Lexus RX450h Serpentine/Drive Belt Replacement at your home or office.

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Serpentine/Drive Belt Replacement Service

How much does a Serpentine/Drive Belt Replacement cost?

On average, the cost for a Lexus RX450h Serpentine/Drive Belt Replacement is $184 with $44 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$254.00Shop/Dealer Price$282.35 - $359.30
2010 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$234.45Shop/Dealer Price$259.77 - $328.53
2015 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$244.99Shop/Dealer Price$272.99 - $349.68
2016 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$244.99Shop/Dealer Price$272.99 - $349.68
2011 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$234.45Shop/Dealer Price$262.39 - $333.11
2013 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$234.45Shop/Dealer Price$260.06 - $329.03
2014 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$234.45Shop/Dealer Price$259.84 - $328.65
2012 Lexus RX450hV6-3.5L HybridService typeSerpentine/Drive Belt ReplacementEstimate$234.45Shop/Dealer Price$259.82 - $328.60
Show example Lexus RX450h Serpentine/Drive Belt Replacement prices

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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Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(39)

Rating Summary
38
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Carlo

15 years of experience
80 reviews
Carlo
15 years of experience
Lexus RX450h V6-3.5L Hybrid - Headlight Assembly Replacement (Passenger side) - Austin, Texas
Cant say enough great things about Carlo. Totally knowledgeable and respectful, fast and excellent work. Would use him every time. He is awesome.

Pierre

10 years of experience
366 reviews
Pierre
10 years of experience
Lexus RX450h V6-3.5L Hybrid - Brake Pads Replacement (Rear) - Wellesley Hills, Massachusetts
Great mechanic. Very knowledgeable and friendly and punctual. Will definitely book Pierre again in the future.

Peter

44 years of experience
1397 reviews
Peter
44 years of experience
Lexus RX450h V6-3.5L Hybrid - Brake System Flush - New River, Arizona
I would like to rate Peter 10 stars if I could! Here's a guy who's already hit 1000 5 star reviews! That's insane! When two other mechanics cancelled on me for a brake flush on my Lexus RX450h, YourMechanic sent their "best" tech out to do it. And they weren't kidding. Peter is one of the very best if not "the best" there is. Not only did he do the job quickly and correctly but he has an amazing bedside manner. He is one of the most intelligent people I've met in a long time and I had an amazing conversation with him. You can tell that he loves people as well as cars and it is more than just about the money for him. YourMechanic has a superstar here and they should have him training staff for how to treat clients as well as for his vast knowledge about cars, how the subsystems work, and how to troubleshoot and repair them. If YourMechanic continues to hire such top tier guys like Peter, car shops are going to be in trouble. Absolutely amazing service in every way. YourMechanic has brought humanity back to car care and has given amazing mechanics a more flexible schedule so it's a win-win. I really enjoy getting to know the person who is directly taking care of my vehicle. You just cannot compete with that. Thank you Peter. It was a sincere honor to meet you! And what a great accent! If you're lucky enough to book him, definitely do.

Demond

18 years of experience
13 reviews
Demond
18 years of experience
Lexus RX450h V6-3.5L Hybrid - Door Lock Actuator Replacement (Passenger Side Front, Rear Hatch/Trunk) - Arlington, Texas
Calm and calculated! I would hire Demond again if the opportunity arises.

Excellent Rating

(39)

Rating Summary
38
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1
38
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Number of Lexus RX450h services completed
429+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
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