Alternator Bosch or GENERAL MOTORS

Here is a stock Mk2 65 amp alternator (top) and the generic one-wire GM alternator (bottom). They're physically the same size, and the posts are almost identical in length. The GM fan is indented in the center though, and the VW one is flat. I used the GM fan, cause my stocker is disgusting, lol. I swapped the VW hardware/pulley over, since the GM pulley was obviously no good (flat, not offset).

Had a noise when idling my 2005 passat 2.0 diesel auto. When I turned the wheel at idle the belt would chirp and jump( at the pwr steering pump). Found out I had a defective Schrage(sp?) pulley/clutch on my Bosch 120 amp alternator.

i had the same exact problem. tested the battery and alternator, both tested good. came across a fanactic VW mechanic. told him my problem, he test drove it for a couple of minutes. then he told me it was my alternator. my alternator is going bad. so i took his advise, bought a new bosch, and now, new more red light. plus the new alternator seemed to give me more power, thats from what i feel. probably just my imagination.

well i need a alternator because my bearing is about to fail and my buddy is selling me a BRAND NEW bosch unit for 50 bucks so why not...

I got a bosch when mine died on me. No complaints :thumbup:

my alternator is of the clutched variety. Its from a 1997 and will not contribute to the crank nose keyway issue. 90A Bosch $35 plus shipping

I had to fit a new alternator since the old one had died on me: I replaced the non-original alternator with a bosch 90A alternator OEM VW/AUDI. It got up to 13.9volts now, the regulator limits it to 14V.

I ran the Toywagen with the waterpump and the crank. PS is only with the crank. I had to use a MK3 v-belt PS pulley for the waterpump as the stock one didn't align for some obscure reason. I have one of those aftermarket Bosch alts, so I had to put 2 washers to space the toyagen even more

Toyota - Denso $213.68 VW - Bosch $166.61 BMW - Bosch $169.00 Lexus - Denso $249.44 Honda - Denso $323.40 Mercedes - Bosch $180.26 Mazda - Denso $234.06 Audi - Bosch $187.10 Land Rover - Bosch $209.82 Porsche - Bosch $169.87

I bought my Bosch 120aalternator from Autozone because of the warranty and had to use it about 3k into its life when the bearing failed. I also had Bosch reman fail on my Nissan after 1 1/2.