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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Cat D4 questions from a newbie

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bpost58

09-11-2019 17:21:50




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Greetings, I am looking at acquiring a Cat D4 serial number 7u28733 SP. My question is are parts available for it, new or used? It has a D4N winch on it and runs fine, with it being converted to electric start. I would deeply appreciate any words of wisdom on this old (1950's) dozer. The more I can learn the better decision I can make on buying it.




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Bret4207

09-15-2019 05:48:00




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 Re: Cat D4 questions from a newbie in reply to bpost58, 09-11-2019 17:21:50  
I also have a 7UD4, a '53 model. I suggest going to this site and looking in the forum- http://www.acmoc.org/bb/



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bpost58

09-12-2019 07:49:27




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 Re: Cat D4 questions from a newbie in reply to bpost58, 09-11-2019 17:21:50  
That is my fear, the track plates are worn badly and the cost of replacing them could really add up. The drive sprockets look okay to me but I know VERY little about spotting track issues. I know it runs very well but the track issues could add up to big bucks real fast for what is essentially an antique.



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moonlite37

09-15-2019 15:17:57




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 Re: Cat D4 questions from a newbie in reply to bpost58, 09-12-2019 07:49:27  
Did you consider turning the track pins? Of do they turn pins on s machine that small?



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dpendzic

09-13-2019 06:39:02




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 Re: Cat D4 questions from a newbie in reply to bpost58, 09-12-2019 07:49:27  
is it the track plates or the grousers on them? grouser plates can be welded on. their are measurements that need to be taken to determine wear.rail height,pin and bushing wear,idler and roller diameters, and the sprocket teeth measurements.



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dpendzic

09-12-2019 06:10:54




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 Re: Cat D4 questions from a newbie in reply to bpost58, 09-11-2019 17:21:50  
thats a 1954 model year--parts can be found at Caterpillar and aftermarket new--and used parts from many dismantlers---check the undercarriage very carefully as that is the most expensive to repair



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Jo Bird

09-12-2019 04:18:49




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 Re: Cat D4 questions from a newbie in reply to bpost58, 09-11-2019 17:21:50  
Yes parts are available , new and used . Can point you to some supplier's I used in repairing mine .. BTW you do realize they are money pits on par with BOAT owners or Brake Out Another Thousand.. Stopped keeping track of what it cost me to repair mine when the parts exceeded 2 times the cost of buying the machine . LOL



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hector gemme

09-12-2019 02:49:40




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 Re: Cat D4 questions from a newbie in reply to bpost58, 09-11-2019 17:21:50  
The D4 parts are available from CATERPILLAR dayler and am still have some used one



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