Select Page

DCEC X12-C375-III Industrial Engine

DCEC X12-C375-III Industrial engine is a 6-cylinders in line, 11.8 liter four-strokes engine. Equipped with Electrically Control High-pressure Common Rail, engine comes with turbocharger.

The prime power at 1800 RPM of  DCEC X12-C375-III Industrial engine is 375 HP.

As part of EMAC, ConeMac provides industrial power pack solution that integrated with air intake, air exhaust, cooling system, control system, transmission and hydraulic accessories, We also supplying special products such as explosion proof engine, generator and water pump set, as well as ultra-low temperature condition engine power pack.

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 X12-C375-III Industrial Engine

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

  • High pressure common rail fuel system (HPCR), fuel injection pressure up to 1600bar, rapid throttle response at different speeds, more efficient power output, better fuel economy, and lower noise.

  • Mature intelligent electronic control technology improves the overall performance of the engine, and the engine specifications can be tailored according to the application needs, and the self-diagnosis and self-protection capabilities are stronger.

  • The filter system is redesigned for oil products, and the fuel is adaptable and suitable for applications in various fields.

  • Strong environmental adaptability, good cold start performance.

  • 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.

Technical Specifications

Engine Model:X12-C375-III
Displacement:11.8 L
Engine Type:6 Cylinders
Maximum low idle speed:1200 RPM
Rated Power / Speed:280 kW @ 1800 RPM
Peak Torque:1830 N-m (1350 lb-ft) @ 1400 RPM
Fuel System:XPI
Aspiration Method:Turbocharged CAC
Emission Standard:EU Stage V
Compression Ratio:17 : 1
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

Rated Power

Peak Torque

Fuel System


X12-C350-I350 HP @ 2100 RPM1830 N.m @ 1400 RPMXPITurbocharged CAC
X12-C350-II350 HP @ 1800 RPM1729 N.m @ 1400 RPMXPITurbocharged CAC
X12- C375-I375 HP @ 2100 RPM1966 N.m @ 1400 RPMXPITurbocharged CAC
X12- C375-II375 HP @ 1900 RPM1830 N.m @ 1400 RPMXPITurbocharged CAC
X12- C375-III375 HP @ 1800 RPM1830 N.m @ 1400 RPMXPITurbocharged CAC
X12-C400-I400 HP @ 2100 RPM2169 N.m @ 1400 RPMXPITurbocharged CAC
X12-C400-II400 HP @ 2100 RPM2034 N.m @ 1400 RPMXPITurbocharged CAC
X12-C400-III400 HP @ 1800 RPM2034 N.m @ 1400 RPMXPITurbocharged CAC
X12-C400-IV400 HP @ 2100 RPM1898 N.m @ 1400 RPMXPITurbocharged CAC
X12-C430-I430 HP @ 2100 RPM2300 N.m @ 1400 RPMXPITurbocharged CAC
X12-C430-II430 HP @ 1800 RPM2034 N.m  @ 1400 RPMXPITurbocharged CAC
X12-C435435 HP @ 1900 RPM2169 N.m @ 1400 RPMXPITurbocharged CAC
X12-C450450 HP @ 1800 RPM2169 N.m @ 1400 RPMXPITurbocharged CAC
X12-C460460 HP @ 2100 RPM2300 N.m @ 1400 RPMXPITurbocharged CAC
X12-C475475 HP @ 1800 RPM2169 N.m @ 1400 RPMXPITurbocharged CAC
X12-C500500 HP @ 1800 RPM2169 N.m @ 1400 RPMXPITurbocharged CAC
X12-C513513 HP @ 1900 RPM2300 N.m @ 1400 RPMXPITurbocharged CAC

General Infomation of DCEC X12-C375-III  Industrial Engine

Engine ModelX12- C375-IIICPL Code 4459
Curve & DatasheetFR21083Rated Power375 HP (280 kW) @ 1800 RPM
Compression Ratio17 :1Torque Peak1830 N-m (1350 lb-ft) @ 1400 RPM
Noise Emissions Top Side95.6 dB(A)Revision10-Jul-23
Noise Emissions Right Side101.4 dB(A)Displacement11.8 L (720 in3)
Noise Emissions Left Side101.0 dB(A)Fuel SystemXPI
Noise Emissions Front Side100.1 dB(A)Maximum low idle speed1200 RPM
Exhaust noise emissionsN/AMinimum low idle speed700 RPM
AspirationTurbocharged CACMinimum engine speed for full load sustained operation1400 RPM
ConfigurationD0S3002CX03Emission Certification CARB Tier 4(f), EU Stage V, US EPA Tier 4(f)

