OverviewBuilding on the 400 Series, the Perkins 404J-E22TAG ElectropaK complies with EU Stage V and U.S. EPA Tier 4 Final. The ElectropaK is engineered for simplified integration into generator sets, reliable operation in regulated territories and consistent performance for prime and standby applications.
Key SpecsGross Mechanical Output: 38.1 - 49.6 kW
Typical Electrical Output: 40–50 kVA (32–40 kWe)
Emissions: EU Stage V, U.S. EPA Tier 4 Final
Rated Speed: 1500 / 1800 rpm
Features At A Glance- Compliance and performance: meets ISO 8528-5 Class G3 load acceptance; certified ElectropaK package for Stage V and Tier 4 Final mobile generator set applications.
- Integration and serviceability: engine-mounted aftertreatment with service-free DPF; factory-fitted wiring harness for simplified connection to genset loom; fuel filter with water-in-fuel sensor positioned for easy low-pressure fuel system installation.
- Operating economy: optimised fuel and oil consumption while meeting emissions limits, based on a proven core engine.
- Service intervals: standard 500-hour oil and fuel service intervals to minimise periodic maintenance costs.
- Support and warranty: supported by Perkins standard warranty with optional extended protection plans.
Standard Equipment (summary)- Air system: turbocharged, engine-mounted air filter.
- Electrical & electronics: chassis-mounted ECU; SAE J1939 CAN support; waterproof wiring harness, connectors and sensors; 12 V 85 A alternator; 12 V starter; glow plug starting aid.
- Flywheel & housing: available flywheel and housing options.
- Fuel system: electronic high-pressure common rail (2000 bar); fuel filter with water separator; electric fuel priming pump.
- General: cast iron engine block; block heater provision; fan guard; configurable automatic stop/alarm based on temperature and oil pressure.
50 Hz Typical Electrical Output (table)Prime: 40 kVA
Standby: 44 kVA
60 Hz Typical Electrical Output (table)Prime: 36 kWe
Standby: 40 kWe
ElectropaK Dimensions (table)Dry weight: 327 kg
Height: 985 mm
Length: 992 mm
Width: 602 mm
Aftertreatment & CoolingAftertreatment: DOC + DPF (engine-mounted)
Cooling system: liquid cooled
Technical specifications- Model / Commercial name: 404J-E22TAG
- Manufacturer / Brand: Perkins
- Number of cylinders: 4 inline
- Cycle: 4 stroke
- Bore: 84 mm
- Stroke: 100 mm
- Displacement: 2.2 L
- Compression ratio: 17.0:1
- Aspiration: Turbocharged aftercooled
- Combustion system: Direct injection
- Rotation from flywheel end: Anti-clockwise
- Aftertreatment: DOC + DPF (service-free DPF in ElectropaK configuration)
- Gross mechanical output: 38.1 - 49.6 kW
- Typical electrical output: 40–50 kVA (32–40 kWe)
- 50 Hz prime/standby: 40 kVA / 44 kVA
- 60 Hz prime/standby: 36 kWe / 40 kWe
- Rated speeds: 1500 / 1800 rpm
- Dry weight (ElectropaK): 327 kg
- ElectropaK dimensions (H×L×W): 985 mm × 992 mm × 602 mm
- Fuel system details: electronic 2000 bar common rail, fuel filter, water separator, electric priming pump
- Electrical: 12 V alternator (85 A), 12 V starter, chassis-mounted ECU, SAE J1939 CAN support
- Service intervals: 500 hour oil and fuel service intervals (standard)