Bosch 30019 regulator with Bosch 0120400836 alternator

[Mike_USC_65]

I’ve installed a NOS Bosch alternator without internal regulator. I understand I need a regulator but they all say they work with dc. Simple question is if a Bosch 30019 will work with this alternator.

[Bruce]

No, that regulator is for a generator, not your alternator.

Here's a new Bosch regulator that's the same as what VW installed in cars that came with that alternator:
https://www.thesamba.com/vw/classifieds/detail.php?id=2268380

This is the regulator Motorola makes:
https://www.thesamba.com/vw/classifieds/detail.php?id=2739491

I have the same alternator in my car and was using the Bosch regulator until last year when the regulator stopped working. To get my car going again, I had one of the Motorola regulator, so I put that in, thinking I would change it out later. It has been working fine for the past year.
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[Mike_USC_65]

Thanks!

[Mike_USC_65]

I see a Bosch

https://www.energyparts-shop.com/en/fiche/10695/regulator-bosch-0192062006 For roughly 600 USD

And a MAGNETI MARELLI 940016000200 for a fraction of the price, like 30 USD.

Any advice?

[MrGoodtunes]

Mike, I have very similar alternator in my buggy:

Been using using Bosch 0190 600 017 voltage regulator flawlessly for decades, like these:
https://www.google.com/search?client=firefox-b-1-d&q=bosch+0190600017

[Mike_USC_65]

[Mike_USC_65]

[ashman40]

I believe that 3-prong plug is the same one used on the brake master cylinder switches.
https://www.westcoastmetric.com/i-22964287-111-525.html?q=brake+switch+plug
https://www.westcoastmetric.com/i-22969109-113-515.html?q=brake+switch+parts

The female terminals are the standard 1/4" female locking terminals common on VW plugs. Here is an example. These are cheap and may not last a long time. But you can get an idea what they look like.
https://www.amazon.com/Baomain-Female-Terminals-connector-insulated/dp/B01MFEDLM4/


There are 3 wires running between the 3-prong plug and the eternal VR.

D+ = red
D- = brown
DF = green

Depending on your VR it will have a 3-prong or 4-prong plug. Even if the VR has 4-wires running to the 4-prong plug only three wires are used.


Since you are in the market for a new VR for your alternator... I will point you to this thread... Ford regulator on VW alternator? It works!!!

You can also check w/ your local parts house and see if they can source parts for a '74 VW Beetle. The earlier cars in this model year came with AL-78 alternators that had the external VR. My local FLAPS lists the black 4-wire VR as in stock. I think you are located in Sweden so I don't know how hard it is to get old car parts from the parts store?
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AshMan40
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'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}

[Mike_USC_65]

[Mike_USC_65]

[quote="Mike_USC_65"][quote="Mike_USC_65"][quote="MrGoodtunes"]Mike, I have very similar alternator in my buggy:

Been using using Bosch 0190 600 017 voltage regulator flawlessly for decades, like these:
https://www.google.com/search?client=firefox-b-1-d&q=bosch


Thanks again…Question….Is the brown ground wire going to the bolt in the purple circle?

[MrGoodtunes]