Engine Performance Data DCEC X12-C375-III Industrial Engine

Governed PowerMaximum PowerPeak Torque
Engine Speed1800 RPMN/A1400 RPM
Output Power375 HP280 kWN/AN/A360 HP268 kW
Torque1094 lb-ft1484 N-mN/AN/A1350 lb-ft1830 N-m
Friction Horsepower63 HP47 kWN/AN/A39 HP29 kW
Intake Manifold Pressure51 in-Hg172 kPaN/AN/A54 in-Hg184 kPa
Turbo Comp. Outlet Pressure52.7 in-Hg178.0 kPaN/AN/A55.8 in-Hg188.3 kPa
Turbo Comp. Outlet Temperature311 deg F155 deg CN/AN/A320 deg F160 deg C
Inlet Air Flow871 ft3/min411 L/sN/AN/A730 ft3/min345 L/s
Charge (Fresh Air) Flow 62.8 lb/min28.5 kg/minN/AN/A52.8 lb/min23.9 kg/min
Exhaust Gas Flow1637 ft3/min773 L/sN/AN/A1475 ft3/min696 L/s
Exhaust Gas Temperature812 deg F433 deg CN/AN/A850 deg F454 deg C
Heat Rejection to Coolant5287 BTU / min93.0 kWN/AN/A4642 BTU / min81.6 kW
Heat Rejection to Ambient1916 BTU / min33.7 kWN/AN/A1916 BTU / min33.7 kW
Heat Rejection to Exhaust12375 BTU / min217.6 kWN/AN/A11016 BTU / min193.7 kW


Torque Output

Power Output

Fuel Consumption

RPM lb-ft N-mRPM HPkWRPM lb/HP-hrg/kW-hr

System Technical Data of DCEC X12-C375-III Industrial Engine

Intake Air SystemMaximum allowable air temperature rise over ambient at intake manifold (naturally
aspirated engines) or turbo compressor inlet (turbo-charged engines): *This
parameter impacts emissions, LAT, and/or altitude capability
20.0 delta deg F11.1 delta deg C
Cooling SystemMaximum charge air cooler outlet to ambient at 25 deg C (77 deg F) (CAC dT)43.0 delta deg F23.9 delta deg C
Maximum CAC outlet temperature at less than or equal to 25 deg C (77 deg F)
120 deg F49 deg C
Maximum allowable pressure drop across charge air cooler and OEM CAC piping
4.0 in-Hg 13.5 kPa
Maximum coolant temperature for engine protection controls 218 deg F 103 deg C
Maximum coolant operating temperature at engine outlet (max. top tank temp) : 215 deg F102 deg C
Exhaust SyetemMaximum exhaust backpressure imposed by exhaust system (if DPF is present, the
limit is at soot level after regeneration or cleaning:
9.5 in-Hg30.4 kPa
Recommended exhaust pipe size (inner diameter): 5.0 in 127 mm
Lubrication SystemNominal operating oil pressure at minimum low idle 7.3 psi 50 kPa
Nominal operating oil pressure at maximum rated speed 42.0 psi290 kPa
Minimum engine oil pressure at minimum low idle (for engine protection devices) 5.0 psi 34 kPa
Fuel SystemFuel cooling requirements (with diesel fuel)  
The maximum heat rejection to return fuel at maximum coolant and inlet fuel temperature is 2.60 kW (148 BTU / min) at a fuel return flow
rate of 77 kg/hr (170 lb/hr) with a fuel return temperature of 128 deg C (263 deg F) prior to cooler.
Maximum supply fuel flow:342 lb/hr 155 kg/hr
Maximum return fuel flow:170 lb/hr77 kg/hr
Engine fuel compatibility (consult Service Bulletin #5411406 for appropriate use of
other fuels)
Maximum fuel inlet pressure 3 psi21 kPa
Performance DataMaximum low idle speed:1200 RPM
Minimum low idle speed:700 RPM
Minimum engine speed for full load sustained operation:1400 RPM
Maximum overspeed capability:2625 RPM
Maximum continuous power:280 kW(375 HP)
Maximum continuous speed:1900 RPM

