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344 rear main seal
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south ks View Drop Down
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Joined: 09 Nov 2015
Location: belle plaine ks
Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote south ks Quote  Post ReplyReply Direct Link To This Post Topic: 344 rear main seal
    Posted: 04 Feb 2016 at 6:11am
Hi, I'm in the process of installing a 7000 military engine in my hd6g! I am wondering if anyone has the number for the rear main seal for the original 344 engine and flywheel? The outer diameter of the seal is approximately 6 5/8 inches and the inner diameter is approximately 5 1/2 inches! Thanks

Edited by south ks - 04 Feb 2016 at 6:29am
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Joined: 16 Aug 2011
Location: SW New York
Points: 689 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dozer Quote  Post ReplyReply Direct Link To This Post Posted: 04 Feb 2016 at 7:08am
Chicago Rawhide 53701 It is a discontinued seal size. I found the last one on the internet Good lick
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Joined: 16 Aug 2011
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Points: 689 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dozer Quote  Post ReplyReply Direct Link To This Post Posted: 04 Feb 2016 at 7:13am
There is one on eBay right now for $12.99
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Joined: 09 Nov 2015
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Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote south ks Quote  Post ReplyReply Direct Link To This Post Posted: 04 Feb 2016 at 4:38pm
Thank you very much! My flywheel had a sleeve on it, so it measured 5 1/2 inches. So I might remove the sleeve and see what it looks like, and go from there!
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Points: 6 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Chock2 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2016 at 9:15pm
A good source of information is the Timken / National Seal catalog.  It is available online and lists all of the dimensions of their seals.  The catalog is file 7707.pdf and it is 701 pages so find the seal by dimension then get the National number.  I have had very good luck finding seals for my HD6G and other old farm equipment (Gleaner combine).  While you are on the timken site, the bearing catalog is a good download also
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