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Cummins B 3.9 Pump Engine

Cummins B 3.9 Pump Engine

Power:

36kw~80kw

Rating type:

Max Power

Type:

In line, 4 cylinders, 4 stroke

Application:

For pump application

Packing Size:

1000*900*1100mm

Weight:

420kg

HS Code:

840820

Technical Specification of Cummins B 3.9 Pump Engine

Engine Model

4BT3.9-P50~4BTA3.9-P110

Fuel System

Mechanical Pump+Electronic Governor

Power

36kw~80kw

Peak Engine Torque

229N.m~446N.m

Speed

1500rpm~1800rpm

Compression Ratio

17.3:1

Rating Type

Rated power

Fuel Consumption at Rated Speed

207g/kwh

Bore

102

Aspiration

Turbochanger& Aftercooler

Stroke

120

Cooling system

Fan &Radiator/Heat exchanger

Displacement

3.9L

Emission

China Stage II

General Information of Cummins B 3.9 Pump Engine

Reliable Power for Pumping Applications

The Cummins B 3.9 Pump Engine delivers strong and steady power for water, irrigation, and industrial pumping systems. It is built for efficiency, durability, and smooth performance. With a compact design and proven reliability, this 4-cylinder engine is ideal for operations that need consistent output and low running costs.

Efficient and Fuel-Saving Design

The Cummins B 3.9 Pump Engine uses a modern direct fuel injection system for clean and efficient combustion. It provides strong torque at low speeds while using less fuel. In addition, the cooling and air-handling systems keep the engine at a stable temperature, even during long working hours. This means better efficiency, lower fuel use, and reduced maintenance costs.

Durable Build for Long Life

This pump engine is made with high-quality materials and tested for tough environments. Its reinforced components and solid structure ensure long service life and steady performance. Maintenance is easy because filters and service points are within reach. As a result, operators can complete routine checks faster and keep equipment running smoothly.

Versatile and Easy to Maintain

The Cummins B 3.9 Pump Engine works well in many fields, including construction dewatering, farm irrigation, and industrial water systems. It starts easily, runs quietly, and delivers stable performance. Furthermore, parts are widely available, and Cummins’ global support network ensures fast service anywhere.

Choosing the Cummins B 3.9 Pump Engine means investing in dependable power, good fuel economy, and simple maintenance. It is a smart choice for anyone who needs reliable pumping performance day after day.

Model Emission Standard Governed (kW@RPM) Peak Torque (Nm@RPM) Cylinders Displacement (Liters)
4BT3.9-P50 China Stage II 36@1500 229@1500 4 3.9
4BT3.9-P55 China Stage II 40@1800 212@1800 4 3.9
4BTA3.9-P80 China Stage II 58@1500 369@1500 4 3.9
4BTA3.9-P90 China Stage II 67@1800 355@1800 4 3.9
4BTA3.9-P95 China Stage II 70@1500 446@1500 4 3.9
4BTA3.9-P110 China Stage II 80@1800 424@1800 4 3.9

Download of Cummins B 3.9 Pump Engine Datasheet

Model

Power

Emission

Datasheet

Drawing

Service Manual

4BT3.9-P50~4BTA3.9-P110

36kw~80kw

China Stage II

Download

Download

Download

Model

4BT3.9-P50~4BTA3.9-P110

Power

36kw~80kw

Emission

China Stage II

Datasheet

Download

Drawing

Download

Service Manual

Download

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