[Mgs] Replacement alternator

Charles Robinson ccrobins at ktc.com
Sat Apr 24 03:08:50 MDT 2021


Glad it's resolved.  I was drawn to the 16AC because I figured a lesser 
output unit might be physically smaller.

I have a '69 with a 5-wire alternator which has an internal regulator.  
Perhaps different accessories for the U. S. market. (?)  It's a rebuilt 
unit from Autozone, marketed under the Duralast brand name, came with a 
lifetime warranty.  Last replacement was a number of years ago.  Not 
even sure they carry it now.   Don't drive the B much now; it's main 
enemy is the passage of time.

CR

On 4/23/2021 6:50 AM, PaulHunt73 wrote:
> It's on and working well.  It's a 72, 16AC would be the wrong type as 
> it uses an external regulator, I doubt anyone would bother fitting one 
> of those these days. 16/17/18ACR (internal regulation) should all be 
> plug compatible with each other but require a different plug if 
> replacing a 16AC.  The original 16AC and ACR were 34 amps, rising 
> though the 17 to the 18 at 45 amps.  If that 16AC really is 45 amps 
> then it's not a standard unit and may have the same problem.
> PaulH.
>
>     ----- Original Message -----
>
>     You didn't say what year  the B is.  I looked the alternator up. 
>     I note there's a16AC unit,45A, for 68-69.  Might be a better fit. 
>     What unit came off the car?
>
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