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DCEC ISZ425-40 Automotive Engine

DCEC ISZ425-40 automotive engine is a 6-cylinders in line, 13 liter four-strokes engine with 130mm bore and 163mm stroke, equipped with Electrically Control High-pressure Common Rail, DCEC ISZ425-40 automotive engine comes with turbocharger and Air- Air intercooler, with a EURO VI post-processor. The prime power at 2100RPM of DCEC ISZ425-40 automotive engine is 425 HP.

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.

DCEC ISZ13 series electronic automotive engine can reach upto EU Stage VI emission standard, the number 30/40/50/60 are the emission standard mark of engine, which means engine emission standard are EU Stage III, IV, V, VI. For different emission standard DCEC ISZ13 electronic series automotive engine, the engine itself are the same, the major different are the after-treatment system and ECU program, EMAC will keep updating products introduction page of different emission standard version engines, welcome to subscribe our website to get latest update information.

If you are in need of engine model that not available on our website for the moment, please contact EMAC sales team for technical details and related documents, our well trained sales and engineering team will help you with all products and techical documents available here at DCEC.

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1.Lower oil consumptionExtended strokethe expansion of the combustion gas more fully, Increase effective efficiency output, the economy is better.
2.Strong poweradvanced 4 air valves structure, greater horsepower, air burning more thoroughly, while making low speed torque increase, quicken response speedily, climb strongly.
3.Excellent reliability, with compulsive cold cut articulated pistons, Can bear extreme high mechanical load and heat load, Strength can be comparable with heavy engine.
4.Better emissions, Decorate injector and symmetrical combustion chamber in center, make the cylinder is more homogeneous mixture, burning more fully, lower emissions.
5.Super life, 30% engines 800,000 km without overhaul.
6.Excellence power, Clean burning, use the advanced lean-burn closed loop electronic control system.
7.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

Basic Introduction of DCEC ISZ425-40 Automotive Engine

Engine Model:ISZ425-40
Engine Type:6
Displacement:13 L
Rated Speed:2100 RPM
Aspiration Method:Turbocharged & Air Intercooler
Emission Standard:N/A
Bore*Storke:130 mm * 163 mm
Packing Size(L*W*H):N/A
Wet Weight:1260 kg
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

Engine Model

Advertised Power

Peak Torque

Number Of Cylinders

 Fuel System

ISZ425-40A425 HP @ 2100 RPM1966 N.m @ 1600 RPM6 CylindersXPI Fuel System
ISZ425-40B425 HP @ 2100 RPM1966 N.m @ 1200 RPM 6 CylindersXPI Fuel System
ISZ425-41424 HP @ 2100 RPM2016 N.m @ 1000-1400 RPM 6 CylindersXPI Fuel System
ISZ450-40A456 HP @ 2100 RPM2237 N.m @ 1600 RPM 6 CylindersXPI Fuel System
ISZ450-40B450 HP @ 2100 RPM2237 N.m @ 1200 RPM6 CylindersXPI Fuel System
ISZ450-41450 HP @ 2100 RPM2338 N.m @ 1000-1300 RPM6 CylindersXPI Fuel System
ISZ460-51450 HP @ 2100 RPM2338 N.m @ 1000-1300 RPM6 CylindersXPI Fuel System
ISZ520-41450 HP @ 2100 RPM2338 N.m @ 1000-1300 RPM6 CylindersXPI Fuel System
ISZ525-40A525 HP @ 2100 RPM2509 N.m @ 1600 RPM6 CylindersXPI Fuel System
ISZ525-40B525 HP @ 2100 RPM2508 N.m @ 1200 RPM6 CylindersXPI Fuel System
ISZ525-40C525 HP @ 2100 RPM2508 N.m @ 1200 RPM6 CylindersXPI Fuel System

General Infomation of DCEC Cummins ISZ425-40 Automotive Engine

Engine ModelISZ425-40Advertised Power425 HP @ 2100 RPM
Peak Torque1966 N.m @ 1200 RPMCurve&DatasheetFR20239
Fuel SystemXPINo. Of Cylinders6
AspirationTurbocharged & Air-Air IntercoolerDisplacement13.0 L
Bore*Storke130 mm * 163 mmCPL Code Revision43354
Dry Weight1195 kgWet Weight1260 kg
Compression Ratio17:1

