Parts For Sale Please read forum guidelines before posting.

1972 alternator

Old Dec 27, 2025 | 12:15 PM
  #1  
cdoering's Avatar
Thread Starter
Registered User
 
Joined: Apr 2012
Posts: 676
1972 alternator

1972 Oldsmobile alternator 1100597 61A date code 2H24. Has been been rebuilt, guarantee for 1 year. Price $300.




Old Dec 27, 2025 | 05:09 PM
  #2  
flameorange's Avatar
Registered User
 
Joined: Aug 2008
Posts: 130
From: Ottawa, Ontario, Canada
Dumb question, just to confirm this is for external voltage regulator? ✌️
Old Dec 27, 2025 | 06:08 PM
  #3  
70Post's Avatar
Registered User
 
Joined: May 2008
Posts: 3,634
From: Austin, Texas
Just look at the two metal spade terminals that are visible in the last pic....the arrangement of those shows it has a internal regulator. If the alt was set up for a external voltage regulator the two terminals would be positioned differently.....a
" I I " arrangement instead of the " - - " arrangement you see on the alt.

Many of the Delco alt cases can be rebuilt using either regulator setup (internal and external).
Old Dec 28, 2025 | 02:10 AM
  #4  
joe_padavano's Avatar
Old(s) Fart
 
Joined: Mar 2007
Posts: 50,841
From: Northern VA
Only the Toro used an internal regulator for the 1972 model year.
Old Dec 28, 2025 | 05:52 AM
  #5  
stellar's Avatar
stellar
 
Joined: Feb 2009
Posts: 1,366
From: Pittsburgh Pa.
My books show that number as a chevy and gmc truck for the 1973 model year. The late august date would support it being intended for 1973 production models. There was also an auto workers strike during that time, so it could possibly be a correct alternator date for 1973 models built well into the 1973 calendar year.
Old Dec 29, 2025 | 07:23 AM
  #6  
cdoering's Avatar
Thread Starter
Registered User
 
Joined: Apr 2012
Posts: 676
yes, external
Old Dec 29, 2025 | 07:27 AM
  #7  
cdoering's Avatar
Thread Starter
Registered User
 
Joined: Apr 2012
Posts: 676
If you have a "Good Olds Days" Oldsmobile book, the number shows its for a 1972. This also comes with a 1 year warranty. I had it professionally rebuilt.
Old Dec 29, 2025 | 08:46 AM
  #8  
stellar's Avatar
stellar
 
Joined: Feb 2009
Posts: 1,366
From: Pittsburgh Pa.
I don't have the Good old days book, but I believe you. Due to the auto workers strike, I think 72 models were being built into the 73-calendar year. Also, due to the strike parts were being sourced from anywhere they could get them. So it is very possible that unit was correct for that year. Because of the strikes a lot of part numbers and part dates were unusual. It is a nice-looking unit.
Old Dec 29, 2025 | 09:59 AM
  #9  
joe_padavano's Avatar
Old(s) Fart
 
Joined: Mar 2007
Posts: 50,841
From: Northern VA
I remain skeptical of third party literature, as it frequently is not correct. The GM parts books show 1100597 as 1973 Chevy application. The Jan 1972 Olds parts book does not list this number alternator. All 1972 Olds alternators except Toro would have been externally regulated. This one has an internal regulator, and the Toro P/N with internal regulator is different.




Old Dec 30, 2025 | 07:46 AM
  #10  
costpenn's Avatar
Registered User
 
Joined: Jun 2011
Posts: 2,866
From: Carrolllton Texas
Originally Posted by joe_padavano
Only the Toro used an internal regulator for the 1972 model year.
Joe, would you have a photo of a 72 Toro alternator? Curious as to if it has the heat sink on the back or is open faced.
Old Jan 17, 2026 | 07:41 PM
  #11  
flameorange's Avatar
Registered User
 
Joined: Aug 2008
Posts: 130
From: Ottawa, Ontario, Canada
Cool

Great info for me thankyou!

Originally Posted by 70Post
Just look at the two metal spade terminals that are visible in the last pic....the arrangement of those shows it has a internal regulator. If the alt was set up for a external voltage regulator the two terminals would be positioned differently.....a
" I I " arrangement instead of the " - - " arrangement you see on the alt.

Many of the Delco alt cases can be rebuilt using either regulator setup (internal and external).
Old Jan 18, 2026 | 12:43 PM
  #12  
RocketDevo's Avatar
Registered User
 
Joined: May 2012
Posts: 486
From: New Westminster B.C.
I can say definitely 1100597 alternator is not an Olds alternator, nor 1972.
As far as another member asking about a 1972 Toro alternator, they are neither open face nor have the diamond back heat sink that the 1970 442 use.
By the way the 1100597 is used for 1973 Nova"s and 1974 Chevelles.
Old Jan 18, 2026 | 01:57 PM
  #13  
jensenracing77's Avatar
Registered User
 
Joined: Feb 2009
Posts: 11,916
From: Brazil Indiana
Originally Posted by costpenn
Joe, would you have a photo of a 72 Toro alternator? Curious as to if it has the heat sink on the back or is open faced.
The 72 Toro was not an open face. 71 was the last year for that even for the Toro.
Old Mar 14, 2026 | 05:47 AM
  #14  
flameorange's Avatar
Registered User
 
Joined: Aug 2008
Posts: 130
From: Ottawa, Ontario, Canada
Thanks!

Originally Posted by 70Post
Just look at the two metal spade terminals that are visible in the last pic....the arrangement of those shows it has a internal regulator. If the alt was set up for a external voltage regulator the two terminals would be positioned differently.....a
" I I " arrangement instead of the " - - " arrangement you see on the alt.

Many of the Delco alt cases can be rebuilt using either regulator setup (internal and external).
thank you sir ✌️

Old Mar 15, 2026 | 04:21 PM
  #15  
cdoering's Avatar
Thread Starter
Registered User
 
Joined: Apr 2012
Posts: 676
Your parts page doesn't even show all correct numbers - nothing on the page show 70 442 w30 - 1100880 or 1100890.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
joe_padavano
Small Blocks
1
Jul 22, 2023 08:32 PM
1977442
Parts Wanted
4
Apr 27, 2023 07:10 AM
EdwardB
Electrical
14
Oct 17, 2021 06:57 PM
Will22
General Discussion
14
Jun 28, 2018 01:49 PM
Will22
Parts Wanted
2
Jun 28, 2018 09:56 AM


Thread Tools
Search this Thread

All times are GMT -7. The time now is 04:04 AM.