Alternator / Serpentine Belt Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront

GET A QUOTE Backed by 12-month, 12,000-mile guarantee
Red-stars EXCELLENT RATING ON

How much does Alternator / Serpentine Belt Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2005 Jeep Liberty $116 $45.58 $70.00 24% $153.08
2007 Mercury Milan $96 $26.38 $70.00 28% $133.88
2011 GMC Savana 3500 $89 $19.18 $70.00 29% $126.68
2012 Volkswagen Routan $94 $23.98 $70.00 28% $131.48
2007 Chevrolet Silverado 3500 Classic $186 $116.34 $70.00 16% $223.84
2004 BMW 330i $158 $59.96 $98.00 24% $210.46
2008 BMW 535i $192 $38.38 $154.00 30% $274.88
2007 Mercedes-Benz G500 $126 $35.34 $91.00 27% $175.09
2012 BMW M3 $232 $85.14 $147.00 25% $310.89
GET A QUOTE FOR YOUR CAR

Alternator / Serpentine Belt Replacement Service

What is the Alternator Belt all about?

The alternator is a generator that converts mechanical energy into electrical energy. It uses the revolving motion of a magnetic field around a stationary armature creating electricity which is then stored in the car’s battery and operate electrical functions. The revolutions needed to create the electricity come from the engine’s crankshaft which is connected via a rubber belt. This alternator belt is either a v-belt or a flat ribbed belt more commonly known as a serpentine belt. The alternator belt may solely operate the alternator or it may also drive other items such as the water pump, air conditioning compressor, and the power steering pump. When the belt is loose, frayed or broken, the alternator isn’t able to generate electricity to charge the car battery causing poor operation of electrically powered accessories.

Keep in mind:

  • The alternator belt is made of rubber that degrades with age.
  • The alternator belt may drive more components than just the alternator. The power steering pump, water pump, and air conditioning compressor may use the same belt to operate.

How it's done:

  • The belt tensioner is loosened
  • The defective belt is removed
  • The new belt is installed and tensioner is tightened on to belt
  • The engine is started and belt operation is checked
  • The vehicle is road tested for proper operation

Our recommendation:

Your mechanic will check the condition of the alternator belt every time the oil is changed. If they notice the belt appears frayed, cracked, or is missing pieces, you should have the belt replaced.

What common symptoms indicate you may need to replace the Alternator Belt?

  • Battery light comes on
  • Interior lights and headlights flicker and dim
  • Engine stalls while driving and will not turn over to restart
  • Flapping sound of a frayed belt might be heard under the hood

How important is this service?

If your alternator belt breaks while you are driving, you may lose electrical power to important systems inside your vehicle or the engine may die. You could be left stranded or in a dangerous situation. Replace the alternator belt as soon as you notice unusual wear.

Fast and easy Alternator / Serpentine Belt Replacement service at your home or office.

GET A QUOTE FOR YOUR CAR
Backed by 12-month, 12,000-mile guarantee

Recent Alternator / Serpentine Belt Replacement reviews

Excellent Rating


YourMechanic Alternator / Serpentine Belt Replacement Service

Average Rating

4.5/5

Number of Reviews

1,905

Rating Summary
1,815
53
13
7
17
1,815
53
13
7
17

Robert

27 years of experience
435 reviews
Robert
27 years of experience
Robert did brakes on my truck, and a water pump on my Mercedes. He worked clean and efficiantly. Everything seems to work fine. I would definitely recommend him to friends! Thanks, Bob
2004 MERCEDES-BENZ S430 - SERPENTINE/DRIVE BELT - MILPITAS, CALIFORNIA

Robert

27 years of experience
435 reviews
Robert
27 years of experience
Robert was on time, quickly diagnosed and fixed the problem and was very knowledgeable. This service is awesome!
2001 BMW 330CI - SERPENTINE/DRIVE BELT - SAN JOSE, CALIFORNIA

Grzegorz

37 years of experience
388 reviews
Grzegorz
37 years of experience
Grzegorz called a couple hours before the appointment time saying he was in the area and if he could come by earlier. That worked out very well.
2005 NISSAN XTERRA - SERPENTINE/DRIVE BELT - SAUSALITO, CALIFORNIA

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com