[osagebowman]

Evening Sam & Ramius,

'Rachel Corrie' Model D-9; Took awhile to get, but it is a great descriptor.

'He who laughs last, didn't get it the first time' is yours truly, most definitely.

[Sam Cree]

I suppose the "D" stands for diesel?
I wonder if that means that Cat used to make gas or steam powered dozers.

Also, they used to (and may still?) designate the actual engine models with a "D", such as the D 343, a 6 cylinder model from the 1960's with 450 hp, turbo and aftercooled. A great motor, truthfully, one for which I have fond memories.