S4 Alternator

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02-16-09, 07:37 PM

Dilandau

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S4 Alternator

Just in case anyone wanted to know, if you turn your stock alternator in for a factory remanufactured, keep the pulley. I just got my new pulley and it's at least a third smaller than the one I got with the alternator. I'll post comparison pics tomorrow if anyone is interested.

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02-16-09, 07:58 PM

87 t-66

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are you sure you got an s4 alt in return?

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02-16-09, 08:20 PM

Dilandau

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Yes, quite sure. Seeing as it has the correct plug on the back, as well as the proper part number on it for the reman. P/N N320-18-300R-00.

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02-16-09, 08:52 PM

Icemark

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smaller pulley will just spin the alt faster, producing more juice earlier.

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02-16-09, 08:58 PM

Dilandau

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I had been wondering since I put it in why I was getting such low power at night when I am drawing a larger load. Turns out the pulley was the problem. Thirteen volts at ~3000 Rpms is not where I want to be. Just thought I would share a possible solution.

Also something that could have saved me 12 bucks had I known/ actually paid attention.

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