Scopes of Supply of DCEC X12-C375-III Industrial Drive Engine

Cooling System1. Water PumpExhuast System1. Exhuast Manifold
2. Engine Fan2. Turbocharger
3. Standard Radiator3. Exhuast Elbow
Starting System1. Starter MotorFuel System1. Common rail Fuel system
2. Starter Rely2. Fuel Filter
Lubricating System1. Oil PumpPower Output System1. Flywheel
2. Oil Filter2. Standard Flywheel Housing
Air Intake System1. Air intake ManifoldCharging System1. Charging Alternator
Engine Mounting System1. Engine Mouting BracketEngine Auiliary Accessories1. Air compressor
Control System1. ECU & Sensors


Optional Accessories of DCEC X12-C375-III Industrial Drive 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
Engine Auiliary Accessories1. Hydraulic oil PumpControl System1. Can add engine monitoring system, contro system with wiring harness
2. Air Conditioner Compressor2. Can add self-protection system that integrated with alarm system
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. Remote starting Function6. N/A
7. Lock Protection Function of Starter Motor7. N/A
8. Manual Magnetic DC Contactor
Fuel System1. Coarse FilterLubricating System1. Oil pre-heater
Power Output System1. ClutchEngine Mounting System1. Shock Absorber pad


Committed to Providing Stable and Reliable Premiem Power System for Global Construction Machinery Manufacturer Partners, ConeMac is A Sub-Brand of the EMAC Group that Focuses on Construction Equipment Application.ConeMac’s Ranges of Products Mainly Inclduing Marine Construction Engines Power Pack, Construction Equipment Gearbox, Gear Reducer, Explosion-Proof Engines, Generator Set and Water Pump Set for Mining, Oil and Gas Field.For More Information of Our Industrial Power System Products, You Are Welcome to Visit ConeMac Homepage:

Modifiable components of DCEC X12-C375-III Industrial Drive Engine

Exhuast System1. Can Modify Installation Position and Direction of TurbochargerCharging System1. 12V Charging Alternator for 12V Electric System
2. N / A2. Explosion-proof Charging Alternator
3. Water-cooled Turbocharger3. Upgrading to Specified Brand and Speicifications of Charging Alternator
Power Output System1. Can Modify Size of Flywheel Housing and Flywheel.Lubricating System1. Oil Pan Position
2. Dual-ear Flywheel Housing (For Twin-Starter System)2. Number of Dipstick
3. Some of Models Can Modify Flywheel Housing Into PTO Integrated Type.3. Position of Dipstick Can Choose from 6 Positions
4. Engine Have Connecting Port of PTOs, That Able to Provide Power Output4. Can Modify Oil Filter to Be Remote Installation
Cooling System1. Can Modify Engine Fan Into Blower Fan Or Suction FanEngine Auiliary Accessories1. All of Auxiliary System Can Choose Specified Brands and Specifications
2. Can Modify Central Position of Engine Cooling Fan2. Additional Auxiliary Systems Can Be Added for Special Applications
3. Can Choose Type of Engine Fan from Mechanical Type or Electric Type3. N / A
Fuel System1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-hearterEngine Mounting System1. Can Modify Engine Mouting Bracket
Control System1. ECU Can Setting to Different Control Mode, Including CAN Communication, Analogue Control, ISC1,ISC2,ISC3 Speed Conrol Mode Etc


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 Service - SeaMacWhatApp-Icon

Automotive Service - DuraMacWhatApp-Icon

Industrial Service - ConeMacWhatApp-Icon

Generator Service -SinoGenWhatApp-Icon

Pump Service - PumpMacWhatApp-Icon

Parts Service - PartMacWhatApp-Icon

Sales Manager - Mrs. Wendy Fu

Sales Director - Mr. Jasper Lee       WhatApp-Icon

Shipping Service

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