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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Serial # question

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Tony Castellani

12-13-2006 04:28:30




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Please excuse my ignorance as I've just started on my OC-4. In doing some browsing I have a question about the earlier crawler serial numbers. I noticed that some start with 1WR or like mine 2WR and I saw even 4WR and I wonder if theres a significance to those first letters. I'm assuming that the remaining 3 numbers are the sequence number in which it was built, but I am curious about the first 3.

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SherryS

12-13-2006 06:54:29




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 Re: Serial # question in reply to Tony Castellani, 12-13-2006 04:28:30  
The prefix in your serial number (1WR thru 7WR) indicates blocks of serial numbers. For instance, the Oliver OC-4 serial numbers started with 1WR001 and then were used to serial number 1WR999. The next serial number was 2WR000 and this was used up to 2WR999 with the next one being 3WR000. You get the drift. The last block of numbers used was in the 7WR range. After that the production moved to Charles City , IA. They used an alltogether numbering system. All the diesel OC-4 which were built in Cleveland, OH used the WD prefix.

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