To ensure reliability, purchase GM part # 19151871 Reman Alternator (Delco 12Si 66 Amps). It is sometimes referred to as GM Alternator. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Chevrolet Astro, G20, P30 models. It fits GMC G1500, G3500, Safari.
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