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Dozers and Crawlers

Caterpillar D7 Engine


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  #1  
Old 03-20-2006, 09:30:37 AM
Dustin D Ehli Dustin D Ehli is offline
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Default Caterpillar D7 Engine

Hello all, does anyone know where or if it would be possible to find an engine for a caterpillar D7, we have 2 at home but one has the engine block split right down the middle from lack of antifreeze and a North Dakota winter. our D7's have a very large 4 cylinder diesel engine with a 2 cylinder gas starting engine on the side of the diesel. are there junkyards with this kind of stuff?
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Dustin Ehli
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Old 03-20-2006, 11:08:58 AM
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Tanner Remillard Tanner Remillard is offline
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Default Re: Caterpillar D7 Engine

You might try Jim Zimmerman out of Iowa. He is listed in GEM every month for Cat parts. Not sure if he would have what your looking for, but he probably has a good idea of where to find it. His number is 641-982-4207
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Old 03-20-2006, 11:13:13 AM
Jerry Willis Jerry Willis is offline
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Default Re: Caterpillar D7 Engine

Give me the serial# off the engine will check out here in CA. Jerry willis
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Old 03-20-2006, 11:52:54 AM
Dustin D Ehli Dustin D Ehli is offline
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Default Re: Caterpillar D7 Engine

thanks guys, i won't be able to get serial numbers or anything unitl this weekend when i go home because thats where the thing is and i am a broke college student so i probably wont purchase anyting very soon but i just wanted to know if they are out there for the future.
things like the D7 should not be that rare.
Thanks, Dustin
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Old 03-20-2006, 12:49:48 PM
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Ken Majeski Ken Majeski is offline
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Default Re: Caterpillar D7 Engine

There are a few different versions of the D 7 and Engine. The 7 M, the 3 T, and the 17 A, ( most 17 A's are Turbo) come to mind. They are out there as the D 8800 ? power unit used the same engine. A guy near here has about 3 or 4 of them sitting behind his shed... Some Good and some maybe not so good...??? Yup, some could be for sale...????
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Last edited by Ken Majeski; 03-21-2006 at 11:08:32 PM.
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Old 03-21-2006, 05:36:04 AM
Kiwi Todd Kiwi Todd is offline
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Photo Re: Caterpillar D7 Engine

Sorry no D7 available, but I went and retrieved this old RD7 Cat engine for a friend yesterday....Quite a job as it turned out. I think the engine alone was around 2 tons +....this one is about 1935 I think?.

Kiwi Todd
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Old 03-21-2006, 09:02:00 AM
Dustin D Ehli Dustin D Ehli is offline
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Default Re: Caterpillar D7 Engine

Kiwi that looks like the same engine that is in our d7's
Dustin
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Old 03-21-2006, 12:17:40 PM
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Default Re: Caterpillar D7 Engine

If you look below the seat on the Left rear corner of the main Chassis you should see the serial number stamped there. It should start with 7M, 3T, or 17 A and that should tell you what type of engine you need. Actually the 3T that I had had an older 7 M engine so you can interchange them to a point. The 7M and 3 T had a dry clutch where the 17 A was a wet clutch.
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Old 03-21-2006, 09:50:48 PM
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Default Re: Caterpillar D7 Engine

I thought the earliest D7s could have the 9G code just like the RD-7. Maybe I'm remembering wrong.
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Old 03-21-2006, 11:04:02 PM
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Default Re: Caterpillar D7 Engine

Well they made D 7's way before the one that I had so you could be right. I think the one I had was sometime in the early 50's... I know it had the earlier 7M engine as I know the guy that changed it.

Only piece of Cat Equipment I have now is a 212 Grader.... That has the same engine as a D 2... Just a Little Squirt...
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