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Overhaul kits for 3500 engines?

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=185164
Printed Date: 03 Sep 2025 at 8:21am
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Topic: Overhaul kits for 3500 engines?
Posted By: nick121
Subject: Overhaul kits for 3500 engines?
Date Posted: 15 Dec 2021 at 5:31pm
Looking into picking up a 7040 with a bad engine, apparently was on manure pump and rings went... I'm thinking more to the story but doesn't matter.
 Just wondering what engine overhaul kits are best? Haven't looked into anything yet, but is agco best?




Replies:
Posted By: ryan(IN)
Date Posted: 15 Dec 2021 at 7:06pm
AGCO would be the best but don't think they are available anymore.  79017720 is the p/n.  Shows a price but would have to be at work to check availability. My guess is backordered like everything else Cry

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ryan
1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62


Posted By: DIESEL
Date Posted: 15 Dec 2021 at 9:38pm
My cousin got a complete overhaul kit for an 8070 just a few months back, its not cheap



Posted By: steve(ill)
Date Posted: 15 Dec 2021 at 9:59pm
these guys seem to sell a variety of kits on e-bay...




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Like them all, but love the "B"s.


Posted By: Charlie175
Date Posted: 16 Dec 2021 at 7:06am
Agkits list them but not as a complete kit.

https://www.agkits.com/allis-chalmers-d3400-d3500-d3700-sleeve-assembly.aspx#.Ybs5Y2jMIuU" rel="nofollow - https://www.agkits.com/allis-chalmers-d3400-d3500-d3700-sleeve-assembly.aspx#.Ybs5Y2jMIuU

https://www.agkits.com/search.aspx?find=Allis+Chalmers+7040&Submit.x=46&Submit.y=23&category=5136" rel="nofollow - https://www.agkits.com/search.aspx?find=Allis+Chalmers+7040&Submit.x=46&Submit.y=23&category=5136



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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD


Posted By: ryan(IN)
Date Posted: 16 Dec 2021 at 8:08am
79017720 is back ordered with unknown availability

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ryan
1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62


Posted By: ryan(IN)
Date Posted: 16 Dec 2021 at 11:40am
The number I quoted earlier was a full overhaul kit. Included valves and such. A block kit which is the same minus stuff for the head is available. P/n:79015492 is available. Little over three grand

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ryan
1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62


Posted By: DougG
Date Posted: 16 Dec 2021 at 12:04pm
Is that 7040 on Ill. CL ?


Posted By: nick121
Date Posted: 16 Dec 2021 at 5:48pm
I'll look into the suggestions so far.. Going to take a look at the tractor and see if we end up with it. 
It's not on craigslist. it's in canada


Posted By: Adam Stratton
Date Posted: 16 Dec 2021 at 9:10pm
I've used Don's Diesel for a kit on a 7060 and 7000. Only a couple of hundred hours on them both but was pleased with the kit and performance so far.
http://www.donsdiesel.com/catalog/" rel="nofollow - Don's Diesel


Posted By: DougG
Date Posted: 17 Dec 2021 at 11:26am
Dons Diesel is more inline on price, ot what I'm used to anyway


Posted By: Gatz in NE
Date Posted: 17 Dec 2021 at 5:23pm
also had good results from Don's Diesel for a 262 overhaul.




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