HD7GB loader rear engine seal #
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206797
Printed Date: 22 May 2025 at 6:26pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD7GB loader rear engine seal #
Posted By: Braswell
Subject: HD7GB loader rear engine seal #
Date Posted: 20 May 2025 at 8:48am
I have the wet bellhousing and I need seals for the crankshaft . There are 2 separate seals … one facing the engine and the other facing the bellhousing. They are identical National # 77286HC I’ve tried a few places to match them up but I need the Original Allis Chalmers part number for them. All I can find is the seal for a dry bellhousing housing.
Reliance sent a seal they say is a double lip but it sure doesn’t look like one . Any help appreciated or where to find the parts manual
Randy
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Replies:
Posted By: Codger
Date Posted: 20 May 2025 at 10:40am
What is the serial number of the tractor and engine? Four, or six cylinder?
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That's All Folks!
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Posted By: Lazyts
Date Posted: 20 May 2025 at 12:45pm
74029500 seal from Minnpar is about $50. Pretty sure the 670 had same rear seal as 685/11000 series.
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Posted By: AC Mel
Date Posted: 20 May 2025 at 3:04pm
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Yes...I concur with Trevor....that part number should be 74029500...available from Minparr. should be applicable to tractor serial numbers 27201-27950 and 34U27951-up. My parts books do not show any configuration of 2 seals....have no idea of what you might have going on there? Yes that seal is the same for both the 3500 and 11000 engines
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Posted By: DMiller
Date Posted: 20 May 2025 at 3:55pm
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Problem with a Gb is they use a IVECO Engine. Totally Different Animal.
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Posted By: AC Mel
Date Posted: 21 May 2025 at 12:03pm
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Dave...The original 7GBs had the 3500....we have 2 of them. I think any GB with an IVECO...probably was put in for a replacement. The dealers were pushing that conversion big time after Fiat took over. We have a 645 with that conversion from the 3500 AC. Actually a pretty good running engine...but have trouble finding parts
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Posted By: DMiller
Date Posted: 21 May 2025 at 6:17pm
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All the Gb's that I perused around here had Iveco on them. Back when was having real concerns with the old 7G
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Posted By: Codger
Date Posted: 21 May 2025 at 6:29pm
The ones I seen of course that were new were IVECO powered. Older ones I seen had the 3500 engine, or the 344, (I think) four cylinder Allis engine.
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That's All Folks!
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