DCEC 4BTA3.9-C125 Pump Drive Engine
DCEC 4BTA3.9-C125 pump drive engine is a 4-cylinders in line, 3.9 liters four-strokes engine with 102mm bore and 120mm stroke. Equipped with Weifu PW2000 fuel pump and RQV-K governor, comes with turbocharger and Water-Air intercooler.
The prime power at 2200RPM of DCEC 4BTA3.9-C125 pump drive engine is 93kW.As part of EMAC, PumpMac provides abundant premium pump-driven power pack options, WPT PTO, Advance gearbox and pump head, as well as customized water pump set.
We also have a set of NFPA20 standard engine power pack accessories including air intake shut-off valve, DC contactor, engine control panel, jacket water heater etc.
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 4BTA3.9-C125 Pump Engine
Advanced design and sophisticated manufacturing, adapt to various harsh working conditions, high strength, strong ability to work under heavy loads.
CMS adopts advanced design and precise manufacturing technology, which reduces fuel consumption by 20% compared with similar domestic products.
Manufacturing process: The cylinder block and cylinder head adopt integrated design, which eliminates the occurrence of engine water leakage and oil leakage.
Good reliability The integrated design of cylinder block and cylinder head prevents water and oil leakage of the engine. There are 40% fewer parts than the same type of engine, and the failure rate is greatly reduced.
The three-stage fuel filter ensures a balanced level of particle dispersion, protects the main components of the fuel system, and maximizes the life of the engine.
The cylinder bore adopts a platform mesh honing design. The perfect geometric structure effectively prevents oil leakage, and the use of advanced technology such as new piston ring components and gasket crimping and molding reduces oil loss.
Technical Specifications
| Engine Model: | 4BTA3.9-C125 |
| Engine Type: | 4 Cylinders, in Line |
| Displacement: | 3.9 L |
| Rated Speed: | 2200 RPM |
| Rated Power: | 93 kW @ 2200 RPM |
| Peak Torque: | 404 N.m @ 2200 RPM |
| Fuel System: | Weifu PW2000 Pump / RQV-K Mechanical Governor |
| Aspiration Method: | Turbocharged & Water-AirIntercooler |
| Emission Standard: | N/A |
| Bore*Storke: | 102 mm*120 mm |
| Packing Size(L*W*H): | 778 mm * 753 mm * 882 mm |
| Dry Weight: | 355 kg |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
Engine Model | Output Power | Torque | Fuel System | Aspiration |
| 4BT3.9-P50 | 36 kW @ 1500 RPM | 229 N.m @ 1500 RPM | Mechanical Pump / Electronical Governor | Turbocharged |
| 4BT3.9-P55 | 40 kW @ 1800 RPM | 212 N.m @ 1800 RPM | Mechanical Pump / Electronical Governor | Turbocharged |
| 4BT3.9-C90 | 66 kW @ 2900 RPM | N/A | Mechanical Pump / RSV Mechanical Governor | Turbocharged |
| 4BTA3.9-P80 | 58 kW @ 1500 RPM | 369 N.m @ 1500 RPM | Direct Injection / Electronical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C80-II | 60 kW @ 2200 RPM | 360 N.m @ 1400 RPM | Mechanical Pump / Electronical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-P90 | 67 kW @ 1800 RPM | 355 N.m @ 1800 RPM | Mechanical Pump / Electronical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-P95 | 70 kW @ 1500 RPM | 446 N.m @ 1500 RPM | Mechanical Pump / RSV Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C100 | 74 kW @ 2200 RPM | 410 N.m @ 1500 RPM | BYC PB / RSV Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C100-II | 74 kW @ 2200 RPM | 410 N.m @ 1500 RPM | Mechanical Pump / Electronical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C105 | 78 kW @ 2900 RPM | N/A | Mechanical Pump / RSV Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-P110 | 80 kW @ 1800 RPM | 424 N.m @ 1800 RPM | BYC PB / RSV Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C110-II | 82 kW @ 2200 RPM | 460 N.m @ 1500 RPM | Weifu PW2000 Pump/ RSV Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C125 | 93 kW @ 2200 RPM | 404 N.m @ 2200 RPM | Weifu PW2000 Pump / RQV-K Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C125-II | 93 kW @ 2200 RPM | 475 N.m @ 1500 RPM | Weifu PW2000 Pump / RQV-K Governor | Turbocharged & Water-Air Intercooler |
| 4BTA3.9-C130-II | 97 kW @ 2200 RPM | 475 N.m @ 1500 RPM | Weifu PW2000 Pump / RQV-K Governor | Turbocharged & Water-Air Intercooler |
| 4BTAA3.9-C80 | 60 kW @ 2200 RPM | 385 N.m @ 1300 RPM | BYC P7100 Pump / RSV Mechanical Governor | Turbocharged & Water-Air Intercooler |
| 4BTAA3.9-C110 | 82 kW @ 2200 RPM | 500 N.m @ 1400 RPM | Weifu PW2000 Pump / RSV Mechanical Governor | Turbocharged & Air-Air Intercooler |
| 4BTAA3.9-C115 | 87 kW @ 2200 RPM | 530 N.m @ 1300 RPM | Weifu PW2000 Pump / RSV Mechanical Governor | Turbocharged & Air-Air Intercooler |
| 4BTAA3.9-C125-II | 93 kW @ 2300 RPM | 530 N.m @ 1400 RPM | BYC P7100 Pump / RSV Mechanical Governor | Turbocharged & Air-Air Intercooler |
| 4BTAA3.9-C130 | 97 kW @ 2500 RPM | 519 N.m @ 1400 RPM | BYC P7100 Pump / RQV-K Governor | Turbocharged & Air-Air Intercooler |
| ——END—— | ||||
General Infomation of DCEC 4BTA3.9-C125 Pump Engine | |||
| Engine Model | 4BTA3.9-C125 | Advertised Power | 93 kW @ 2200 RPM |
| Peak Torque | 404 N.m @ 2200 RPM | Curve & Datasheet | FR91926 |
| Compression Ratio | 17.3:1 | No. Of Cylinders | 4 Cylinders |
| Aspiration | Turbocharged & Water-AirIntercooler | Displacement | 3.9 L |
| Bore*Storke | 102 mm * 120 mm | CPL Code Revision | 0760 |
| Fuel System | Weifu PW2000 Pump / RQV-K Mechanical Governor | Application | N/A |
| Dry Weight | 355 kg | Basic Engine(L*W*H) | 778 mm * 753 mm * 882 mm |
| Emission Standard | N/A | ||
Installation Data of DCEC 4BTA3.9-C125 Pump Engine | |||
| Center Of Gravity. Distance From Front Face Of Block | 262 mm | ||
| Center Of Gravity. Distance Above Crank Centerline(Above Crankshaft) | 160 mm | ||
| Instantaneous Inertia At Rotating: (Without Flywheel) | 0.143 kg.m2 | ||
| Maximum Crankshaft Thrust Bearing Load Limit-Intermittent Load | 3425 N | ||
| Maximum Crankshaft Thrust Bearing Load Limit-Continuous Load | 1112 N | ||
| Maximum (Static) Bending Moment at Front Support Mounting Surface | 435 N.m | ||
| Maximum (Static) Bending Moment Allowed for Side-Mounted Boss | N/A | ||
| Maximum (Static) Bending Moment at Rear Face of Block | 1356 N.m | ||
| Moment of Inertia of Complete Engine— Roll Axis | 11.1 kg.m2 | ||
| Moment of Inertia of Complete Engine— Pitch Axis | 19.1 kg.m2 | ||
| Moment of Inertia of Complete Engine— Yaw Axis | 14.7 kg.m2 | ||
Performance Data of DCEC 4BTA3.9-C125 Pump Engine | |||
| Minimum Idle Speed | 950 RMP | ||
