DW 21 questions

The CAT engine specs book I have lists a pony motor for an 86E DW21.....................

The pony start and the direct electric start machines of that era had different serial number prefixes. For example, 85E and 86E are both DW21's, but the 85E is direct electric start and the 86E is pony motor start. An 87E would be a direct electric start DW20 and an 88E would be pony start. Graders were designated that way as well.

I have one of each DW20's the book has them correct, the 87E is a direct electric start version of a DW20 and the 88E is a pony motor start.

Both of the DW20's had a #456 scraper, one has been converted to a water tanker, but still has the 456 tag on the neck.

The engine in all 4 series is a 5-1/8 x 6-1/2 6 cylinder turbocharged and aftercooled diesel engine.

Thanks fellas that all makes sence

The serial number was hard to read so there is every chance it's an E

Cheers
Dan

Wouldn,t be to many DW21,s left in Oz, be good to see some pics of her when you can. I have an old Caterpillar of Australia booklet and it has a pic of an almost new one in it working in Canberra owned by Phillips Construction i think it was, maybe her!

here are a few pics dan sent me on the weekend of the machine in question, lets hope the owner will part with it for the right price or dan digs up another jam tin, would be great to see it going rather than cashed in for scrap
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