H3/HD3 Missing serial number
Printed From: Unofficial Allis
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=207580
Printed Date: 06 Oct 2025 at 1:52pm
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Topic: H3/HD3 Missing serial number
Posted By: CJWJ
Subject: H3/HD3 Missing serial number
Date Posted: 27 Jul 2025 at 1:58pm
I've looked all over my H3/HD3 Allis Chalmers for a serial number but cannot find anything that correlates to a serial number. I'm sure this tractor was made in the 1960s but I can't find any indication of the number of hours on the machine. Sharing this photos in case anyone understands what it means -- DC23S is imprinted on the right side (pictured). 11913 is engraved on a plate behind the blade. GDN16802 F on the muffler or exhaust. . Hoping to list this for sale.
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Replies:
Posted By: wade89
Date Posted: 27 Jul 2025 at 2:05pm
| That’s a casting number. The serial is stamped into the bell housing of transmission where it bolts to the engine. Should be on upper left side as you sit on it. |
Posted By: CJWJ
Date Posted: 28 Jul 2025 at 12:58pm
I think I found it—H-2296-R -- still unclear on if it is a 1961 or 1962.
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Posted By: DrAllis
Date Posted: 28 Jul 2025 at 1:14pm
| 1961 build |
Posted By: im4racin
Date Posted: 28 Jul 2025 at 6:17pm
| That is the engine number |
Posted By: DrAllis
Date Posted: 28 Jul 2025 at 8:47pm
| Chassis s/n began at 1001. Gas engine s/n for an H-3 also began at 1001. So, figuring there weren't many HD-3 diesel engines built, it still probably makes it a 1961 chassis build. 1962 models started at 3199. I don't think they made 900 diesel versions in 1961. But who knows? Maybe the HD-3's had chassis serial numbers all their own? |
Posted By: Gary
Date Posted: 29 Jul 2025 at 7:48pm
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Tractordata lists the H3 and HD3 separately, but list the same Serial Number Range for each year, H3 and HD3. G |
Posted By: Alex09(WI)
Date Posted: 02 Aug 2025 at 10:45pm
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YOU NEED THE TRACTOR SERIAL #, THE PIC YOU POSTED IS THE ENGINE SERIAL #. I just had H3 #9866 pull up to my store last week with engine serial #H-2596-R. Engine appears to be original based off paint, etc. I believe the H-xxxx-R format is for the crawlers with G160 engines that started at crawler serial #6959. The 149 engined H3 crawlers have engine serial # of 3-xxxx-R
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