Machine description: CAT D6D SA,, Direct Drive Trans 6F + 4R,, CAT 3306T Aftercooled,, Hard Nose w/ Straight Dozer,, 24" Tracks w/ Ruber Inserts,... more info about the 1979 Challenger D6D SA.
Machine description: CAT D6D Special Application Crawler,, Cab, A/C,, Direct Drive Trans, 6F+4R, Rear Hydraulics, 2 Remotes,, Hydraulic Swinging Drawbar,, CAT 3306T Direct Injected, Aftercooled,... more info about the 1988 Challenger D6D SA.