YQFD-4102AHM Fire Pump Engine
YQFD-4102AHM Fire Pump Engine is a 4-cylinders in line, 3.9 liters four-strokes engine with 102 mm bore and 120 mm stroke. Equipped with mechanical fuel pump and electronic governor, comes with turbocharger.The prime power at 2950 RPM of YQFD-4102AHM Fire Pump Engine is 77 kW.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 YQFD-4102AHM Fire Pump Engine
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The YQFD-4102AHM diesel engine boasts enhanced 4102-series power, delivering robust torque for heavy-duty tasks while optimizing fuel efficiency to lower operational costs effectively.
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UL-listed and certified for multi-region compliance, it meets stringent global safety and emission standards, supporting seamless market entry in major international markets.
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Reinforced with anti-fatigue components and optimized heat dissipation, it maintains stable operation in extreme conditions with minimal wear and a prolonged service life.
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Compact yet robust, its modular design simplifies integration; universal interfaces and tool-free access enable quick maintenance and reduce operational downtime.
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Equipped with low-noise combustion technology and a high-efficiency catalytic converter, it achieves low emission levels and quiet operation, aligning with green industry trends.
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Tailored for medium-to-large construction gear, backup generators, and agricultural machinery, it adapts to variable workloads with consistent, reliable performance.
Technical Specifications
| Engine Model: | YQFD-4102AHM |
| Engine Type: | 4 Cylinders, in Line |
| Displacement: | 3.857 L |
| Rated Speed: | 2950 RPM |
| Rated Power / Speed: | 77 kW @ 2950 RPM |
| Peak Torque: | 249.3 N.m @ 2950 RPM |
| Combustion System: | Direct Injection inCylinder |
| Aspiration Method: | Turbocharged |
| Emission Standard: | N/A |
| Compression Ration: | 17 : 1 |
| Basic Engine(L * W * H): | N/A |
| Dry Weight: | 500 kg |
| Lead Time: | 15 – 30 Working Days |
| Payment Terms: | T/T ,L/C |
Engine Model |
Output Power |
Torque |
Combustion System |
Aspiration |
| YQFD-4102AHM | 77 kW @ 2950 RPM | 249.3 N.m @ 2950 RPM | Direct Injection in Cylinder | Turbocharged |
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General Infomation of YQFD-4102AHM Fire Pump Engine |
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| Engine Model | YQFD-4102AHM | Output Power | 77 kW @ 2950 RPM |
| Torque | 249.3 N.m @ 2950 RPM | No. of Cylinders | 4 Cylinders |
| Compression Ratio | 17 : 1 | Aspiration | Turbocharger |
| Combustion System | Direct Injection in Cylinder | Emission Certification | N/A |
| Displacement | 3.857 L | Bore * stroke | 102 mm * 118 mm |
| Governor Regulation | ≤ 10% | Application | Water Pump |
| Dry Weight | 500 kg | CPL Code Revision | N/A |
| Basic Engine(L * W * H) | N/A | ||
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YQFD-4102AHM Fire Pump Engine configuration table |
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| Power – KW (HP) | 84(112.66) | Cooling water ring inlet pressure – bar (psi) | 16(232.06) |
| Heat Exchanger Max Cooling Raw Water Inlet pressure – bar (psi) | 6(87.02) | Flow – L/min (gal/min) | 94.8(25) |
| Typical Engine Water Operating Temp – ℃ (℉) | 76.7(170) – 87.8(190) | Thermostat Start to Open – ℃ (℉) | 76.7(170) |
| Thermostat Fully Open – ℃ (℉) | 87.8(190) | Engine coolant capacity – L (qt) | 12.5(13.2) |
| Coolant Pressure Cap – kPa (lb/in²) | 68.9(10) | Max Engine Coolant Temp – ℃ (℉) | 93(200) |
| Min Engine Coolant Temp – ℃ (℉) | 71(160) | High Coolant Temp Alarm Switch – ℃ (℉) | 95(204) |
| System Voltage (V) | 24 | Nominal Voltage (V) | 12 |
| Qty.per Battery Bank (PC) | 4 (2 groups) | Recommend CCA @ -17.8℃ (0℉) (A) | 800 |
| Recommend Reserve Capacity-MF (Ah) | 100 | Recommended maximum length of battery cable | <5m |
| Battery Cable Dimensions (mm²) | 50 | Charging Alternator Maximum Output – Amp (A) | 35 |
| Start motor running current (A) | 290 | Single engine exhaust outlet – L(cu.in.) | 3.857(235.37) |
| Exhaust Temp – ℃ (℉) | 503(937.4) | Maximum Allowable Back Pressure – kPa (lb/in²) | 6(0.87) |
| Min Exhaust Pipe Dia. – mm (in) | 76(2.99) | Specific Fuel Consumption – g/kwh | 247.6 |
| Fuel Pressure – kPa (lb/in²) | 20 ~ 30(2.90 ~ 4.35) | Min Inside Diameter of Fuel Line – mm (in) | 10(0.39) |
| Maximum Allowable Fuel Level Height Shall Not Exceed – m (in) | 2.5(98.43) | Heater system (engine coolant heater) Power – (w) | 1500 |
| Heater system Voltage – AC1 Phase (V) | 220(+5%,-10%) or 110(+5%,-10%)(optional) |
Heater system Part Number | JG51-1500 |
| Dirty Air Cleaner – kPa (lb/in²) | ≥2.5(0.36) | Clean Air Cleaner – kPa (lb/in²) | 1.0(0.14) ~ 2.5(0.36) |
| Max Allowable TEMP (Air to Engine Inlet) – ℃ (℉) | 54.4(130) | Oil pressure – Normal – kPa (lb/in²) | 350(50.72) ~ 650(94.20) |
| Low Oil Pressure Alarm Switch – kPa (lb/in²) | 250(36.23) | In Pan Temp – ℃ (℉) | 104(220) ~ 118(244) |
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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
