403D-15 Industrial Open Power Unit

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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

18.4-25.1 kW (24.7-33.7 hp)

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

A 1.5 litre IOPU offering you the advantages of an industrial engine, with the convenience of a cost effective cooling and filtration solution

Power Rating

Minimum Power 27.9 HP 20.8 kW Less
Maximum Power 32.5 HP 24.2 kW Less
Maximum Torque 69.6 lb-ft @ 1800 rpm 94.4 Nm @ 1800 rpm Less
Rated Speed 2800-3000 rpm 2800-3000 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 Naturally aspirated Naturally aspirated Less
Rotation from Flywheel End Anti-clockwise Anti-clockwise Less
Combustion System Indirect injection Indirect injection Less
Compression Ratio 22.5:1 22.5:1 Less
Cooling System Liquid Liquid Less
Cycle 4 stroke 4 stroke Less
Number of Cylinders 3 inline 3 inline Less
Total Coolant Capacity 1.6 gal (US) 6.0 l Less
Total Lubricating Capacity 1.6 gal (US) 6.0 l Less

Engine Dimensions*

Dry Weight 434.0 lb 197.0 kg Less
Height 31.2 in 793.0 mm Less
Length 32.3 in 820.0 mm Less
Width 19.6 in 497.0 mm Less