New Alternator Fits for High Output 105Amp 3-Wire 10SI Self-exciting SBC BBC GM ADR0151 ADR0335 7127-SE105 Self-exciting Alternator 400-12340 20-102-7

Worked great at first then problems started. High pitched noise on and off. Voltage was 14.2 when installed and now is 12.2 or less. Cannot keep up if lites or air is on. Only used for a few weeks

Installed just like original except I was able to connect with one wire instead of three. It keeps up with all added accessories.

6 months after purchasing and very few miles put on it and the alternator is not working properly and going bad. Took it to a mechanic and they said it was junk.

Used this for an old Clark forklift. No complaints, and was happy it came with the small rubber plug for the two spade terminals. But I have it setup simply as a one wire alternator. A quick little rev of the engine and the alternator wakes up and does its job, charging at approx 14.5V. Would buy again, and will update review if it fails; I’m good about that. I was hoping to switch my dual belt pulley from the old alternator to the new one, but the new one has a shorter shaft that protrudes less from the body. No big deal, I just used the single belt pulley it came with and am using one belt instead of two. No complaints, no problems.

I don't have a way to measure if it really outputs all the way up to 105A. My battery does seem to be charged, so it seems to be at least good enough.It is much louder than my last alternator. A high pitch whirring/whining sound that competes with the engine and (mechanical) engine fan for who's loudest.

This item is the same size as most gm alternators, but output of 105 with one wire hook up(or a three wire if you prefer), makes installation a snap. If you prefer 3 wire be sure to install a diode in the wire feeding your gen lite to avoid the inability to shut the engine off. A very versatile alternator for the price.

Just finished my hot rod. Alternator works great. Easy to wire with warning light.

I had intermittent charging issues with the full 0 regulation stock alternator and it murdered a few batteries. No wiring change this one runs 14.9 volts at the poll and 14.2 at the battery after the external regulator. Insane quality to price ratio. 71 corvette.