Jacobsen, a Textron Inc. company, launched the ZT400 and ZT600 zero-turn series of mowers.

The ZT400 is available with up to a 24-hp Kawasaki or a 25-hp Briggs & Stratton engine and 48-, 54-, or 60-inch width of cut and ground speeds of up to 9 mph.

The ZT600 is available with up to a 24-hp Kawasaki FX or a 25-hp Kohler Confidant EFI engine and 48-, 54-, and 60-inch width of cut and a ground speed of up to 10.5 mph. The ZT600 comes standard with a suspension set for added lateral stability and improved durability.

The ZT400 and ZT600 feature the InCommand console with keyless password protected ignition and SoftStart clutch for smoother clutch engagement.

Parker transmissions are compact, quiet, and 15% more efficient than other competitor transmissions, according to Toro. The company recommends 1,000-hour oil and filter change intervals.