Duramax Diesels Forum Truck of the Week
  #16  
Old 03-05-2019, 02:03 PM
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THEFERMANATOR THEFERMANATOR is offline
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Quote:
Originally Posted by DAVe3283 View Post
I have a 300A modded AD244 on my GMC. I was thinking the L5P alternator might be cheaper than a modded AD244, hence my interest. A high quality AD244 in the 200+ amp range is $300+, and it looks like the L5P 220 amp is $250-ish.
The only problem I see is the 2 pin regulator. They're meant for ECM/PCM voltage control of the alternator. Without ECM/PCM control they're only supposed to output 13.8 volts is how I understand the 2 pin regulator. If it's a ad/dr series you can easily swap out the 2 pin regulator for a 4 pin, not sure about the alternator in the l5p though. And the ad244 at 145 amps is well documented at putting out well over its rating with many 145 amp models pushing 200 amps.
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