Serpentine/Drive Belt Replacement at your home or office.

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$84.84 - $274.50

Price range for all vehicles


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Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

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How much does Serpentine/Drive 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
2004 Kia Magentis $124 $54.02 $70.00 23% $161.52
2009 Mazda Tribute $111 $40.63 $70.00 25% $148.13
2010 Ford Explorer Sport Trac $126 $55.85 $70.00 22% $163.35
2014 Mini Cooper Countryman $196 $34.68 $161.00 30% $281.93
2011 Mercedes-Benz C300 $126 $56.19 $70.00 22% $163.69
2003 Ford Mustang $116 $46.38 $70.00 24% $153.88

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Serpentine/Drive Belt Replacement Service

What is a serpentine belt and how does it work?

A serpentine belt is a relatively long, flat, multi-ribbed belt that is driven by the engine’s crankshaft pulley. The belt drives many, and often all, of the engine accessories such as the alternator, air conditioning compressor, power steering pump, water pump, and air pump. The serpentine belt is tensioned by a hydraulic or spring-loaded automatic tensioner. Some older cars use a serpentine belt to drive most accessories but will also have a shorter v-style belt to drive, for example, the power steering pump.

Belts

When to consider replacing the serpentine belt:

  • Regularly scheduled maintenance. Typically, belt manufacturers recommend belt replacement at 90,000 miles. However, the belt must be inspected for wear or damage at regular intervals prior to this high mileage.
  • Squealing noise, belt slippage, visible belt damage. Should the belt fail or wear out prematurely, you may hear noise or you may see visible signs of deterioration such as missing chunks of rubber, excessive cracking, or a shredded appearance on the edge of the belt.
  • Battery Light. A loose belt, perhaps caused by a defective tensioner, may not drive the alternator at adequate speed and thus the battery may discharge, causing the warning light to illuminate.
  • Engine overheating. Often, the serpentine belt drives the water pump. In those applications, if the belt breaks the engine will overheat in seconds to minutes. If the belt is inadequately tensioned, you may notice higher-than-normal engine operating temperature.

How do mechanics replace the serpentine belt?

  • Prior to removing the belt, the mechanic must run the engine to determine if the idler pulley and the belt tensioner are noise-free. Those rotating components have grease filled bearings and are subject to wear. In addition, the mechanic will ensure that all pulleys and accessories are turning in the same plane. These steps help make sure your new belt will operate trouble-free for its full-service life.
  • The belt’s routing path through the various components is noted. The belt tensioner is released, usually with a wrench or lever, to release the tension from the belt. With the tension off, the belt slides off the pulleys.
  • All rotating components — that is the alternator, air conditioner compressor, etc. — are checked for smooth operation and no noise.
  • If everything checks out, the new belt is slipped over all of the pulleys while holding the tensioner away from the belt. Once the belt is centered on all pulleys, the tensioner is released and the installation is complete. The engine is run to ensure normal operation.

Is it safe to drive with a serpentine belt problem?

No. Should the belt have visible damage, you risk unexpected and sudden breakage that could potentially leave you stranded. Serpentine belt problems that result in the alternator not charging may cause the battery to discharge, which will result in loss of electrical power to the vehicle. Additionally, if a deteriorated belt breaks and that belt drives the water pump, the engine will overheat in a matter of seconds.

When replacing the serpentine belt keep in mind:

  • On many cars, the expected service life of a serpentine belt is around 90,000 miles. Should the belt fail well prior to that, a very careful inspection should be performed to check for out-of-alignment pulleys, a possibly out-of-position crankshaft harmonic balancer on which the drive pulley is mounted, binding pulleys, or a defective belt tensioner.
  • Attention should always be given to serpentine belt routing, since proper routing is critical to proper belt tension, and function of the driven components.
  • Sometimes it is difficult to distinguish serpentine belt related noise from other engine noises. In these cases, a mechanic will determine the origin of the noise by momentarily running the engine without the serpentine belt attached.

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Recent Serpentine/Drive Belt Replacement reviews

Excellent Rating


YourMechanic Serpentine/Drive Belt Replacement Service

Average Rating

4.5/5

Number of Reviews

2,900

Rating Summary
2,763
85
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12
26
2,763
85
14
12
26

Andrew

8 years of experience
394 reviews
Andrew
8 years of experience
Went well
2006 NISSAN 350Z - SERPENTINE/DRIVE BELT REPLACEMENT - SHAWNEE MISSION, KANSAS

James

27 years of experience
331 reviews
James
27 years of experience
Great experience. Given a lot of info regarding my vehicle and explained all future services needed.
2003 HONDA CR-V - SERPENTINE/DRIVE BELT - ORLANDO, FLORIDA

Shaun

13 years of experience
238 reviews
Shaun
13 years of experience
This is my first time using YourMechanic and the experience has been exceptional. Shaun was very professional, courteous, and helpful. He took care of everything and left very little for me to worry about. He examined my car's problems and checked with me first before proceeding with the repairs, and took a couple high quality pictures to show what the problematic parts look like. For someone like me who knows little about the inner workings of cars, these pictures have been very helpful and educational. The final amount I paid for Shaun's service was exactly the same in my quote, which was half of my dealer's quote! Would definitely come back for his service again.
2010 MAZDA 6 - SERPENTINE/DRIVE BELT - PALO ALTO, CALIFORNIA

Honorio

16 years of experience
658 reviews
Honorio
16 years of experience
Very professional and knowledgeable.
1983 CHEVROLET EL CAMINO - SERPENTINE/DRIVE BELT - SUNNYVALE, 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