POWERMASTER
Alternator GM 12SI 150 Amp 1-V Pulley Black
SKU: PWM57293
$233.99
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Alternator - GM Original Look - 12SI - 150 amps - 12V - 1-Wire / 3-Wire - Single V-Belt Pulley - Aluminum Case - Black Powder Coat - GM - Each
What this part is for
POWERMASTER Alternator GM 12SI 150 Amp 1-V Pulley Black is a performance part builders add when the stock piece won’t do the job — whether that’s durability, flow, adjustability, or packaging in a custom build. Ask Grok with your year, make, model, and engine, or Call Us — confirm fitment once before you buy. Real people at Cunningham Customs handle the order.
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Comments & builder notes
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