C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Alternator Identification

Thread Tools
 
Search this Thread
 
Old Dec 21, 2010 | 03:53 PM
  #1  
Burnt71's Avatar
Burnt71
Thread Starter
Le Mans Master
15 Year Member
 
Joined: Jul 2004
Posts: 6,248
Likes: 4
From: Lancaster PA
Default Alternator Identification

Where do I find the numbers on an alternator ? trying to determine the date. Do you have to remove it from the car to find it ?
Reply
Old Dec 21, 2010 | 04:09 PM
  #2  
Frogday's Avatar
Frogday
Drifting
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 2002
Posts: 1,697
Likes: 3
From: Woodinville WA
Default

Numbers are stamped into the housing. There are two alternators for 1971, 1100544 is 61 amp for AC cars and 1100543 is 42 amp for non-AC cars. The date code is a 3-digit code. First digit the year, second the month, third the day - 1A7 is 1/7/1971.
Reply
Old Dec 21, 2010 | 04:45 PM
  #3  
Burnt71's Avatar
Burnt71
Thread Starter
Le Mans Master
15 Year Member
 
Joined: Jul 2004
Posts: 6,248
Likes: 4
From: Lancaster PA
Default

Originally Posted by Frogday
Numbers are stamped into the housing. There are two alternators for 1971, 1100544 is 61 amp for AC cars and 1100543 is 42 amp for non-AC cars. The date code is a 3-digit code. First digit the year, second the month, third the day - 1A7 is 1/7/1971.
Looked all over the housing and can't find any numbers . It's a delco Remy and the only stamping is the word "ROYAL" ?
Reply
Old Dec 21, 2010 | 06:06 PM
  #4  
Frogday's Avatar
Frogday
Drifting
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 2002
Posts: 1,697
Likes: 3
From: Woodinville WA
Default

It may be a replacement part you are looking at. Try a search on eBay for 1100544 and you can see what the stamp looks like and its location. I don't have a photo handy.
Reply
Old Dec 21, 2010 | 06:10 PM
  #5  
champs65's Avatar
champs65
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2006
Posts: 8,246
Likes: 114
From: Watkins Glen NY
Default

If the alternator is indexed correctly, the numbers should be on the top rear of the case...in the area of the bolt that tightens the belt.
Reply
Old Dec 21, 2010 | 07:25 PM
  #6  
Burnt71's Avatar
Burnt71
Thread Starter
Le Mans Master
15 Year Member
 
Joined: Jul 2004
Posts: 6,248
Likes: 4
From: Lancaster PA
Default

Originally Posted by champs65
If the alternator is indexed correctly, the numbers should be on the top rear of the case...in the area of the bolt that tightens the belt.
@ that location it has the word "ROYAL" ... must be a replacement
Reply
Old Dec 21, 2010 | 07:26 PM
  #7  
Burnt71's Avatar
Burnt71
Thread Starter
Le Mans Master
15 Year Member
 
Joined: Jul 2004
Posts: 6,248
Likes: 4
From: Lancaster PA
Default

Thanks all
Reply
Old Dec 21, 2010 | 10:08 PM
  #8  
gq82's Avatar
gq82
Safety Car
20 Year Member
 
Joined: Sep 1999
Posts: 4,930
Likes: 11
From: AnyTown NJ
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

Alt on my 71 w/ac...this is the location with the numbers/letters you should be looking for if you are going to replace it with an original type.

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Dec 22, 2010 | 08:40 AM
  #9  
corvetteload's Avatar
corvetteload
Melting Slicks
 
Joined: Aug 2005
Posts: 2,359
Likes: 15
From: Confusion
Default

"ROYAL" as in screwed!!!! Good luck in your search, always on ebay................
Reply

Get notified of new replies

To Alternator Identification





All times are GMT -4. The time now is 09:43 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE