GM AD244 Style High Output 220 Amp Alternator
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$286.70at Top Street PerformanceChecked Nov 10
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A high-output 220-amp alternator in the GM AD244 case style, built for 1999–2006 GM trucks and LS accessory drives. It roughly doubles the output of many factory units, so it can carry electric fans, fuel pumps, winches, audio and lighting without voltage sag. It suits LS-swapped trucks and work vehicles with heavy electrical loads. Compared with stock AD244 alternators, it offers far more capacity, but cheap high-output units are known for heat and durability issues, so build quality matters.
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This 220 amp alternator uses the GM AD244 case design found on many 1999-2006 GM truck applications. It is made for compatible LS truck accessory drive systems and factory-style AD244 mounting brackets. The 220 amp output suits vehicles with added electrical demands, such as electric cooling fans, electric fuel pumps, aftermarket ignition, lighting, audio equipment and winches.
The alternator is internally regulated and uses the factory-style 4-pin connector. It is not a one-wire alternator and is meant to work with compatible factory-style charging controls and wiring. It has a 6-groove serpentine pulley and an external fan.
Check truck versus car accessory spacing before ordering. Also check the mounting brackets and pulley alignment before installation.
