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QSK50-G7 G-Drive Engine

CCEC QSK50-G7 (1500 RPM) Generator Drive Engine is V Type 16-Cylinder, 50.3 liters (3069 in3) Four-Strokes Engine with 159 mm (6.26 in) Bore and 159 mm (6.26 in) Stroke.

QSK50-G7 Generator Drive Engine Equipped with CMI MCRS Fuel System, Comes with Turbocharged and Aftercooled.The Standby Power for 50 Hz Generator Set (1500 RPM) of CCEC QSK50-G7 Generator Drive Engine is 2120 HP (1582 kW). The Prime Power for 50 Hz Generator Set (1500 RPM) of CCEC QSK50-G7 Generator Drive Engine is 1905 HP (1421 kW).The Continuous Power for 50 Hz Generator Set (1500 RPM) of CCEC QSK50-G7 Generator Drive Engine is 1680 HP (1253 kW).

As Part of EMAC, SinoGen Also Provide Complete Power Supply Solutions that Powered by CCEC, 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 CCEC QSK50-G7 G-Drive Engine

  •  High quality alloy cast iron for the rigidity performance and lower vibration and noise. Wet and replaceable cylinder liners for better heat rejection performance and easier replacement.

  • 4 valves per cylinder, Optimize the mixed level which lead to an excellent fuel consumption rate and emission performance. High quality alloy cast iron, one cylinder one head, single camshaft and special designed outine for better reliability and durability.

  • CMS unique PT with fixture and Step Timing control for precise fuel injection make the fuel injection pressure above 120 Mpa, which leads to an excellent fuel consumption rate and emission performance. Check valve in fuel tube improve reliability.

  • Gear water pump and great flux channel design provide effective cooling. Spin-in water filter makes the coolant clean and keeps it in normal acidity.

  • Advanced Holset turbocharger and after-cooled technology, pulse exhaust manifold reduce exhaust temperature, provide excellence fuel consumption and emission performance.

Technical Specifications

 Basic Introduction of CCEC QSK50-G7  G-Drive Engine

Engine Model:QSK50-G7
Engine Type:6-Cylinder ; Vee ; 4-Cycle
Displacement:50.3 L
Rated Power / Speed:1421 kW @ 1500 RPM
Aspiration Method:Turbocharged and Aftercooled
Emission Standard:U.S. EPA Tier 2, CARB Tier 2
Bore * Stroke:159 mm * 159 mm
Packing Size (L * W * H):2794 mm * 1507 mm * 1846 mm
Dry Weight:5410 kg
Lead Time:15-30 Working Days
Payment Terms:T / T ,L / C

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Engine Model

Prime Power



Performance Curve

Compression Ratio

QSK50-G71905 HP (1421 kW) at 1500 RPMTurbocharged and AftercooledD283039GX03FR – 683715.0 : 1

General Infomation of CCEC QSK50-G7 Generator Drive Engine

Engine ModelQSK50-G7ConfigurationD283039GX03
Prime Power1905 HP (1421 kW) at 1500 RPMCPL No.3625
Continuous Power1680 HP (1253 kW) at 1500 RPMCompression Ratio15.0 : 1
Standby Power2120 HP (1582 kW) at 1500 RPMFuel SystemCMS MCRS
Emission CertificatioU.S. EPA Tier 2, CARB Tier 2Displacement50.3 L (3,069 in3)
AspirationTurbocharged and AftercooledType6-Cylinder ; Vee ; 4-Cycle
Bore x Stroke6.26 in. * 6.26 in. / 159 mm * 159 mm

Installation Data of CCEC QSK50-G7 Generator Drive Engine

Dry Weight (Approximate)11,927 lb. / 5,410 kg
Wet Weight (Approximate)12,593 lb. / 5,712 kg
Moment of Inertia of Rotating Components -With FW 6066 Flywheel112 in·lbf·sec2 / 12.7 kg·m2
Center of Gravity from Rear Face of Block47.48 in. / 1,206 mm
Center of Gravity Above Crankshaft Centerline10.98 in. / 279 mm
Maximum Bending Moment at Rear Face of Block4,499 lb·ft / 6,100 N.m

