D1503-M-E3B
- EPA interim Tier 4 level
- CARB interim Tier 4 level
- EU Stage IIIA
D1503-M-E3B
- EPA interim Tier 4 level
- CARB interim Tier 4 level
- EU Stage IIIA
Rated Power
23.8 kW @ 2800 rpm
Performance Curves
Features and Benefits
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’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 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’s 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.
Engine Specifications
| Engine model | D1503-M-E3B |
|---|---|
| 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) |
83.0 x 92.4 (3.27 x 3.64) |
| Displacement L (cu.in) |
1.499 (91.47) |
| Aspiration | Naturally aspirated |
| Aftertreatment | - |
| Rated output / speed*1 kW (HP) / rpm |
23.8 (31.9) / 2800 |
| Maximum torque / speed*1 Nm (lb-ft) / rpm |
94.9 (70.0) / 1600 |
| Combustion system | Indirect injection |
| Fuel system | In-line pump |
| Length x Width x Height*2 (without aftertreatment unit) mm (in) |
547 x 495 x 679 (21.5 x 19.5 x 26.7) |
| Length x Width x Height*3 (with aftertreatment unit) mm (in) |
- |
| Dry weight kg (lb) |
148 (326) |
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
Dimensions
Related Information
D1503 Lineup
Kubota 03 Series
D1803-M-E3B
Diesel
- 27.9 kW
- 37.4 HP
- @ 2700 rpm
- Emission:
-
- EPA/CARB interim Tier 4 level +
- EU Stage IIIA
V2203-M-E3B
Diesel
- 35.9 kW
- 48.1 HP
- @ 2800 rpm
- Emission:
-
- EPA/CARB interim Tier 4 level +
- EU Stage IIIA
D1803-M-DI-E3B
Diesel
- 27.9 kW
- 37.4 HP
- @ 2700 rpm
- Emission:
-
- EPA/CARB interim Tier 4 level +
- EU Stage IIIA
