Back to All Engines
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
D1503-M-E3B
Industrial

D1503-M-E3B

Vertical, water cooled 4-cycle diesel engine

Power:
31.9 HP / 2800 RPM
Emission Regulations:
EPA/CARB interim Tier 4 level + EU Stage IIIA
Contact Us Add to Compare

Features At A Glance

Emissions

The D1503-M engine complies with 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痴 original casting technology as a countermeasure against the heat load caused by high power density, providing both superior endurance and reliable engine performance. The D1503-M engine offers a seamless transition from EPA Tier 2 to EPA Interim Tier 4 by maintaining the same footprint and hardware mounting points with minimal performance changes from EPA Tier 2 engines.

Clean and Quiet Power

Kubota痴 original E-TVCS (Three Vortex Combustion System) has been improved. The airflow, combustion chamber, and piston recess have been optimized to provide low particulate matter (PM) levels, matching the stringent level of the 37 kW class and higher (EPA Interim Tier 4 Option 1). 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.

Options

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.

Specs & Compare

Compare Kubota Engines
Engine Model
D1503-M-E3B
D1503-M-E3B
Emission Regulations EPA/CARB interim Tier 4 level + EU Stage IIIA
Type Vertical, water cooled 4-cycle diesel engine
Cylinders 3
Bore and Stroke 3.27 x 3.64 in
Displacement 91.47 cu.in.
Aspiration Naturally aspirated
Aftertreatment -
Rated Output/Speed*1 31.9 HP / 2800 RPM
Maximum Torque/Speed*1 70.0 lb-ft / 1600 RPM
Combustion System Indirect injection
Fuel System In-line pump
Length × Width × Height**
(without after treatment unit)		 21.5 x 19.5 x 26.7 in
Length × Width × Height***
(with after treatment unit)		 -
Dry Weight 326 lbs

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

Compare This Engine

Series Lineup or Related Engines

D1703-M-E3B

D1703-M-E3B

Power:
35.0 HP / 2800 RPM
Emission Regulations:
  • EPA interim Tier 4 level
  • CARB interim Tier 4 level
  • EU Stage IIIA
View Details
D1803-M-DI-E3B

D1803-M-DI-E3B

Power:
37.4 HP / 2700 RPM
Emission Regulations:
  • EPA interim Tier 4 level
  • CARB interim Tier 4 level
  • EU Stage IIIA
View Details
D1803-M-E3B

D1803-M-E3B

Power:
37.4 HP / 2700 RPM
Emission Regulations:
  • EPA interim Tier 4 level
  • CARB interim Tier 4 level
  • EU Stage IIIA
View Details
V2003-M-E3B

V2003-M-E3B

Power:
43.7 HP / 2800 RPM
Emission Regulations:
  • EPA interim Tier 4 level
  • CARB interim Tier 4 level
  • EU Stage IIIA
View Details