Mechanic holding a car alternator during the replacement process.
Mechanic holding a car alternator during the replacement process.

Hire a trusted alternator replacement service in San Antonio

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When you need an alternator replacement or repair service

  • Alternator replacement
  • NMRA alternator replacement
  • Honda Accord alternator replacement
  • Alternator repairs
  • … or anything else
It only takes 2 minutes. And it's free.
Up to 50% cheaper than franchise dealers
No job too big or small
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Same day or next day service at no extra cost

Recent Alternator Replacement tasks in San Antonio

I need my alternator put in in my 2013 Audi Q5 3.0 prestige V6

$185

San Antonio TX 78207 7216, USA

Apr 8th 2026

I need my alternator put in my 2013 Audi Q5 3.0 prestige V6

Replacing a Alternator

$200

San Antonio TX 78210, USA

Mar 22nd 2026

I need a mechanic to replace my 2009 nissan rouge alternator

Alternator, water pump and idle tentioner

$800

San Antonio TX 78250, USA

Mar 13th 2026

Water pump idler tentioner and alternator

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Suggested reads about Alternator Replacement

What does an alternator replacement service include?

The function of the alternator is simple: supply power to the battery and keep the electronics running. Otherwise, your vehicle will stop working. Your car will send a series of signals that will indicate a failing alternator, including a whirring noise coming from your engine and the smell of burning rubber. If you're starting to notice these warning signs, then you may need to get your alternator replaced immediately. 


Mobile Alternator Replacement
At Airtasker, you can find trusted alternator specialists and other mobile mechanics near you, offering you a convenient way of repairing your car's alternator or replacing it as needed. You don't have to risk fixing it yourself or stress over finding a car repair shop in your neighbourhood. Your mobile alternator replacement specialist will go where you are and replace your car's alternator in no time.

Disconnecting the Battery

Before the actual replacement, your Tasker will first disconnect your car battery for safety purposes. Skipping this step might trigger a live wire as they're removing or replacing the alternator, and can cause further damage as well. They will only remove the negative cable while the positive one remains attached.


Removing the old alternator
Most alternators are usually found on top of the engine. Some alternators, however, are positioned deeper in the engine and removal might take a little longer. After locating the faulty alternator, your Tasker will detach the serpentine belt or v-belt, as well as the bolts, wirings, and cables connected to the engine. After which, the old alternator will be safely removed.

Inspecting the new alternator
Your new alternator must have the same mounting holes and wire connectors as the old one. If you're hesitant or worried about buying the wrong alternator, you can always arrange for your Tasker to help you find the right one for your vehicle.

Positioning and Installing the Alternator
Your specialist will install the new alternator where the old one was placed. This process is simple—match the bolt holes, then put the battery, serpentine belt, cables, and wirings back to where they were previously. Your Tasker will then turn on your engine to check if the replacement alternator is working correctly. You can also request for a quick test drive to make sure that the process was successful.

Recent Alternator Replacement tasks in San Antonio

Alternator replacement

$250

San Antonio TX 78258, USA

Feb 26th 2026

Alternator replacement for Mercedes glc 300 2018

Alternator rebuilt

$150

San Antonio TX 78220, USA

Feb 2nd 2026

I will have the part pulled I can bring it to you..need it done same day if possible

Alternator replacement

$300

San Antonio TX 78240, USA

Jan 14th 2026

Car won't start battery dies out

Alternator replacement and battery

$200

San Antonio TX 78220, USA

Dec 18th 2025

Alternator has been removed from engine needing a alternator replacement and installed also a car r battery

Check my car, steering is stiff, check alternator,smoke muffler

$50

San Antonio, TX 78227, USA

May 28th 2023

Car was sitting for a long time because it broke down on a light battery light came on I changed the battery and alternator but alternator is used then recently smoke started to come out of mufflers even aftera oil change and there is little high pitched knocking also the steering got stiff and unstiff I don’t know how this works but if y’all can fix it we can negotiate a price if y’all tell me what i wrong that can really help - Due date: Flexible