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The Perkins 404 range of electric power (EP) engines is the largest, most refined member of the 400 Series. The 4 cylinder, 2.2 litre 404 offers improvements such as reduced noise, vibration and harshness (NVH). Offering the same customer benefits as the wider 400 family – such as reliability, cold-start capability, low operating costs, excellent fuel economy and compact, clever design – the 404 makes a smart choice for customers in the generator set market across unregulated and EU Stage IIIA/U.S. EPA Tier4 interim territories.


2.2 litre

37-40 kVA

The 404D-22TAG ElectropaK is a powerful but quiet 2.2 litre turbocharged aftercooled 4 cylinder compact package. It's designed to meet EU Stage IIIA/U.S. EPA Tier 4 interim emissions standards.

Power Rating

Mechanical Output** 32-36 kWm 32-36 kWm Less
Electrical Output** 37-40 kVA (29-32 kWe) 37-40 kVA (29-32 kWe) Less
Rated Speed 1800 rpm 1800 rpm Less

Emission Standards

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


Bore 3.3 in 84.0 mm Less
Stroke 3.9 in 100.0 mm Less
Displacement 135.2 in³ 2.2 l Less
Aspiration Turbocharged aftercooled Turbocharged aftercooled Less
Rotation from Flywheel End Anti-clockwise Anti-clockwise Less
Total Coolant Capacity 2.4 gal (US) 9.3 l Less
Combustion System Indirect injection Indirect injection Less
Compression Ratio 23.3:1 23.3:1 Less
Total Lubricating Capacity 2.8 gal (US) 10.6 l Less
Cooling System Liquid Liquid Less
Cycle 4 stroke 4 stroke Less
Number of Cylinders 4 inline 4 inline Less

Engine Dimensions*

Dry Weight 675.0 lb 306.0 kg Less
Width 27.9 in 709.0 mm Less
Length 41.3 in 1050.0 mm Less
Height 39.3 in 997.5 mm Less


Note 2 ESE (1800 rpm) only - Emergency Stationary Equipment ESE (1800 rpm) only - Emergency Stationary Equipment Less
Note 1 Final dimensions dependent on selected options Final dimensions dependent on selected options Less

A life-time of low cost

Reliability, superb fuel economy, ease of installation and trusted components all combine to keep your cost of ownership to a minimum. Cost-saving aftertreatment options are also available.

Powerful, quiet and refined

The 404 range of engines give 20-40 kVA generator output, along with the extra refinement and noise reduction that 4 cylinder engines provide. Its power density, durability, fuel efficiency and quiet operation set it apart from similar sized competitors' engines. The 404 range's quiet operation makes it an excellent option where noise is a concern, particularly if you're operating in urban areas.

404D-22TAG Standard Equipment

Air inlet system
  • Mounted air filter

Control system
  • 12 volt starter motor and 12 volt 65 amp alternator with DC output
  • Electronic Shut Off Solenoid (ESOS) 12 volt energised to run

Cooling system
  • Coolant temperature switch
  • Mounted radiator, piping and guards
  • Thermostatically controlled system with belt driven coolant pump and pusher fan

Flywheels and flywheel housing
  • 1800 rev/min
  • Flywheel housing SAE 4 long
  • High inertia flywheel to SAE J620 size 7½ heavy

Fuel system
  • Electronically governed cassette type fuel injection pump
  • Split element fuel filter

  • Front and rear engine mounting bracket
  • Glow plug cold start aid and heater/starter switch

Oil system
  • Oil pressure switch
  • Spin-on full flow lubricating oil filter
  • Wet steel sump with filler and dipstick