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DCEC QSB4.5-G1 G-Drive Engine

DCEC QSB4.5-G1 generator drive engine is a 4-cylinders in line, 4.5 liter four-strokes engine with 107mm bore and 124mm stroke.

Equipped with Electrically Control High-pressure Common Rail, engine comes with turbocharger and Air- Air Intercooler.

The prime power for 50HZ generator set (1500RPM) of DCEC QSB4.5-G1 generator drive engine is 98kW.

As part of EMAC, SinoGen also provide complete power supply solutions that powered by DCEC, our ranges of products including open type generator set, silence type generator set, super silence type generator set, mobile trailer, complete power truck and complete power car for railways applications.

We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from trouble shooting to overhaul technical support.

Advantages of DCEC QSB4.5-G1 G-Drive Engine

  • Advanced design and sophisticated manufacturing, adapt to various harsh working conditions, high strength, strong ability to work under heavy loads.

  • The five key systems of the engine are developed and optimized and integrated by CMS to ensure the reliability of the engine.

  • The overall modular design, the total number of parts is small, the failure rate is low, the structure is compact, and the maintenance is easy.

  • Use water-controlled intercooler to control the temperature and turbocharged air suction method for more choices.

Technical Specifications

Engine Model:QSB4.5-G1
Engine Type:4 Cylinders
Displacement:4.5 L
Rated Speed:1500 RPM
Rated Power / Speed:206 kW @ 1500 RPM
Fuel System:Bosch Electronic
Cooling System:N/A
Aspiration Method:Turbocharged & Air-Air Intercooler
Emission Standard:N/A
Bore*Storke:107 mm * 124 mm
Packing Size(L*W*H):N/A
Wet Weight:N/A
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

coming soon

coming soon

Engine Model

Standby Power

Prime Power

Fuel System


QSB4.5-G1226 kW @ 1500 RPM206 kW @ 1500 RPMBosch ElectronicTurbocharged & Air-Air Intercooler


General Infomation of DCEC QSB4.5-G1 Generator Drive Engine

Engine ModelQSB4.5-G1Displacement275 in3 (4.5 L)
Compression Ratio17.2:1Bore*Storke107 mm * 124 mm
No. of Cylinders4Governor Regulation≤3%
AspirationTurbocharged & Air-Air IntercoolerCPL Code Revision8725
Net weightN/ANet qualityN/A

Engine Performance Data 1500RPM/50HZ of DCEC QSB4.5-G1 Generator Drive Engine

Rated PowerMaximum PowerTorque Peak
Engine Speed2400 RPM2200 RPM1500 RPM
OutPut Power160 HP119 kW165 hp123 kW131 hp98 kW
Torque350 lb-ft475 N-m394 lb-ft534 N-m460 lb-ft624 N-m
Friction Horsepower28 hp21 kW24 hp18 kW12 hp9 kW
Turbo Comp. Outlet Pressure54 in-Hg183 kPa55 in-Hg185 kPa49 in-Hg165 kPa
Turbo Comp. Outlet Temperature363 deg F184 deg C361 deg F183 deg C343 deg F173 deg C
Inlet Air Flow400 ft3/min189 L/s379 ft3/min179 L/s256 ft3/min121 L/s
Exhaust Gas Flow958 ft3/min452 L/s926 ft3/min437 L/s678 ft3/min320 L/s
Exhaust Gas Temperature912 deg F489 deg C932 deg F500 deg C966 deg F519 deg C
Maximum Fuel Flow to Pump315 lb/hr143 kg/hr291 lb/hr132 kg/hr209 lb/hr95 kg/hr
Heat Rejection to Coolant3475 BTU/min61 kW3344 BTU/min59 kW2616 BTU/min46 kW
Heat Rejection to Fuel114 BTU/min2 kW97 BTU/min2 kW45 BTU/min1 kW
Heat Rejection to Ambient1166 BTU/min20 kW1228 BTU/min22 kW916 BTU/min16 kW
Heat Rejection to Exhaust6557 BTU/min115 kW6369 BTU/min112 kW4532 BTU/min80 kW
Steady State Smoke0.8 Bosch0.6 Bosch0.7 Bosch

