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The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
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Search for HD4 Serial numbers
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stileseverett View Drop Down
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Joined: 28 Oct 2019
Location: Macon County NC
Points: 4 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stileseverett Quote  Post ReplyReply Direct Link To This Post Topic: Search for HD4 Serial numbers
    Posted: 30 Oct 2019 at 5:14am
The old AC HD4 appears to be a model from somewhere in the 70's.  One source indicated the numbers would be on the lower frame on the front of the dozer, but were not.   Have been unable to find a placard or numbers anywhere else.  Would numbers from the  engine give a clue as to the date of manufacture?

Everett Stiles
Macon County
North Carolina
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Randaleky View Drop Down
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Joined: 17 Aug 2011
Location: belfry, ky.
Points: 427 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2019 at 7:48am
Check the front of the torque tube just behind the engine oil filter . mine is on the end where the engine block and tube connect. should say HD4  _____  
Most are just in front of the front grill on flat frame in the middle of it.     
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stileseverett View Drop Down
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Joined: 28 Oct 2019
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Points: 4 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stileseverett Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2019 at 2:43pm
Thanks very much.  I'll go look!
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Randaleky View Drop Down
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Joined: 17 Aug 2011
Location: belfry, ky.
Points: 427 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Randaleky Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2019 at 6:37pm
ok. you are welcome.  also welcome to the forum.  There are a lot of knowledgeable people on here.  can you send some pics of your HD4 ?
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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
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Points: 10699 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2019 at 7:30pm
Randal, sent you a pm. Tracy
No greater gift than healthy grandkids!
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Coke-in-MN View Drop Down
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Joined: 12 Sep 2009
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Points: 41897 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 02 Nov 2019 at 4:41pm
My HD4 has the number on the front flat part of frame ahead of the grill piece - right side when facing fromt of machine - they were partially covered by the metal grill guard or metal plate bolted into front of machine 
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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stileseverett View Drop Down
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Joined: 28 Oct 2019
Location: Macon County NC
Points: 4 		Post Options Post Options   Thanks (0) Thanks(0)   Quote stileseverett Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 8:29pm
Randeleky:  Just as you say:  On the top of the front frame under the grill.  Prithee, where do I look for the year of manufacture.  Thanks a lot!
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pinball View Drop Down
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Joined: 28 May 2014
Location: missouriu
Points: 6310 		Post Options Post Options   Thanks (0) Thanks(0)   Quote pinball Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2019 at 10:22pm
just go on the net . and type in allis chalmers h4 for a search. you will find out all the specks and serial numbers.
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