| Maximum Speed Adjustment Speed (10% Rated Load) | 2425 RMP | ||
| Maximum Overspeed Performance | 3750 RMP | ||
| Maximum Altitude Allowed for Continuous Operation | 2255 m | ||
| 700 RMP Full Throttle Closed Torque (950 RMP Idle Speed) | 217 N.m | ||
| Governor Regulation | ≤8% | ||
| Throttle Handle Angle – High Idle | N/A | ||
| Throttle Handle Angle – Low Idle | N/A | ||
| ——END—— | |||
Engine Performance Data Rated power of DCEC 4BTA3.9-C125 Pump Engine | |||||
| Rated Power | Torque Peak | Rated Power | Torque Peak | ||
| Engine Speed | 2200 RPM | 1500 RPM | Heat Rejection to Ambient | 10.3 kW | 10.5 kW |
| Output Power | 93 kW | 75 kW | Heat Rejection to Coolant | 59.2 kW | 43.5 kW |
| Torque | 404 N.m | 475 N.m | Heat Rejection to Fuel | 0.5 kW | 0.2 kW |
| Intake Manifold Pressure | 133 kPa | 112 kPa | Engine Coolant Flow | 3.1 litre | 1.8 litre |
| Friction Horsepower | N/A | N/A | External Cooling Circuit Resistance | 20.7 kPa | 20.7 kPa |
| Intake Air Flow | 104 litre | 71 litre | Altitude limit – Instantaneous | 3048 m | 3048 m |
| Exhaust Gas Flow | 315 litre | 210 litre | Altitude limit – Continuous | 2255 m | 2255 m |
| Exhaust Gas Temperature | 560 ℃ | 520 ℃ | Steady State Smoke | 1.0 FSN | 0.8 FSN |
| Exhaust Gas Temperature | 560 ℃ | 520 ℃ | |||
System Technical Data of DCEC 4BTA3.9-C125 Pump Engine | ||
| Exhaust System | Maximum Exhaust Back Pressure | 76 mmHg |
| Exhaust Pipe Size Normally Acceptable | 75 mm | |
| Maximum Static Support Weight of Turbocharger Outlet Flange | 13.5 N.m | |
| Exhaust Manifold Insulation Acceptable | No | |
| Turbocharger Insulation Acceptable | No | |
| Air Intake System | Maximum Intake Air Restriction with Heavy Duty Air Cleaner— Clean Element | 381 mmH2O |
| Maximum Intake Air Restriction with Heavy Duty Air Cleaner— Dirty Element | 635 mmH2O | |
| Minimum Dirt Holding Capacity with Heavy Duty Air Cleaner | 53 g/cfm | |
| Maximum Temperature Rise from Ambient to the Inlet of the Turbocharger | 17 ℃ | |
| Recommended Intake Piping Size (Inner Diameter) | N/A | |
| Lubrication System | Normal Operating Oil Pressure Range | 69-345 kPa |
| Maximum Lube Oil Flow for Engine Accessories | 4 litre / min. | |
| Maximum Sump Oil Temperature | 127 ℃ | |
| Minimum Engine Oil Pressure for Engine Protection Devices-At Rated Speed and Load | 276 kPa | |
| Minimum Engine Oil Pressure for Engine Protection Devices-At Torque Peak Speed and Load | 207 kPa | |
| Minimum Engine Oil Pressure for Engine Protection Devices- At Low Idle | 69 kPa | |
| Minimum Required Lube System Capacity – Sump plus Filters | 9.0 litre | |
| By-pass Filtration Required | No | |
| Sump Inclination Angle— Front Up | 45° | |
| Sump Inclination Angle— Front Down | 45° | |
| Sump Inclination Angle— Side to Side | 45° | |
| Cooling System | Coolant Capacity – Engine Only | 8.3 litre |
| Maximum External Engine Cooling Cycle Resistance | N/A | |
| Minimum Pump Inlet Pressure with Open Thermostat and no Pressure Cap | N/A | |
| Maximum Static Head of Coolant Above Engine Crankshaft Centerline | N/A | |
| Standard (Modulating) Thermostat Range | 82-93 ℃ | |
| Maximum Block Coolant Pressure with Closed Thermostat and no Pressure Cap | N/A | |
| Minimum Pressure Cap Pressure | 50 kPa | |
