Serpentine belt replacement cost
A serpentine belt replacement typically costs $100–$250 at a US independent shop for a mainstream vehicle — but your exact cost depends on your year, make, model, and engine.
- Parts
- $25–$90
- Labor
- $75–$160
- Total
- $100–$250
A cracked or squealing serpentine belt drives the alternator, water pump, and AC — if it snaps you lose all of them. It is a cheap, routine replacement.
What affects the price
- Belt tensioner condition
- Engine access
- Belt quality
DIY vs. shop
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Ranges like this are a starting point. Tell the AI Mechanic your year, make, model, and the symptom or OBD2 code — it estimates the cost for your exact vehicle, flags the likely cheap fix before the expensive one, and tells you when a shop is genuinely the right call.
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