As a leading China-based exporter and factory supplier, we specialize in the direct supply of the Cummins QSB3.9 diesel engine—a 3.9L, 4-cylinder common rail powerhouse engineered for demanding industrial applications. Designed as the modern electronic upgrade of the legendary 4BT series, this engine delivers optimal performance for construction machinery (excavators/loaders), generator sets, and agricultural equipment, providing 80-130kW output with a peak torque of 550N·m . By sourcing directly from our manufacturing facility, we eliminate intermediary costs, offering certified, dyno-tested engines with ECM programming support to match your specific equipment requirements. We provide complete engine assemblies, ECUs, and sensor kits with a robust 12-month warranty, ensuring reliable global shipping and seamless integration for repower projects or original equipment manufacturing .
Products Overview
QSB3.9-C80 | QSB3.9-C100 | QSB3.9-C130 | |
Cyl No. and Arrangement | 4-Cyl in-line | ||
Bore/Stroke(mm) | 102/120 | ||
Air-intake way | Turbo charged cooling | ||
Combustion system | Direct injection | ||
Cooling way | Water-cooled | ||
Displacement(L) | 3.9 | ||
Max.Torque(N.m) | 300 | 400 | 500 |
Power(kw) | 60 | 75 | 97 |
Power(hp) | 80 | 100 | 130 |
Speed(rpm) | 2000 | ||
Net Weight(kg) | 300 | ||
Weight(kg) | 350 | ||
Dimension(L*W*H/cm) | 75*60*80 | ||
Application: | construction machinery / generator set / mining equiment / water pump / truck | ||
Certification | ISO9001:2000 | ||
Warranty | 12 Months / 1000 Hours | ||
Quality Control | The engines have been rigorously tested | ||
Payment | T/T, Western Union. | ||
Service | Guidance on product issues through online and video support | ||
The price varies based on configu-ration, serial number, and part quality. For an accurate quote, contact a supplier with your specific engine serial number ornameplate. | |||
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