Engine Performance Data 1500 RPM / 50 HZ of CCEC QSK50-G7 Generator Drive Engine

Standby PowerPrime PowerStandby PowerPrime Power
Governed Engine Speed1500 RPM1500 RPMExhaust Gas Flow10576 cfm / 4991 L/s9671 cfm / 4564 L/s
Engine Idle Speed700 – 900 RPM700 – 900 RPMAir to Fuel Ratio -air : fuel25.5 : 126.5 : 1
Gross Engine Power Output 2120 HP / 1581 kW 1905 HP / 1421 kWRadiated Heat to Ambient8693 BTU/min / 153 kW7793 BTU/min / 137 kW
Brake Mean Effective Pressure 365 psi / 2515 kpa328 psi / 2260 kpaHeat Rejection to Jacket Coolant32216 BTU/min / 566 kW29879 BTU/min / 525 kW
Piston Speed 1875 ft/min / 9.5 m/s1562 ft/min / 7.9 m/sHeat Rejection to Exhaust64961 BTU/min / 1142 kW57643 BTU/min / 1014 kW
Friction Horsepower235 HP / 175 kW235 HP / 175 kWHeat Rejected to *Fuel475 BTU/min / 8.4 kW475 BTU/min / 8.4 kW
4 psi Friction Head448 gpm / 1695 L/min448 gpm / 1695 L/minHeat Rejection to Aftercooler Coolant21052 BTU/min / 370 kW18229 BTU/min / 321 kW
Maximum Friction Head 416 gpm / 1574 L/min416 gpm / 1574 L/min2 psi Friction Head123 gpm / 466 L/min123 gpm / 466 L/min
Intake Air Flow4234 cfm / 1998 L/s3944 cfm / 1861 L/sMaximum Friction Head121 gpm / 458 L/min121 gpm / 458 L/min
Exhaust Gas Temperature – Dry Stack928 °F / 498 °C893 °F / 478 °C

Performance Curve CCEC QSK50 G-Drive Engine

System Technical Data of CCEC QSK50-G7 Generator Engine

Exhaust SystemMaximum Back Pressure at Standby Power2 in.Hg / 6.8 kPa
Air Induction SystemMaximum Allowable Intake Air Restriction With Dirty Filter Element25 in.H2O / 6.2 kPa
Maximum Allowable Intake Air Restriction With Normal Duty Air Cleaner and Clean Filter Element15 in.H2O / 3.7 kPa
COOLING SYSTEMCoolant Capacity – Engine Only148 quarts / 140.1 litre
Minimum Pressure Cap Rating at Sea Level14 PSI / 97 kPa
Maximum Static Head of Coolant Above Crankshaft Centerline60 ft. / 18.3 m
Maximum Top Tank Temperature (Maximum Top Tank Temp) for Standby Power/Prime Power220 /212 °F / 104/100 °C
Thermostat (Modulating) Range180 – 200 °F / 82 – 93 °C
Lubrication SystemOil Pressure @ Minimum Idle Speed20 PSI / 138 kPa
Oil Pressure @ Governed Speed50 – 70 PSI / 350 – 485 kPa
Maximum Oil Temperature250 °F / 121 °C
Oil Capacity with OP 6100 Oil Pan : Low – High 46 – 54 U.S. Gal / 174.1 -204.4 liter
Total System Capacity (with Combo Filter)62 U.S. gal / 234.7 L
Fuel SystemType Injection SystemCMS
Maximum Fuel Supply Restriction at Fuel Pump Inlet (clean/dirty filter)5 / 9 in Hg / 16.9 / 30 kPa
Maximum Allowable Head on Injector Return Line (Consisting of Friction Head and Static Head)10 in Hg / 34 kPa
Maximum Fuel Inlet Temperature160 °F / 71 °C
Maximum Supply Fuel Flow – 1500 RPM222 US gph / 840 litre/hr
Maximum Return Fuel Flow – 1500 RPM116 US gph / 439 litre/hr
ELECTRICAL SYSTEMSystem Voltage24 volt
Minimum Recommended Battery Capacity @ Cold Soak at 50 (10 ) and Above1800 CCA
Minimum Recommended Battery Capacity @ Cold Soak at 32 -50 (0 -10 )1800 CCA
Minimum Recommended Battery Capacity @ Cold Soak at 0 -32 (-18 -0 1800 CCA
Maximum Starting Circuit Resistance0.002 Ohm
Cold Start CapabilityUnaided Cold Start –Minimum Cranking Speed150 RPM
Unaided Cold Start –Minimum Ambient Temp for Unaided Cold Start7.2 °C / 45 °F

Scopes of Supply of CCEC QSK50-G7 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 CCEC QSK50-G7 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 QSK50-G7 Generator Drive Engine

Air Intake System1. Installation Position of Air FilterCharging System1. 12 V Charging Alternator for 12 V 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. 12 V Starter Motor for 12 V Electric System
Engine Shut-Down System1. 12 V Solenoid for 12 V 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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