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DCEC 4BT3.9 Industrial Engine

DCEC 4BT3.9 series Industrial engine is a 4-cylinders in line, 3.9 liter four-strokes engine with 102mm bore and 120mm stroke. DCEC 4BT3.9 series Industrial engine equipped with Weifu (or BYC) fuel pump. The prime power range of is 80 HP to 130 HP.
To achieve different output, DCEC 4BT3.9 series Industrial engine have three configurations which are turbocharged engine, turbocharge with water-air intercooler, turbocharge with air-air intercooler. In the detailed model name, code T means engine come with turbocharger, code single A means engine comes with water-air intercooler, and code double A means engine comes with air-air intercooler. 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.
DCEC 4BT3.9 series electronic industrial engine can reach upto EU Stage V emission standard, the number 30/40/50 are the emission standard mark of engine, which means engine emission standard are EU Stage III, IV, V. For different emission standard DCEC 4BT3.9 series electronic industrial engine, the engine itself are the same, the major different of different emission standard engine models are the after-treatment system and ECU program, EMAC will keep updating products introduction page of different emission standard engine models, 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.

Advantages of 4BT3.9 Industrial Engine

1. Using forged steel camshaft and crankshaft, high-strength cylinder block design, multiple parts cast on the cylinder block, high rigidity, high pressure resistance, good reliability, and longer service life.
2. The cylinder bore adopts a platform mesh honing design; the perfect geometric structure effectively prevents oil leakage.
3. The cylinder block and cylinder head adopt integrated design, which eliminates the occurrence of engine water leakage and oil leakage.
4. Strong power: adopts Holset supercharger with integral wastegate valve, low-speed response and strong power.

DCEC 4BT3.9 Series Industrial Engine

This is the list of all series of DCEC 4BT3.9 Series Industrial Engine.
Click here to find industrial engines by type (Fuel System & Emission Standard).

DCEC 4BTAA3.9-C110 Industrial Engine

DCEC 4BTAA3.9-C110 Industrial Engine

Rated Power: 110 HP @ 2200 RPM
Max. Torque: 500 N.m @ 1400 RPM
Fuel System:Weifu PW Pump / RSV Mech.
Aspiration:Turbocharged & Air-Air Intercooler
Emission Standard: CHINA II

DCEC 4BT3.9-C80 Industrial Engine

DCEC 4BT3.9-C80 Industrial Engine

Rated Power: 80 HP @ 2000 RPM
Max. Torque: 330 N.m @ 1500 RPM
Fuel System: Weifu PW Pump/RSV Mech.
Aspiration: Turbocharged
Emission Standard: N / A

DCEC 4BT3.9-C100 Industrial Engine

DCEC 4BT3.9-C100 Industrial Engine

Rated Power: 100 HP @ 2400 RPM
Max. Torque: 330 N.m @ 1600 RPM
Fuel System: Weifu PW Pump / RSV Mech.
Aspiration: Turbocharged
Emission Standard: N/A

DCEC 4BT3.9-C105 Industrial Engine

DCEC 4BT3.9-C105 Industrial Engine

Rated Power: 103 HP @ 2800 RPM
Max. Torque: 330 N.m @ 1600 RPM
Fuel System: Weifu A Pump / RSV Mech.
Aspiration: Turbocharged
Emission Standard: N / A

DCEC 4BT3.9-C110 Industrial Engine

DCEC 4BT3.9-C110 Industrial Engine

Rated Power: 110 HP @ 2600 RPM
Max. Torque: 330 N.m @ 1600 RPM
Fuel System: Weifu A Pump / RSV Mech.
Aspiration: Turbocharged
Emission Standard: N / A

DCEC 4BTA3.9-C80 Industrial Engine

DCEC 4BTA3.9-C80 Industrial Engine

Rated Power: 80 HP @ 2200 RPM
Max. Torque: 360 N.m @ 1400 RPM
Fuel System: BYC PB Pump / RSV Mech.
Aspiration: TC & Water-Air Intercooler
Emission Standard: EU Stage I

4BTA3.9-C100 Industrial Engine

4BTA3.9-C100 Industrial Engine

Rated Power: 100 HP @ 2200 RPM
Max. Torque: 410 N·m @ 1500 RPM
Fuel System: BYC PB Pump / RSV Mech.
Aspiration: TC & Water-Air Intercooler
Emission Standard: SEPA STAGE I

DCEC 4BTA3.9-C110 Industrial Engine

DCEC 4BTA3.9-C110 Industrial Engine

Rated Power: 110 HP @ 2200 RPM
Max. Torque: 460 N.m @ 1500 RPM
Fuel System: Weifu PW2000 / RSV Mech.
Aspiration: TC & Water-Air Intercooler
Emission Standard: N / A

DCEC 4BTA3.9-C125 Industrial Engine

DCEC 4BTA3.9-C125 Industrial Engine

Rated Power: 125 HP @ 2200 RPM
Max. Torque: 475 N.m @ 1500 RPM
Fuel System: Weifu PW2000 / RQV-K Mech.
Aspiration: TC & Water-Air Intercooler
Emission Standard: N / A

DCEC 4BTA3.9-C130 Industrial Engine

DCEC 4BTA3.9-C130 Industrial Engine

Rated Power: 130 HP @ 2500 RPM
Max. Torque: 475 N.m @ 1500 RPM
Fuel System: Weifu PW2000 / RQV-K Mech.
Aspiration: TC & Water-Air Intercooler
Emission Standard: N / A

DCEC 4BTAA3.9-C125 Industrial Engine

DCEC 4BTAA3.9-C125 Industrial Engine

Rated Power: 125 HP @ 2200 RPM
Max. Torque: 480 N·m @ 1400 RPM
Fuel System: Weifu PW2000 / RQV-K Mech.
Aspiration: TC & Air-Air Intercooler
Emission Standard: MEP STAGE II

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Generator Engine - Mr. Haden Wu

Marine Engine - Mrs. Hailey Tang

Automotive Engine - Mr. Wells Luo

Industrial Engine - Mrs. Luna Fu

Pump Engine - Miss. Zora Zhou

Engine Parts-Miss. Nora

Sales Director - Mr. Jasper Lee      

Service Team


Technical Service - Mr. Vin Hu

Customer Service - Mrs. Wendy Fu

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