Select Page

DCEC L300-20 Automotive Engine

DCEC L300-20 automotive engine is a 6-cylinders in line, 8.9 liter four-strokes engine with 114mm bore and 145mm stroke, equipped with Bosch P7100 pump and RQV-K governor. DCEC L300-20 automotive engine comes with turbocharger and Air-Air intercooler, with a EURO II post-processor.

The prime power at 2200RPM of DCEC L300-20 automotive engine is 300HP.

As part of EMAC, DuraMac provides complete powertrain that integrated with DCEC engine, Fast-Eaton clutch, FAST-CAT transmission, Dongfeng-DANA axle and Komman air suspension, while the electrification of automobile is the certain future, Duramac also get involved with EV powertrain system.

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 L300-20 Automotive Engine

  • Lower oil consumption,Extended stroke,the expansion of the combustion gas more fully, Increase effective efficiency output, the economy is better.

  • Strong power,advanced 4 air valves structure, greater horsepower, air burning more thoroughly, while making low speed torque increase, quicken response speedily, climb strongly.

  • Excellent reliability, with compulsive cold cut articulated pistons, Can bear extreme high mechanical load and heat load, Strength can be comparable with heavy engine.

  • Better emissions, Decorate injector and symmetrical combustion chamber in center, make the cylinder is more homogeneous mixture, burning more fully, lower emissions.

  • Super life, 30% engines 800,000 km without overhaul.

  • Excellence power, Clean burning, use the advanced lean-burn closed loop electronic control system.

  • Excellent cold start performance, equipped with air suction electric preheater and 7.8 kw power starter, completely improve the cold start performance of the engine. Through the arctic village-MoHe of China-36°C extreme low temperature validation.

Technical Specifications

Engine Model:L300-20
Engine Type:6
Displacement:8.9 L
Rated Speed:2200 RPM
Rated Power / Speed:224 kW @ 2200 RPM
Peak Torque:1180 N.m @ 1400 RPM
Fuel System:Bosch P7100 Pump / RQV-K
Aspiration Method:Turbocharged & Intercooler
Emission Standard:N/A
Bore*Storke:114 mm * 145 mm
Packing Size(L*W*H):N/A
Wet Weight:680 kg
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

Engine Model

Advertised Power

Peak Torque

Number Of Cylinders

Fuel System

L300-20300 HP @ 2200 RPM1180 N.m @ 1400 RPM6 CylindersBosch P7100 Pump
L325-20325 HP @ 2200 RPM1230 N.m @ 1400 RPM 6 CylindersBosch P7100 Pump
L340-20340 HP @ 2200 RPM1350 N.m @ 1400 RPM6 CylindersBosch P7100 Pump
L340-30340 HP @ 2200 RPM1350 N.m @ 1400 RPM6 CylindersWeifu PH Pump
L360-20360 HP @ 2200 RPM1480 N.m @ 1400 RPM6 CylindersBosch P7100 Pump
L360-30360 HP @ 2200 RPM1480 N.m @ 1400 RPM6 CylindersWeifu PH Pump
L375-30375 HP @ 2200 RPM1480 N.m @ 1400 RPM6 CylindersWeifu PH Pump

General Infomation of DCEC L300-20 Automotive Engine

Engine ModelL300-20Advertised Power300 HP @ 2200 RPM
Peak Torque1180 N.m @ 1400 RPMCurve & DatasheetFR 92013
Fuel SystemBosch P7100 Pump / RQV-KNo. Of Cylinders6
AspirationTurbocharged &  IntercoolerDisplacement8.9 L
Bore*Storke114 mm * 145 mmCPL Code Revision1480
Dry Weight 650 kgWet Weight 680 kg
Compression Ratio16.6:1

Installation Data of DCEC L300-20 Automotive Engine

Center of Gravity.Distance From Front Face of Block427 mm
Center of Gravity.Distance Above Crank Centerline(Above Crankshaft)163 mm
Maximum Bending Moment At Rear Face of Block1356 N.m
Maximum Crankshaft Thrust Bearing load limit- Intermittent load5338 N
Maximum Crankshaft Thrust Bearing load limit-Continuous load2670 N
Instantaneous Inertia At Rotating: (Without Flywheel) N/A
Emissions CertificationGB17691/GB14761
Idle Speed750±100 RPM
Maximum Non-Load Speed2500 RPM
Over Speed Performance (Within 15 Seconds)3500 RPM
The Clutch Torque @ 800Rpm780 N.m
Maximum Altitude At Which Continuous operation Is Allowed2000 m
Supercharger outlet Exhaust Pressure limit Value 450 kPa
Maximum Power of Exhaust Brake114 kW

