This AD244 alternator is a modern alternator design that is more efficient than previous ones. A larger stator and housing with more openings, a more open rectifier layout and larger heat sink all help to aid cooling and produce high current at idle speed. Around 100 amps at idle is the norm and usually 130-145 amps maximum output in stock form. Previous designs were rated at around 100 amps maximum and not nearly that much at idle. This is almost a plug n play upgrade for the CS130D in older vehicles. It can also be retrofitted to other applications with a little more work or an adapter harness, etc. The photos show an AD244 in my 96 K1500 (Silverado if you will) that originally had a CS130D. It has a longer belt (for models equipped with the high output CS144 alternator) and minor tweaks to the heater pipe for clearance.Read full review
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