| Maximum Engine Coolant Temperature at Engine Outlet | 100 ℃ | |
| Maximum Engine Coolant Temperature for Engine Protection Devices | 101.6 ℃ | |
| Minimum Engine Coolant Temperature | 71 ℃ | |
| Minimum Fill Rate | 19 litre | |
| Maximum Initial Fill Time | 5 min | |
| Minimum Coolant Expansion Space | 6% | |
| Maximum Deaeration Time | 25 min | |
| Minimum Drawdown of Total System Capacity | 11% | |
| Fan-on Engine Coolant Outlet Temperature | 93 ℃ | |
| Shutter Opening Coolant Outlet Temperature | 85 ℃ | |
| Cool Start System | Minimum Battery Capacity-Cold Soak-18°C or Above, Engine Only – Cold Cranking Amp. | 800 CCA (12 V) 400 CCA(24 V) |
| Minimum Battery Capacity-Cold Soak-18°C or Above, Engine Only – Reserve Capacity | 160 min (12 V) 80 min (24 V) | |
| Minimum Ambient Temperature for Unaided Cold Start | N/A | |
| Minimum Ambient Temperature without Auxiliary Cold Start | 0 ℃ (12 V) 32 ℃ (24 V) | |
| Minimum Cranking Speed Required for Unaided Cold Start | 125 RPM | |
| Breakaway Torque at Minimum Unaided Start Temperature | N/A | |
| Cranking Torque at Minimum Unaided Start Temperature | N/A | |
| Cranking Torque at -10°F | N/A | |
| Fuel System | Maximum Fuel Flow of Oil Pump | 193 kg/hr |
| Maximum Oil Intake Resistance-Clean Fuel Filter | 102 mmHg | |
| Maximum Oil Intake Resistance-Dirty Fuel Filter | 203 mmHg | |
| Maximum Oil Flow Resistance-With Check Valve | N/A | |
| Maximum Oil Flow Resistance-No Check Valve | 510 mmHg | |
| Maximum Fuel Inlet Temperature | 71 ℃ | |
| Minimum Tank Bleed Performance at 6 "Water Column Pressure | 340 litre | |
| ——END—— | ||
Scopes of Supply of DCEC 4BTA3.9-C125 Pump Drive Engine | ||||
| Air Intake System | 1. Air Intake Manifold | Exhuast System | 1. Exhuast Manifold | |
| 2. Water-Air Intercooler | 2. Turbocharger | |||
| 3.Air Filter | 3. Exhuast Elbow | |||
| Starting System | 1. Starter Motor | Charging System | 1. Charging Alternator | |
| 2. Starter Rely | 2. N/A | |||
| Lubricating System | Fuel System | |||
| 1. Electronic Fuel Transfer Pump | ||||
| 1. Oil Pump | 2. Common Rail Fuel System | |||
| 2. Oil Filter | 3. Fuel Filter | |||
| 4.Ecu & Wiring Harness | ||||
| Engine Auiliary Accessories | 1.N/A | Power Output System | 1. Flywheel | |
| 2. N/A | 2. Standard Flywheel Housing | |||
| Control System | 1. Ecu Socket And Sensors | Engine Mounting System | 1. Engine Mouting Bracket | |
| Cooling System | 1. Water Pump | |||
| 2. Engine Fan | ||||
| 3. Standard Radiator | ||||
| ——END—— | ||||
Optional Accessories of DCEC 4BTA3.9-C125 Pump Marine Drive Engine | ||||
| Air Intake System | 1. Air Intake Pre-heater | Exhuast System | 1. Muffler & Bellows | |
| 2. Air Intake Pre-Filter | 2. Flame Trap | |||
| 3. Air Filter Alarm System | 3. Spark Arrestor Type Muffler & Bellows | |||
| 4. Air Intake Shut-off Valve | 4. DPF System | |||
| Fuel System | 1. Coarse Filter | Engine Auiliary Accessories | 1. Hydraulic Oil Pump | |
| 2. Fuel Pre-Heater | 2. Air Compressor | |||
| Starting System | 1. Manual Magnetic DC Contactor | Cooling System | 1. Silent Type Radiator | |
| 2. Dual ears flywheel housing | 2. Plateau Radiator | |||
| 3. Spring Starter Motor | 3. Salt-Spray Resistant Radiator | |||
| 4. Air Starter Motor | 4. Coolant Pre-Heater | |||
| 5. Hydraulic Starter Motor | 5. Jacket Water Heater | |||