Installation Data of DCEC Cummins ISZ425-40 Automotive Engine

Center of Gravity. Distance From Front Face of Block519 mm
Center of Gravity. Distance Above Crank Centerline(Above Crankshaft)201 mm
Maximum Bending Moment At Rear Face of Block1356 N.m
Maximum Crankshaft Thrust Bearing load limit- Intermittent load9786 N
Maximum Crankshaft Thrust Bearing load limit-Continuous load4893 N
Instantaneous Inertia At Rotating: (Without Flywheel)N/A
Emissions CertificationGB 17691-2005
Idle Speed600 – 800 RPM
Maximum Non-Load Speed2300 RPM
Over Speed Performance (Within 15 Seconds)2625 RPM
The Clutch Torque @ 800Rpm1152 N.m
Maximum Altitude At Which Continuous operation Is Allowed5200 m
Supercharger outlet Exhaust Pressure limit ValueN/A
Maximum Power of Exhaust BrakeN/A

Engine Performance Data Rated power of DCEC ISZ425-40 Automotive Drive Engine

Engine Speed2100 RPM1600 RPM1200 RPMEngine Speed2100 RPM1600 RPM1200 RPM
Air to Turbo31.9 m³/min26.6 m³/min15.5 m³/minOil Pressure349 kPa303 kPa266 kPa
Exhaust Flow59.9 m³/min55.5 m³/min40.7 m³/minAir From Turbo216 kPa223 kPa145 kPa
Fuel Consumption67.1 kg/hr64 kg/hr48.5 kg/hrExhaust Temp379 ℃421 ℃524 ℃
Heat Rejection-Coolant119 kW111 kW99 kWCoolant Flow510 L/min390 L/min294 L/min
Friction Power58.0 kW29.0 kW25.0 kWHeat Rejection-AirN/AN/AN/A

System Technical Data of DCEC Cummins ISZ425-40 Automotive Drive Engine

Air Intake SystemMaximum Temperature Rise Between Ambient Air and Engine Air Inlet11.1 ℃
Maximum Intake Restriction with Dry Type Air Cleaner,with Clean Filter-Heavy Duty6.2 kPa
Maximum Intake Restriction with Dirty Filter2.5 kPa
Exhaust SystemMaximum Exhaust Resistance with Post-Treatment Device21 kPa
The ,Aximum Static Bending Moment That the Exhaust Flange Surface can Bear27 N.m
Usually Suitable Exhaust Pipe Diameter125 mm
Lubrication SystemMinimum oil pressure at idle89.6 kPa
Full lubrication system volume45.42 L
Maximum velocity of lubrication system7.57 L/min
Normal oil pressure range for heat engines207-345 kPa
Cooling SystemEngine coolant volume23.1 L
The thermostat adjusts the standard temperature82 ℃
Full opening temperature of thermostat94 ℃
Maximum Coolant Pressure (Without Pressure Cap, thermostat off)407 kPa
Maximum Coolant Temperature (Engine Outlet)102 ℃
Maximum Degassing Time25 mins
Maximum Coolant Flow to Accessories at 1700 RPM76 L
Minimum coolant temperature71 ℃
Minimum water addition rate19 litre/min
Maximum coolant expansion volume (percentage of cooling system capacity)10%
Minimum coolant expansion volume (percentage of cooling system capacity)6%
The minimum allowable cap pressure103 kPa
Normal operating temperature of a fan with a fan clutch95 ℃
Maximum intercooler resistance10.1 kPa
Coolant Alarm Temperature107℃
Temperature Difference Between the Output Water Temperature of 1600rpm Engine and the Environment60.6℃
Temperature Difference Between the Output Water Temperature of 1200rpm Engine and the Environment65.6℃
1600rpm Temperature Difference Between the Intercooler and the Environment23.9℃
Cold Starting SystemMinimum cold starting temperature without auxiliary starting device-15 ℃
Minimum cold starting temperature with auxiliary starting device-30 ℃
Fuel SystemMaximum Oil Inlet Resistance Of The Oil Transfer Pump With A Clean Filter13.5 kPa
Maximum Fuel Return Resistance27 kPa
Minimum Oil Discharge Capacity Of Fuel Tank0.2 m³/hr
Maximum Fuel Temperature (At The Fuel Pump Inlet)71 ℃
Maximum fuel heat dissipation5.36 kg/hr
Maximum fuel design flow rate204 kg/hr


Scopes of Supply of DCEC ISZ425-40 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 fuel 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 ISZ425-40 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

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Modifiable Components of DCEC ISZ425-40 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 Referenece, All Data Might Change Without Notices or Update, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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Sales Team

Marine Sales - Mrs. Hailey Tang

Automotive Sales - Mr. Wells Luo

Industrial Sales - Ms.Kitty Chen

Engine Parts-Mr.Nora Chen

Pump Sales - Ryen

Sales Director - Mr. Jasper Lee      

Service Team

Customer Service - Mrs. Wendy Fu

Ventas españolas - Victoria

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