MK Diamond MK-6000 Series Diesel Gearbox Saws are heavy-duty concrete saws engineered for operator convenience and better control during operations. The MK Diamond MK-6000 is configured for front pivoting and has easily removable rear and side panels to provide easy accessibility for maintenance. These concrete saws are powered by Kubota 4-cylinder, turbo-charged, liquid cooled, diesel fueled engines. These engines meet current EPA Tier 4/Stage 3A emissions regulations, which are the most stringent in this class. The 3-speed blade shaft gearbox allows for multiple blade diameters without belt/pulley changes reducing labor time. Available in three-speed gearbox configurations with 14 inch, 20 inch 26 inch, 30 inch and 36 inch blade guards.