403D-15T Industrial Diesel Engine

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The Perkins 400 Series is an extensive family of engines in the 0.5-2.2 litre range. The 3 cylinder 403-15 model is the mid-range 400 Series engine, combining performance, low operating costs and a compact package. From a packaging point of view, the 403-15 is the ideal engine for small industrial applications. Its simple, robust mechanical fuel system makes it easy to install and maintain.


1.5 litre, 3 cylinder

23.1-30 kW (31-40.2 hp)

Designed to meet EU Stage IIIA/U.S. EPA Tier 4 Interim equivalent emission standards

A 3 cylinder, turbocharged engine offering increased power with minimal impact on package size

Power Rating

Minimum Power 31.0 HP 23.1 kW Less
Maximum Power 40.2 HP 30.0 kW Less
Rated Speed 2200-3000 rpm 2200-3000 rpm Less
Maximum Torque 82.5 lb-ft @ 1800 rpm 111.9 Nm @ 1800 rpm Less

Emission Standards

Emissions EU Stage IIIA/U.S. EPA Tier 4 Interim equivalent EU Stage IIIA/U.S. EPA Tier 4 Interim equivalent Less


Bore 3.3 in 84.0 mm Less
Stroke 3.5 in 90.0 mm Less
Displacement 91.0 in³ 1.5 l Less
Aspiration Turbocharged Turbocharged Less
Rotation from Flywheel End Anti-clockwise Anti-clockwise Less
Combustion System Indirect injection Indirect injection Less
Number of Cylinders 3 inline 3 inline Less
Cycle 4 stroke 4 stroke Less
Compression Ratio 22.5:1 22.5:1 Less
Cooling System Liquid Liquid Less

Engine Dimensions*

Dry Weight 345.0 lb 156.5 kg Less
Length 22.5 in 572.0 mm Less
Height 25.3 in 643.0 mm Less
Width 20.3 in 512.0 mm Less


Note 1 *Final dimensions dependent on selected options *Final dimensions dependent on selected options Less

A lifetime of low cost

The 400 Series offers highly competitive performance and fuel economy. Through appropriate use of technology, these engines have been designed to be reliable and to offer low cost of ownership in the wide variety of markets they serve.

Across an extensive power band, the 400 Series range offers you the ability to configure a solution to your specific machine, territory and market requirements. Overlapping power bands between models and an extensive range of options gives the opportunity to optimise performance and functionality.

We provide one year warranties for constant speed engines and two year warranties for variable speed models as standard.

As a 400 Series end user, you also benefit from Perkins world class product support and service coverage that comes from being a full range power solutions provider.

Compact design

The compact design of these engines makes them suitable for a range of applications, including skid steer loaders, mini excavators, wheel loaders, welders, lift platforms, lighting towers, small tractors, air compressors, turf care machinery and materials handling machinery.

Each of the six core engines of the 400 Series is configured for either Stage IIIA/Tier 4 Interim or Stage IIIB/Tier 4 Final emission standards, giving you flexibility depending on your market.

Performance and refinement

The 400 Series lineup gives you a seamless power range of 8.2-50 kW (11-67 hp) in 2, 3 and 4 cylinder models designed with a family look and feel. The range offers a wide variety of ratings and configurations that can be tailored to meet the most exacting needs.

The selective use of indirect and direct injection fuel systems enables Perkins to offer world-class engine refinement and low noise levels.

403D-15T Industrial Diesel Engine Standard Equipment

Air inlet system
  • Cast iron exhaust manifold - side outlet
  • Inlet manifold

Control system
  • 12 and 24 volt alternator
  • 12 and 24 volt starter motor
  • Engine shut-off solenoid

Cooling system
  • Coolant pump belt driven
  • Coolant temperature switch
  • Cooling fan, high and low fan position

Fuel system
  • CTD Fuel injection pump
  • Spin-on fuel filter

  • Cast iron engine block
  • Glow plug starting aid
  • Cold start capability to –20°C (-4°F) (aided)

Oil system
  • Lubricating oil pressure switch
  • Lubricating oil sump
  • Spin-on lubricating oil filter

Power take-off