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Kubota Zb600 Engine Specifications

Updated April 17, 2017

The Kubota ZB 600 engine is used as a generator and to power small and midsized industrial equipment, such as the people-moving “cherry picker.” Kubota builds compact diesel and gas engines and generators, internationally, for industry and agriculture.

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The ZB 600 is a liquid-cooled, four-cycle diesel engine with two cylinders. The engine has a bore and stroke of 2.83 by 2.76 inches and a total displacement of 34.78 cubic inches.

The gross intermittent power output is 10.3 kilowatts per 3,200rpm, equal to 13.8 horsepower. The engine’s net intermittent output is 9.3kW per 3,200rpm, or 12.5 horsepower. The net continuous output is 8.2kW per 3,200rpm, or 11 horsepower.


The Kubota ZB 600 engine is built into a series of Grove Manlifts, AMZ36E through AMZ51E. The vehicles are midsized, industrial cherry pickers used to lift a worker in a basket, on the end of a boom lift. The ZB 600 is also used in the Upright AB46, another cherry picker with a boom reach to the working height of 52 feet, 4 inches.


The ZB 600 engine uses a VSF5 valve stem seal, which meters oil below the seal to lubricate the valve train. The sizes are 8 by 10.8mm and 14.2 by 104mm. The rear crankshaft oil seal is a ST017, with dimensions of 85 by 131mm and 152 by 15.7mm.

The engine’s Aerospace Standard 568 O-ring has a 15.54mm inside diameter (ID) and a 2.62 by 2.62mm cross-section (C/S4). The high-temperature resistance range for the O-ring, model AS114, is -30 degrees Celsius, to 100 degrees Celsius. The O-ring is a gasket that creates a seal at the interface at two parts.

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About the Author

Based in New York City, Sara Harvey has written about the environment, city planning, health and lifestyles since 1994. A former newspaper reporter, she now writes freelance full time. Her work has appeared in "Boho," a New York-based green fashion magazine, and several humor, parenting and business publications. Harvey has a bachelor's degree in print journalism.

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