Cummins 4BT3.9| EQB125-20

The Cummins 4BT3.9 EQB125-20 automotive engine is a 4-cylinder, in-line, 4-liter four-stroke engine with a 102mm bore and a 120mm stroke. It’s equipped with a Bosch VP44 fuel injection pump and RQV-K governor. This engine features turbocharging and charge air cooling, along with an EURO II post-processor for emissions control. Its prime power at 2800 RPM is rated at 125 horsepower.

Hawks Parts provides comprehensive life cycle services for its customers, covering everything from design and power system supply to installation, commissioning, after-sales service training, spare parts supply, troubleshooting, and overhaul technical support.

General Information

Model: EQB125-20

Type: 4 Cylinders in Line

Displacement: 3.9L

Bore * Stroke: 102 * 120

Net Weight (with flywheel & alternator): 362 Kg

Overall Dimension: 778mm*634mm*912mm

Manufacture Plant: Dongfeng Cummins Plant

Performance Data

Rated Power/Speed: 92 kW/125HP

Rated Speed: 2800 rpm

Max Torque/Speed: 410 N.m @ 1500 rpm

Torque/Rated Speed: 317 N.m @ 2800 rpm

Max. No-load Governed Speed: 3150 rpm

Idle-Speed: 750±100 rpm

Fuel Consumption @ Rated Power: 244g/Kw.h

Max Continuous Running Altitude: 3000 m

Technical Specification

Certification: Euro II

Aspiration: Turbocharged & Intercooled

Fuel System: Wuxi Weifu Pump

Compression Radio: 17.3:1

Electrical System (Starter Motor/Alternator): 12V (500A)/24V (250A)

Lowest Starting Temp Without auxiliary system: -10℃/-25℃

Engine Cooling Fluid Volume: 7.0 L

Cooling Method: Water Cooled

Cummins Engine Series