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Serpentine Belt Replacement Cost

Replace the single belt that drives accessories like the alternator and water pump.

$100 – $250
Typical labor: 30 minutes to 1 hour
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Parts vs Labor
35% / 65%
Typical share of total cost
Labor Time
30 minutes to 1 hour
At a typical shop
Difficulty
Confident DIY
2 of 5
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Common Symptoms

Squealing from the engine bay, especially on startup
Visible cracks or fraying on the belt
Belt has reached 60,000 to 100,000 miles
Power steering or AC stops working

What It Is

One long belt that snakes around pulleys to drive your alternator, power steering pump, AC compressor, and sometimes water pump.

Why It Matters

If it breaks while driving, you lose power steering, AC, and battery charging all at once, and you'll be stranded within minutes.

How to Save Money on Serpentine Belt Replacement

Often Done Together

Shops commonly pair serpentine belt replacement with these jobs to save on overlapping labor:

Water Pump Replacement
$400 – $1,000
Alternator Replacement
$400 – $900

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Frequently Asked Questions

How long do serpentine belts last?
Most modern belts last 60,000 to 100,000 miles. Inspect for cracks every oil change after 50,000 miles.

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