Cummins B3.9CS4 Diesel Engine

Cummins B3.9CS4 diesel engine

Cummins B3.9CS4 series | Construction |  engine(s)

Max. horsepower: 118  PS
Max. torque: 540  N.m

Product Advantages

• New design, new material and new process: The new generation of engine architecture and the unique EGR system are adopted, allowing for an emission in compliance with the China IV emission standard without using urea, better fuel adaptability and robustness, and higher suitability for the application environment of construction machinery. • Intelligent linkage and higher efficiency: The new generation of high-efficiency fuel system realizes more accurate high-pressure injection control and fuel supply compensation, with higher fuel efficiency and better fuel economy.

Product Portfolio

Model Rated power/speed (kW/rpm) Peak torque/speed (N·m/rpm) Application Standards

B3.9CSIV 80C

60/2500

350/1600

construction

China IV

B3.9CSIV 110C

81/2500

480/1600

construction

China IV

B3.9CSIV 115C

85/2200

480/1320

construction

China IV

B3.9CSIV 130C

96/2500

520/1600

construction

China IV

B3.9CSIV 150C

110/2500

540/1600

construction

China IV

B3.9CS4 160C

118/2600

530/1600

construction

China IV

Cummins Genuine parts

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part1
Fuel pump

part2
Cylinder head

part3
Cylinder block

part4
Crankshaft

part4
Starter motor

part4
Piston

part4
Injector

part4
Alternator

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Cummins B3.9CS4 Diesel Engine Spare Parts

Looking for spare parts for your Cummins B3.9CS4 diesel engine? Xunai Machinery supplies genuine and high-quality replacement parts for Cummins engines — including pistons, piston rings, cylinder liners, crankshafts, connecting rods, gaskets, fuel injectors, fuel pumps, water pumps, oil pumps, turbochargers, bearings and full overhaul kits. Keep your B3.9CS4 engine running with fast-shipping OEM-quality components at factory prices.

Browse all Cummins spare parts Cummins piston rings Cummins cylinder liners Cummins crankshafts Cummins gasket kits

Cummins B3.9CS4 Engine – Overview & FAQ

Part of Cummins' China Stage IV (CS IV) construction engine range, engineered by DCEC to meet stringent non-road emissions rules with EGR-free aftertreatment technology, this 3.9L B-series construction engine offers strong power density in a compact, low-weight package. This variant delivers 118hp (88kW) with 540N.m of torque, the entry-level power tier in the CS IV-compliant B3.9 construction engine lineup.

Xunai Machinery supplies the full Cummins B3.9CS4 range, including B3.9CSIV 80C, B3.9CSIV 110C, B3.9CSIV 115C, B3.9CSIV 130C, B3.9CSIV 150C, B3.9CS4 160C. Contact us for the exact specification, availability and lead time of any model.

The Cummins B3.9CS4 diesel engine is commonly used for | Construction | applications. As a China-based manufacturer and exporter, Xunai Machinery ships Cummins engines and genuine spare parts worldwide at competitive prices.

Yes. We supply a complete range of Cummins spare parts – including piston rings, cylinder liners, crankshafts and gasket kits – for the B3.9CS4 and other Cummins engine series. Contact us for a quotation.

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