The latest additions to John Deere’s D-Series excavator line are the 160D LC, 200D LC and 225D LC. Net horsepower ratings for these new models are 121, 164 and 164, respectively. The 160D LC and 200D LC feature Tier-3-compliant John Deere PowerTech diesel engines, and the 225D LC uses a Tier-3-compliant Isuzu diesel engine. Operating weights are approximately 40,000, 50,000 and 53,000 pounds, respectively; and compared with predecessor models, the D-Series machines feature redesigned cabs, refined hydraulic systems and new cooling systems. Drawbar pull, swing torque, lift capacity and arm force are significantly enhanced.