Serpentine belt replacement runs $100-$250. Stretch-fit belts and engines with hard-to-reach tensioners cost more.
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DIY saves $50-$150; the route diagram is on the radiator shroud.
Typical total runs $68–$230 in Indiana, with parts around $25–$100 and labor $43–$130 at the IN average labor rate of $108/hr.
New belt; Tensioner inspection (replace if worn); Idler pulley check; Test for noise.
Belt length Tensioner condition Engine accessibility Always get more than one written quote.
DIY saves $50-$150; the route diagram is on the radiator shroud.
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