Alternator Denso or OEM Volkswagen

Get a factory Denso if you can but if not the O'Reillys alternator are good quality, we install a few a month and haven't had a comeback.

My alternator just went on my 2008 FJ TT, and I ended up getting a Denso alternator, which works great, but I o nm ly bought it because it was the only one in town.

Get a DENSO brand remanufactured alternator. Parts store house brands are shit.

I recommend DB electrical for a stock, everyday use replacement. I have one going for about 4 years now, and I abuse it heaving as it's on a truck with a plow motor. Want the best in the business? Get a Denso alternator, they will last forever.

The Denso remans are pretty great, as they are also an alternator manufacturer.

On the flip side Reman Denso ALT are great IMHO.

First, if your alternator is putting out 13.8V while the car is running, your alternator is fine. Period. If your battery passes a load test after being fully charged, it is fine.

Im running a denso they cost a lot but worth it

Alternators don't make good battery chargers and if your alternator is on its way out then it may not be able to charge the battery. A fully charged battery measures 12.6V when the car is not started. When it's discharged by 75% then it measures 12.4V. if it's like 12V then it's totally dead. When you start the engine and the alternator turns, at idle you should have at least 13.4 Volts. If it's less than this then try reving the RPM's to like 2000rpm. You now should have at least 13.4V. If you don't then you have a problem either with the regulator or you have a bad diode.

alright guys...i charged the battery and it started right up...put my meter on the batter with it running and it just kept going down in voltage over a 10 min span...so i would say the alt is bad...