Farm Equipment - AC Part Numbering System

AC Part Numbering System

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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=120736
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Topic: AC Part Numbering System

Posted By: Ted in NE-OH
Subject: AC Part Numbering System
Date Posted: 21 Mar 2016 at 4:46pm

How did Allis Chalmers pick part numbers. Was there a system for assigning part numbers?

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CA, WD, C, 3 Bs, 2 Gs, WC, I-400, 914

Replies:

Posted By: DougG
Date Posted: 21 Mar 2016 at 6:03pm

Always wondered that too,, so many numbers

Posted By: den/southern illinoi
Date Posted: 21 Mar 2016 at 6:28pm

While I will not even start to say I am an authority on the number system, I have figured out a few things about it by having the parts # books and microfiche for parts #s.
First of all, the numbers started with 6 numbers such as 237496. After a while they ran out of numbers so all of these had a "70" added in front of them. They then started with a "71" in front of the numbers etc. I think that the last I have seen have a "74" in front of the numbers.

Now there were groups of numbers assigned to various plants. For example the early numbers (and earlier there were a combination of letters and numbers) were assigned to the West Allis plant. The Independence plant where the Gleaners were built was assigned numbers starting with "71" so if you see a number such as 71107252, it is a Gleaner part. This number I just used is a beater blade for an A and/or a R. The items produced at the LaCrosse Works started with the 3??plus 3 more numbers on the parts (later the 70 was added in front of these 3s) and went up to the 7?? area. Now what I just wrote is not totally true as the Oxnard Works plant used the 4?? first 3 numbers on their 6 digit part number. And to cloud the explanation even more, the LaPorte Works started with the
5?? first 3 numbers.
Clear as mud. Well I tried. I do know for example when I see a part number starting with 711, I know it is a Gleaner part. If it starts with a 5?? number then it is an item built at LaPorte such as an All Crop Combine and the other pieces of equipment built at LaPorte.
Den

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Own 4 wheel 20, 2-5015, 5020 and associated equipment and 2 electric forklifts.

Posted By: DrAllis
Date Posted: 21 Mar 2016 at 6:39pm

The addition of "7" or "70" was when the Deutz thing took place. Gleaner combine numbers always were 11 or 13, they just added a 7 in front. For example, a model 7000 tractor power shift clutch disc was a 261212 from Allis. When Deutz took over it became 70261212.

Posted By: JoeO(CMO)
Date Posted: 21 Mar 2016 at 6:43pm

I was told once the bolts, etc. started with a 9, older tractors.

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Posted By: den/southern illinoi
Date Posted: 21 Mar 2016 at 7:06pm

The "9" was used (from what I can tell) on boxes of items such as nuts, bolts, cotter pins, etc that came in and was used on a multitude of machines. Den

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Own 4 wheel 20, 2-5015, 5020 and associated equipment and 2 electric forklifts.

Posted By: norm[ind]
Date Posted: 21 Mar 2016 at 7:26pm

it started as U-IN THE OLD PARTS BOOKS -U-3187- THE IT WENT TO 20 WAS ADDEDAS 203I87-- 71 WASADDED TO71203187 THEN AS YOU SEE IT TYODAY FOR THE NEW SYSTEM--THERE WERE DIFFERENT NUMBERS FOR DIFFERENT TOOLS LIKE MOWERS-COMBINES -ETC. WAS TOLD BY AN OLD DEALER DONOT REMEMBER WHICH IS WHAT ANYMORE- ASK BILL LONG FOR IT HE WOULD KNOW- MY 2 CENTS

Posted By: Bill Long
Date Posted: 21 Mar 2016 at 8:02pm

When we started in the 30's the Allis Chalmers Number System for parts was as follows:

Tractor parts started with 2

Combine Parts Started with 5

Implement parts La Crosse La Ports started with 3

Bolts Nuts Washers etc started with 9

From here on in it is a guess

Oxnard parts started with 8

Cannot help with Springfield Part numbers - that is where the Crawler Tractors were made

That is the best I can remember. Now when I go to the AGCO parts book page I notice that the numbers for the old Allis Chalmers Parts start with 7 (?) then pick up the original Allis Chalmers numbers. Offhand I cannot tell how many digits the parts numbers had

Hope this is some help.

Good Luck!

Bill Long

Posted By: MACK
Date Posted: 21 Mar 2016 at 9:57pm

Deutz had some #s that was almost the same as ACs so the 70 was added to AC #s. MACK