Now we have things like B9H, RJG, 2BW, & SPD as prefixes and they haven't even got warmed up yet.Ībout the same time off-highway machinery was included into the International System of Vehicle Identification Numbers or VIN, so now we have a 17-digit plate just like you'd see on your car, although in Cat's case it's called a P(roduct)IN plate. The same thing applied to the prefix, but then after years of 2U, 4X, etc, all of a sardine they ran out of prefixes and had to add a 3rd digit to them. Tillys currently have in stock for immediate delivery a non runner suit restoration 1945 Caterpillar D4 Bulldozer Serial - 2T8279 with a D4400 engine options include - Pilot Motor Start, Hyd LaPl.See More Details. Use our comparison tool to find comparable machines for any individual specification. It is currently not running and hasn't been for 10-15 years. 26 1 Updated: Tuesday, Ap08:39 AM 1969 CATERPILLAR D7 Crawler Dozers Sold Price: USD 7,000. Find equipment specs and information for this and other Crawler Dozers. Not sure how it is stamped on the plate fixed to your machine, but to enter into Cats systems the Serial Number should be a total of 8 digits. Wondering if anyone could help identify what year Cat I might have. I found a serial number tag on the motor that reads 3T21782.

Just bought a early 50's D7 3T I believe. But at that time no-one had figured they were going to turn out on-highway truck engines by the tens of thousands. I am completely new to the heavy equipment world. There weren't as many models for a start and it was usually unecessary to go to the extent of a 5-figure Serial Number, up to 9999 machines of a given model was fine. This machine is a little bit bigger than what I have been looking for, but the price and being local has made it an option. It has been on light farm duty since the early 80's. The dozer is tight and in very good shape. It has a 4 cylinder D339 engine and a power shift transmission. Back in the mists of time, about the time JC was a carpenter and the world was a sunnier, happier place - things were different. 1 I ran across this D-7 Cat locally today.

Cat d7 dozer serial number 48a5814