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Automotive

ACDelco Gold 6K423 Standard V-Ribbed Serpentine Belt

Automotive4.7· 53 Amazon ratings

Bias-adjusted across 53 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Automotive.

77.4%
Percentile · Global
81.6%
Percentile · Cohort
Automotive
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ACDelco Gold 6K423 Standard V-Ribbed Serpentine Belt

How the score was built

Amazon ratings
53

used for the Bayesian percentile

Raw star average
4.7 / 5

unadjusted Amazon mean

Bayesian avg
4.43

raw rating shrunk to the category prior

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Same category · Automotive

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