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Bosch alternator
johno - September 1st, 2010 at 05:39 PM

Can anyone please tell me if the alternator that I have purchased with numbering K1 14V 23/51A could possibly be a 75 amp alternator as I believe it is probably a 51 amp alternator.

Is there anyway if it is a 51 amp alt that it could be upgraded to 75 amp?

Thanks
John


vlad01 - September 1st, 2010 at 08:21 PM

No not really. Unless to machine the housing of the alternator shorter to fit a wider stator and also upgrade the rectifier. Not worth the time or effort, that is if it can even be done.


johno - September 2nd, 2010 at 05:59 AM

thanks for that info but are you able to tell me at all if with that labelling it means 51 amps { as thats kind of how it looks to me , but I'm definately no auto electrician,}, as I was reading somewhere that I would have to beef up my wiring for a 75 amp
thanks for your help - seems pretty hard to find out otherwise - have tried googling but seem to hit blanks on 75 amp alternaters
cheers
john


Sides - September 2nd, 2010 at 08:12 AM

Pretty sure the 51A does mean 51 Amp's.... that's how it works for sure with Bosch generators (don't have a Bosch alternator nearby to check, and you're right about googling it)

On the wiring... well whether a stock charging wire will be an issue with a 75A can't say for sure, but if it was my car, well that wire would be getting upgraded... pretty simple job if the battery is still in the standard spot.

:tu:


johno - September 2nd, 2010 at 08:19 AM

thanks very much for this info - I appreciate it


ryana89 - September 4th, 2010 at 09:00 PM

http://a.imageshack.us/img830/4124/img0155o.jpg

Same alternator as mine, and Im 100% certain mine is a 90Amp alternator. Put 1 and 1 together and its easy to see the A follows the AMP output. But you've already figured that out:blush:


68AutoBug - September 4th, 2010 at 10:46 PM

Quote:
Originally posted by johno
Can anyone please tell me if the alternator that I have purchased with numbering K1 14V 23/51A could possibly be a 75 amp alternator as I believe it is probably a 51 amp alternator.

Is there anyway if it is a 51 amp alt that it could be upgraded to 75 amp?

Thanks
John


Hi John

All VW beetle alternators are 51 amps.. at 14 volts..

that's over 600 watts output..

which is fine for most people...

You can buy 75 amp alternators new...
as they were never installed in beetles as standard equipment..

with a 75 amp alternator, You would need to use larger cables from the alternator to the battery, and from the battery to whatever is going to use all those extra Amperes...

like a large Amplifier etc...

LEE


johno - September 6th, 2010 at 09:04 PM

thanks everyone for your replies
cheers
john


Uber Kafer - September 19th, 2010 at 10:51 AM

Quote:
Originally posted by 68AutoBug
All VW beetle alternators are 51 amps.. at 14 volts..
..
LEE




yes they're all 51 Amps..except when they are 55 Amps....


68AutoBug - September 19th, 2010 at 11:59 AM

Quote:
Originally posted by Uber Kafer
Quote:
Originally posted by 68AutoBug
All VW beetle alternators are 51 amps.. at 14 volts..
..
LEE




yes they're all 51 Amps..except when they are 55 Amps....


That is the first 55 ampere alternator on a beetle I have seen..

LEE


PS: 55 is the size of many other OE alternators..


Uber Kafer - September 21st, 2010 at 08:17 PM

Lee, it may be true that its the first 55 ampere alternator you have seen..... but you have actually seen that photo before.

http://forums.aussieveedubbers.com/viewtopic.php?tid=80709&page=1#pid762149 

So how many times do you need to see it ???