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4DX Engine
4DX Engine 
4DX Engine
4DX Engine
Engine model 4DX21-45D 4DX22-50D 4DX23-65D
Type in line 4-cylinder 4-stroke
Air intake type Natural Turbocharged Turbo&intercooling
Cooling mode Water cooling
Governor mode Mechanical or electronic
Bore x Stroke (mm) 102x118
Compression ratio 17.1
Rated speed (rpm) 1500
Displacement (L) 3.86
Prime power(without fan) (kW) 33 37 48
Standby power(without fan) (kW) 36 41 53
Fuel consumption (g/kWh) 230 220 215
Oil consumption (L/h) 0.06 0.05 0.05
Steady state speed regulation (%) ≤5 ≤5 ≤5
Oil capacity including filter (L) 12.5 13 13
Emission Stage ||
The flywheel shell interface SAE3
Flywheel for 11.5" flexible coupling
Dry weight of base (kg) 350 380 380
Dry weight of Gen Pac (kg) 375 405 410
Overall dimension(base) (mm) 810x680x800 810x700x850
Overall dimension(G.P) (mm) 115x680x835 1480x705x900
Fan consumption (kW) 2 2.5 3
27°C air consumption (m³/min) 2.6 3.2 3.9
Heat rejection of exhaust (kW) 34.5 36.4 43.5
Exhaust gas temperature after turbine (°C) 580 480 480
Exhaust gas flow (m³/min) 8.3 8.4 10.4
Heat rejection from engine (kW) 2 2.6 3.3
Heat rejection of coolant (kW) 21.5 24.1 29
Base configuration Standard configuration (add on the base)
Engine with fan Intake and exhaust system:
Air filter and connecting pipes;
Alternator 35A 28V Connecting flang of exhaust pipe
 Starter motor 4.5kW 24V Cooling system: Radiator with connecting pipes;
Fan guard; Belt guard

 

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Manufacturer's names, numbers, symbols, photos and descriptions are used for reference purposes only and it is not implied that the parts referred to are the products of those manufacturers