When customers sound off, we listen. So when our Customer Advocate Group (CAG) participants asked us to turn down the noise and turn up productivity on our 550K Dozer, we responded with a spacious, redesigned cab that's noticeably quieter. An EPA Final Tier 4 (FT4)/EU Stage IV diesel engine for work in nonattainment areas. And Eco mode for improved fuel efficiency with no loss of productivity. There's more to like in the K-Series — such as a hydraulic-driven fan that provides efficient cooling, reduces noise, and conserves precious fuel. And a convenient sealed-switch module for fingertip control of numerous one-of-a-kind features. We also include Ultimate Uptime featuring John Deere WorkSight™ in base. You get pre-delivery and follow-up inspections, plus three years of JDLink™ Ultimate telematics, machine-health prognostics, and remote diagnostics and programming. You can work with your John Deere dealer to add other uptime services that meet the needs of your operation, too.