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Kubota Engine

Kubota Engine

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D1803-M-DI-EU36

GENERAL SPECIFICATION

Engine model
D1803-M-DI-EU36
Emission regulation
EPA/CARB interim Tier 4 level + EU Stage IIIA
Type
Vertical, water cooled 4-cycle diesel engine
Cylinders
3
Bore and stroke
mm (in)
87.0 x 102.4 (3.43 x 4.031)
Displacement
L (cu.in)
1.826 (111.4)
Aspiration
Naturally aspirated
Aftertreatment
-
Rated output / speed*1
kW (HP) / rpm
23.4 (31.3) / 2300
Maximum torque / speed*1
Nm (lb-ft) / rpm
115.6 (85.3) / 1600
Combustion system
Direct injection
Fuel system
In-line pump
Length x Width x Height*2
(without aftertreatment unit)
mm (in)
551 x 495 x 684 (21.7 x 19.5 x 26.9)
Length x Width x Height*3
(with aftertreatment unit)
mm (in)
-
Dry weight
kg (lb)
151 (333)
  • 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

Photographs may show non-standard equipment.

DIMENSIONS

Dimensions and weight depend on composed specifications.

PERFORMANCE CURVES

FEATURES and BENEFITS

Emissions

The D1803-M engine complies with the EPA / CARB interim Tier
4 + EU Stage IIIA emissions regulations.

Durable Power

The Kubota 03-M Series is well known for its industrial applications.
With numerous features such as a built-in solenoid, low fan position,
and single-side serviceability, this engine provides excellent
performance and flexibility.
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.
The D1803-M engine offers a seamless transition from EPA Tier 2
to Interim Tier 4 by maintaining the same footprint and hardware
mounting points with minimal performance changes from Tier 2
engines.

Clean and Quiet Power

The fuel injection pressure has been increased to achieve lower
particulate matter (PM) levels.
The half-float valve cover and MoS2-coated pistons reduce noise
levels compared to conventional diesel engines and decrease
vibrations transmitted from the valve area, providing enhanced
noise reduction.

Option

Kubota 03-M Series engines offer side power take-off (PTO) in
response to the trend of the use of hydraulic control devices in
industrial machines. A hydraulic pump can be installed at the two
side PTO locations.
Indirect-Injection engines are also available.