Engine Performance Data Rated power of DCEC L300-20 Automotive Drive Engine

Rated PowerTorque PeakRated PowerTorque Peak
Engine Speed2200 RPM1400 RPMExhaust Temperature470 485 ℃
Oil Pressure426 kPa327 kPaFuel Consumption60 l/hr41.2 l/hr
The Air Flow20.3 m³/min10.8 m³/minCoolant Flow280 l/m175 l/m
The Flow Rate of Pressurized AirN/AN/AHeat Loss Coolant99.8 kW65.2 kW
Pressurized Air Pressure168 kPa130 kPaHeat Loss Air63 kW27 kW
The Exhaust Flow55 kg/hr34 kg/hrMechanical Loss of Power36.5 kW17 kW

Performance Curve-DCEC L300-20 Automotive Engine

System Technical Data of DCEC L300-20 Automotive Drive Engine

Air Intake SystemMaximum Temperature Rise Between Ambient Air and Engine Air Inlet15
Maximum Intake Restriction with Dry Type Air Cleaner,with Clean Filter-Medium Duty2.9 (300) kPa (mmH2O)
Maximum Intake Restriction with Dry Type Air Cleaner,with Clean Filter-Heavy Duty3.7 (380)kPa (mmH2O)
Maximum Intake Restriction with Dirty Filter6.2 (635)kPa (mmH2O)
Turbocharged & IntercooledMaximum Intake Manifold Temperature-Second Level55
Maximum Intake Manifold Temperature-Three-Level50
Intercooler Cooling Temperature-Second Level25
Intercooler Cooling Temperature-Three-Level20
Maximum Allowable Pressure Difference before and After Intercooling-Three-Level16.7 (125) kPa (mmHg)
Minimum Inlet Pipe Diameter Allowed-Three-Level65 mm
Exhaust SystemMaximum Back Pressure Imposed by Complete Exhaust System10.0 (75) kPa (mmHg)
Exhaust Pipe Size Normally Accepable75 mm
Maximum Static Bend Allowed for Turbocharger Exhaust FlangeN/A
Lubrication SystemLow oil Level Inclination Angle-Front UpN/A
Low oil Level Inclination Angle-Back UpN/A
Low oil Level Inclination Angle-Fuel Pump Side UpN/A
Low oil Level Inclination Angle-Exhaust Side UpN/A
Oil Sump Capacity-Upper Limit19 L
Oil Sump Capacity-Lower Limit15.2 L
Capacity of The Whole System23.6 L
Cooling SystemCoolant Capacity – Engine only12.3 L
Standard Thermostat (Modulating) Range83-95
Minimum Fill Rate ( Without Low Level Alarm)19 l/min
Minimum Coolant Expansion Space – % of System Capacity6%
Water Tank Capacity without Water Expansion6 L
Maximum Coolant Pressure (Without Pressure Cap, Thermostat Closed)280 kPa
Maximum Degassing Time25 mins
Maximum Coolant Flow to Accessories56 l/min
Maximum Coolant Temperature Engine out100
Minimum Allows Pressure of Pressure Cap50 kPa
Minimum Recommended Coolant Temperature70
Common Operating Temperature Range of Fans with Fan Clutch75-80
Maximum Coolent Temperature for Engine Protection Control100
The Limit Environmental Temperature at Rated SpeedSecond Level 55 ;Three-Level 50
The Limit Environmental Temperature at Peak TorqueSecond Level 25 ;Three-Level 20
24V Electrical SystemMaximum Allowable Resistance of Cranking Circuit0.002 Ω
The Cold Start Current When Engine and The Clutch Separate510 CCA
Cold Starting SystemMaximum Unaided Cold Start Temperature120 RPM -10  
Maximum Aided Cold Start Temperature110 RPM -25  
Fuel SystemMaximum Fuel Return Resistance520 (mmHg)
Maximum Inlet Resistance of oil Pump with Clean Filter150 (mmHg)

Scopes of Supply of DCEC L300-20 Automotive Engine

Air Intake System1. Air Intake ManifoldExhuast System1. Exhuast Manifold
2. Water-Air Intercooler2. Turbocharger
3. N/A3. Exhuast Elbow
Fuel System1. Fuel Transfer PumpStarting System1. Starter Motor
2. High-Pressure Fuel Pump2. Starter Rely
3. Fuel Filter3. N/A
Charging System1. Charging AlternatorEngine Shut-Down System1. Engine Puel Shut-Off Solenoid
Lubricating System1. Oil PumpCooling System1. Water Pump
2. Oil Filter2. Engine Fan
3. N/A3. Standard Radiator
Power Output System1. FlywheelEngine Mounting System1. Engine Mouting Bracket
2. Standard Flywheel Housing2. N/A
Engine Auiliary Accessories1. Air Compressor
2. Power Steering Pump

