Belt Tensioner Spring

Critical For Operation

Engine

Provides tension to keep the drive belt properly engaged with the engine pulleys.

The belt tensioner spring applies tension to the belt tensioner pulley, ensuring that the drive belt remains tight and properly aligned with the engine pulleys.

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Typical part cost

$10–$50🔒

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Typical labor cost

$50–$150🔒

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Typically lasts

80,000–150,000 mi

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Or about

5.0–10.0 years

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DIY difficulty

4/10

⚠️ Owners Often Notice

If the Belt Tensioner Spring is starting to fail, these are the signs owners most commonly report before it gets worse:

Belt slipping

Squealing noise

Poor belt tension

Belt vibration

Electrical failure

Overheating