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: Enclosed Cab, Air Conditioner, Air Ride Seat, Differential Lock, Left Hand Reverser, Cab Suspension, Quicke Q7M Loader w/Joystick, Grapple Bucket, Suspended Front Axle, 5 Rear Remotes, Auxiliary Hydra... more info about the 2017 Challenger MT555E.