Optional Accessories of DCEC L300-20 Automotive Engine

Air Intake System1. Air Intake Pre-HeaterExhuast System1. Muffler & Bellows
2. Air Intake Shut-Off Valve2. Flame Trap
3. Air Filter3. Spark Arrestor Type Muffler & Bellows
4. Air Intake Pre-Filter4. DPF System
5. Air Filter Alarm System5. N/A
Fuel System1. Coarse FilterStarting System1.Manual Magnetic DC Contactor
2. Fuel Pre-Heater2. Dual Ears Flywheel Housing
3. N/A3. Spring Starter Motor
4. N/A4. Air Starter Motor
5. N/A5. Hydraulic Starter Motor
Lubricating System1. Oil Pre-Heater.Cooling System1. Silent Type Radiator
2. N/A2. Plateau Radiator
3. N/A3. Salt-Spray Resistant Radiator
4. N/A4. Coolant Pre-Heater
Power Output System1. ClutchEngine Mounting System1. Shock Absorber Pad
Engine Auiliary Accessories1. Hydraulic Oil PumpControl System1. Can Add Mechanical Accelerator Pedal
2. Air Conditioner Compressor2. N/A
3. N/A3. N/A

As part of EMAC, DuraMac is Committed to providing reliable powertrain system to commercial vehicle manufacturers around the world, a sub-brand of EMAC group that focusing on automotive application. Based on dozens of world-class engine manufacturing resources in China, and as official exporting agent of Fast tranmission (Joint venture with Caterpillar AT tranmission), Dongfeng Dana axle and Komman air suspension, DuraMac provides one-stop solutions covers from pre-design to components supply, from installation to commissioning, from pre-sales communication to after-sales service support. For more information of our automotive power system products, you are welcome to visit DuraMac homepage:

Modifiable Components of DCEC L300-20 Automotive Engine

Air Intake System1. Installation Position of Air FilterExhuast System1. Can Modify Installation Position and Direction of
2. Upgrade to  Heavy-Duty Type Air FitlerTurbocharger
3. N/A2. Water-Cooled Exhuast manifold
4. N/A3. Water-Cooled Turbocharger
Fuel System1. Upgrade to Fuel Fitler That Integrated with Fuel TransferStarting System1. 12V Starter Motor For 12v Electric System
Pump and Fuel Pre-Hearter2. Upgrading to Specified Brand and Speicifications of
2. N/AStarter Motor
Charging System1. 12V Charging Alternator for 12v Electric SystemEngine Shut-Down System1. 12V Solenoid for 12v Electric System
2. Explosion-Proof Charging Alternator2. Explosion-Proof Solenoid
3. Upgrading to Specified Brand And Speicifications of3. N/A
Charging Alternator4. N/A
Lubricating System1. Oil Pan PositionCooling System1. Can Modify Engine Fan Into Blower Fan or Suction Fan
2. Number of Dipstick2. Can Modify Central Position of Engine Cooling Fan
3. Position of Dipstick Can Choose From 6 Positions3. Can Choose Type of Engine Fan From Mechanical Type or
4. Can Modify Oil Filter to be Remote InstallationElectric Type
Power Output System1. Can Modify Size of Flywheel Housing and Flywheel.Engine Mounting System1. Can Modify Engine Mouting Bracket.
2. Dual-Ear Flywheel Housing (for Twin-Starter System)2. N/A
3. Some of Models Can Modify Flywheel Housing Into PTO3. N/A
Integrated Type.4. N/A
4. Engine Have Connecting Port of PTOs, That Able to5. N/A
Provide Power Output.6. N/A
Engine Auiliary Accessories1. All of Auxiliary System Can Choose Specified Brands and
2. Additional Auxiliary Systems Can be Added for Special

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.

WhatsApp Online logo

Sales Team

Marine Sales - Mrs. Gazit Wong WhatApp-Icon

Train Sales - Mrs. Gazit Wong WhatApp-Icon

Automotive Sales - Mrs. Shelly LiuWhatApp-Icon

Industrial Sales - Mrs. Kitty Chen WhatApp-Icon

Generator Sales - Mrs. Erica WhatApp-Icon

Pump Sales - Mrs. Ryen WhatApp-Icon

Spare Parts - Mrs. Nora Chen WhatApp-Icon

Sales Manager - Mrs. Wendy Fu

Ventas españolas - Victoria

Sales Director - Mr. Jasper Lee       WhatApp-Icon

Contact EMAC Now!

Subscribe To Our Newsletter

Subscribe To Our Newsletter

Subscribe to get the latest updates from

Welcome on board, we will keep you updated with latest news and business activities!

Pin It on Pinterest