1998 Caterpillar D6r xl with 175 horsepower, no leaks or blowby, weighs 21 tons.undercarriage is good at 65%, but could use a set of sprockets,blade is good with newer bushings. very little wear and new brush bar just installed, all glass intact,heat and air conditioning work good. Come run it this is a good sound and tight dozer with no apparent issues that's ready to work.