to $600 or more. Labor is usually one to two hours since the alternator is bolted to the engine and driven by the serpentine belt. Some vehicles with the alternator buried under other components take longer to access.

Before replacing the alternator, a mechanic should test it with a multimeter — a healthy alternator produces 13.5 to 14.5 volts with the engine running. If output is low, the alternator is failing. It's worth inspecting the serpentine belt and tensioner at the same time, since a worn belt can slip and mimic alternator problems. The battery should also be tested — a bad battery can overwork and burn out a new alternator.

Ez Mobile Mechanic handles alternator replacements at your Jacksonville location. Our labor rate is $150 for the first hour and $100 per hour after — straightforward pricing with no shop overhead. We're a mobile mechanic in Jacksonville and we come to wherever your car is, even if the battery is dead and it won't start. No tow truck needed. Call (904) 788-7272.

Get an Alternator Quote — (904) 788-7272

Frequently Asked Questions

How long does an alternator last?

Most alternators last 100,000 to 150,000 miles. Heat and electrical demand can shorten their lifespan.

Should I replace the battery when I replace the alternator?

Not necessarily, but have it tested. A deeply discharged battery may not recover fully and could overwork your new alternator.

Still not sure? Call a real mechanic.

(904) 788-7272 — $1/min