| 6. Extra Electric Starter Motor | 6. N/A | |||
| 7. Remote starting function | 7.N/A | |||
| 8. Lock protection function of starter motor | 8. N/A | |||
| 9. Manual Magnetic DC Contactor | 9. N/A | |||
| Power Output System | 1. Clutch | Control System | 1. Engine Monitor | |
| 2. Add Gearbox for Higher Output Speed | 2. NFPA20 Standard Engine Control Box | |||
| 3. N/A | 3. NFPA20 Fire Fighting Pump Set Control Panel | |||
| Lubricating System | 1. Oil Pre-Heater | Engine Mounting System | 1. Shock Absorber Pad | |
| ——END—— | ||||
As part of EMAC, PumpMac focusing on water pump set related business, from pump drive engine, to WPT PTO, from complete engine power pack to complete water pump set, from NFPA20 standard fire fighting pump accessories to fire pump drive package, from explosion proof accessories to complete explosion-proof water pump set, PumpMac provides professional one-stop solution for everything customer needed for water pump set industry.
For more information of our pump drive power pack and complete water pump set products, you are welcome to visit PumpMac homepage: www.pumpmac.com
Modifiable Components of DCEC 4BTA3.9-C125 Pump Marine Drive Engine | ||||
| Air Intake System | 1. Installation Position Of Air Filter | Charging System | 1. 12V Charging Alternator For 12V Electric System | |
| 2. Upgrade To Heavy-Duty Type Air Fitler | 2. Explosion-Proof Charging Alternator | |||
| 3.N/A | 3. Upgrading To Specified Brand And Speicifications Of Charging Alternator | |||
| Exhuast System | 1. Can Modify Installation Position And Direction Of Turbocharger | Lubricating System | 1. Oil Pan Position | |
| 2. Water-Cooled Exhuast Manifold | 2. Number Of Dipstick | |||
| 3. Water-Cooled Turbocharger | 3. Position Of Dipstick Can Choose From 6 Positions | |||
| 4. N/A | 4. Can Modify Oil Filter To Be Remote Installation | |||
| Fuel System | 1. Upgrade To Fuel Fitler That Integrated With Fuel Transfer Pump And Fuel Pre-Hearter | Starting System | 1. 12V starter motor for 12v electric system | |
| 2. N/A | 2. Upgrading To Specified Brand And Speicifications Of Starter Motor | |||
| Cooling System | 1. Can Modify Engine Fan Into Blower Fan Or Suction Fan | Power Output System | 1. Can Modify Size Of Flywheel Housing And Flywheel. | |
| 2. Can Modify Central Position Of Engine Cooling Fan | 2. Dual-Ear Flywheel Housing (For Twin-Starter System) | |||
| 3. Can Choose Type Of Engine Fan From Mechanical Type Or Electric Type | 3. Some Of Models Can Modify Flywheel Housing Into Pto Integrated Type | |||
| 4. Can Modify Cooling System Into Heat Exchanger And Intercooler | 4. Engine Have Connecting Port Of Ptos, That Able To Provide Power Output. | |||
| Engine Shut-Down System | 1. 12V Solenoid For 12V Electric System | Engine Mounting System | 1. Can Modify Engine Mouting Bracket. | |
| 2. Explosion-Proof Solenoid | ||||
| Engine Auiliary Accessories | 1.N/A | Control System | 1. Ecu Can Setting To Different Control Mode, Including Can Communication, Analogu Control, Isc1,Isc2,Isc3 Speed Conrol Mode Etc. | |
| ——END—— | ||||
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.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
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