Infiniti M45 Drive Belt Tensioner Replacement at your home or office.

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Drive Belt Tensioner Replacement Estimate for Infiniti M45

Infiniti M45 Drive Belt Tensioner Replacement costs $262 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$262 to $272
Labor: $70 -$80
Parts: $192
Average Dealer price
$477
Average Shop price
$323
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
2004 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.36 - $882.39
2007 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.48 - $882.60
2008 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.40 - $882.46
2003 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.44 - $882.52
2010 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.38 - $882.42
2006 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.35 - $882.37
2009 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.51 - $882.65
Show example Infiniti M45 Drive Belt Tensioner Replacement prices

Drive Belt Tensioner Replacement Service & Cost

What is the Drive Belt Tensioner all about?

A Drive Belt Tensioner is a pulley mounted to either a spring mechanism or to an adjustable pivot point that is used to keep constant tension on your serpentine belt. That is the big long belt in the front of your engine.

The tensioner rides on the outside surface of the belt to put pressure, or tension, on the belt and against the pulleys that drive things like the alternator, power steering, air conditioner, etc.

Keep in mind:

Tensioners usually come with pulleys; they are normally replaced together. Also, when replacing a tensioner, the drive belt usually must be removed. A mechanic may recommend replacing the belt as well.

How it's done:

  • Check for any noise in the engine (usually a squeaky or grinding noise).
  • Remove the drive belt(s) (in most cases).
  • Inspect drive belt pulleys.
  • Check the drive belt tensioner.
  • Remove and replace the tensioner if faulty.
  • Start car to see if noise is gone.

Our recommendation:

Your drive belt tensioner should always be inspected when your drive belt is serviced. During routine maintenance and inspection, your drive belt system should be reviewed to make sure that all the components are in working order. The drive belt tensioner will usually last longer than the drive belts, so as long as your tensioner is inspected or replaced when your drive belts are, your belt system should remain in good shape.

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

Unusual noise (squeaky or grinding sound) every time you start the engine.

How important is this service?

The air conditioning, power steering, and alternator in your vehicle are given power through the drive belt. The belt is attached to both the crankshaft and these systems, and transfers power from the engine to drive each of these components. The drive belt tensioner is responsible for keeping the tension in the drive belt, which allows it to continue moving and transferring power. When the drive belt tensioner fails, the tension in the drive belt will begin to diminish, and the vehicle will not operate as well.

Fast and easy Drive Belt Tensioner Replacement service at your home or office.

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Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2004 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.36 - $882.39
2007 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.48 - $882.60
2008 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.40 - $882.46
2003 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.44 - $882.52
2010 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.38 - $882.42
2006 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.35 - $882.37
2009 Infiniti M45V8-4.5LService typeDrive Belt Tensioner ReplacementYourMechanic Price$453.96Shop/Dealer Price$575.51 - $882.65
Show example Infiniti M45 Drive Belt Tensioner Replacement prices

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