Z602-E4B

Z602-E4B

GENERAL SPECIFICATION
Engine model Z602-E4B
Emission regulation EPA/CARB Tier 4 (NRTC/NTE test mode) + EU Stage V
Type Vertical, water cooled 4-cycle diesel engine
Cylinders 2
Bore and stroke mm (in) 72.0 x 73.6 (2.83 x 2.90)
Displacement L (cu.in) 0.599 (36.55)
Aspiration Naturally aspirated
Aftertreatment -
Rated output / speed*1 kW (HP) / rpm 12.5 (16.8) / 3600
Maximum torque / speed*1 Nm (lb-ft) / rpm 37.8 (27.9) / 2600
Combustion system Indirect injection
Fuel system In-line pump
Length x Width x Height*2
(without aftertreatment unit) mm (in) 351 x 401 x 544 (13.8 x 15.8 x 21.4)
Length x Width x Height*3
(with aftertreatment unit) mm (in) -
Dry weight kg (lb) 57 (120)
Specifications are subject to change without notice. Dimensions and dry weight are according to Kubota's standard specification.
Dimensions and weight depend on completed specifications.
1: SAE J1995 gross intermittent
*2: Exclude cooling fan and exclude aftertreatment unit
*3: Exclude cooling fan and include aftertreatment unit on engine

FEATURES & BENEFITS

Emissions
The Kubota Super Mini Series features compact multi-cylinder
liquid cooled industrial diesel engines which comply with EPA /
CARB Tier 4 emissions regulations.
Durable Power
The Kubota Z602 engine is a high-power density engine that delivers
maximum output using a 2-cylinder configuration.
By expanding the bore and stroke, Kubota has increased engine
displacement while maintaining the same footprint as the Z482
engine. The use of an extended shallow oil pan keeps the engine
height lower than that of the Z482, providing a compact engine
package.
The cooling water passages between the cylinder bores features
Kubota’s original casting technology as a countermeasure against
the heat load caused by high power density, providing both superior
endurance and reliable engine performance.
This engine offers a seamless transition from E3 to E4 by maintaining
the same level of performance and physical characteristics.
Clean and Quiet Power
Kubota’s original E-TVCS (Three Vortex Combustion System) has
been further improved for cleaner emissions. The piston recess
has been optimized to achieve lower particulate matter (PM)
levels at an extremely small size. The half-float valve cover and
MoS2-coated pistons reduce noise levels and decrease vibrations
transmitted from the valve area.
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