System Technical Data of DCEC QSB4.5-G1 Generator Drive Engine

Exhaust SystemMaximum exhaust back pressure10 (3) kPa (in-Hg)
Recommended exhaust piping size (inner diameter)75 (2.95) mm(in)
Air Intake SystemMaximum allowable air temperature rise over ambient at Intake Manifold  or Turbo Compressor inlet17 delta deg F delta deg C
LubricationSystemNominal operating oil pressure — minimum low idle69 (10) kPa (psi)
Nominal operating oil pressure — maximum rated speed380 (55.1) kPa (psi)
Minimum engine oil pressure for engine protection devices — minimum low idle52 (7.5) kPa (psi)
Charge Air Cooling SystemMaximum intake manifold temperature at 25 deg C (77 F) ambient60 (140) deg C (deg F )
Maximum allowable pressure drop across charge air cooler and OEM CAC piping(IMPD):14 (4)  kPa ( in-Hg )
Maximum Intake Manifold Temperature Differential (Ambient to IMT) (IMTD)35 delta deg F delta deg C
Intake manifold temperature for Fan-ON40 (109) deg C (deg F )
Maximum coolant temperature for engine protection controls114 (237) deg C (deg F )
Maximum coolant operating temperature at engine outlet (max. top tank temp)107 (225) deg C (deg F )

Scopes of Supply of DCEC QSB4.5-G1 Generator Drive Engine

Air Intake System1. Air Intake ManifoldExhuast System1. Exhuast Manifold
2. Standard Air Filter2. Turbocharger
3. Water-Air Intercooler3. Exhuast Elbow
Starting System1. Starter MotorCharging System1. Charging Alternator
2. Starter Rely2. N/A
Lubricating System1. Oil PumpCooling System1. Water Pump
2. Oil Filter2. Engine Fan
3. N/A3. Standard Radiator
Engine Shut-Down System1. Engine Fuel Shut-Off SolenoidPower Output System1. Flywheel
2. N/A2. Standard Flywheel Housing
Fuel System1. Fuel Transfer Pump
2. High-Pressure Fuel Pump
3. Fuel Filter

Optional Accessories of DCEC QSB4.5-G1 Generator Drive Engine

Air Intake System1. Air Intake Pre-HeaterExhuast System1. Muffler & Bellows
2. Air Intake Shut-Off Valve2. Spark Arrestor Type Muffler & Bellows
3. Heavy-Duty Air Filter3. DPF System
4. Plateau Type Air Filter4. N/A
Fuel System1. Coarse FilterLubricating System1. Oil Pre-Heater
2. Fuel Pre-Heater2. N/A
Starting System1. Manual Magnetic DC ContactorCooling System1. Silent Type Radiator
2. Dual Ears Flywheel Housing2. Plateau Radiator
3. Spring Starter Motor3. Salt-Spray Resistant Radiator
4. Air Starter Motor4. Coolant Pre-Heater
5. Hydraulic Starter Motor5. Jacket Water Heater
6. Manual Magnetic DC Contactor6. N/A


As part of EMAC, SinoGen focusing on generator set related business, from Generator drive engine power pack to complete generator set, from generator control panel to synchronizing cabinet, from super silent type generator set to mobile power trailer, SinoGen provides professional one-stop solution for everything customer needed for generator set.
For more information of our complete generator set products, you are welcome to visit SinoGen homepage:

Modifiable components of DCEC QSB4.5-G1 Generator Drive Engine

Air Intake System1. Installation Position of Air FilterCharging System1. 12V Charging Alternator for 12V Electric System
2. Upgrade to Heavy-Duty Type Air Fitler2. Explosion-Proof Charging Alternator
Exhuast System1. Position of TurbochargerLubricating System1. Oil Pan Position
2. Water-Cooled Exhuast Manifold2. Number of Dipstick
3. Water-Cooled Turbocharger3. Position of Dipstick
Fuel System1. Upgrade to Fuel Fitler that Integrated with Fuel Transfer PumpStarting System1. 12V Starter Motor for 12V Electric System
Engine Shut-Down System1. 12V Solenoid for 12V Electric SystemPower Output System1. Size of Flywheel Housing and Flywheel.
2. Explosion-Proof Solenoid2. Dual-Ear Flywheel Housing (For Twin-Starter System)

Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

The picture of Sale Manual showing the accessories and scopes of supply.

Engine Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

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