We supply the Cummins QSB3.9 – a 3.9L inline 4 common rail diesel engine delivering 80-130kW and 550N·m torque with Tier 3 / Stage IIIA certification. This modern electronic version of the legendary 4BT features 1600-bar common rail and cooled EGR without DPF or SCR – making it the ideal repower choice for skid steers, forklifts, gensets, and small excavators where Tier 4 is not required. As a China exporter, we offer complete engines, ECUs, full harnesses, and all sensors – dyno-tested with data logging. We also provide CAN bus integration support and ECM reprogramming to match your equipment's original power curve. Send your old engine serial number, target application, and desired horsepower for a direct bolt-in quote.
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, Alibaba online payment. | ||
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. | |||
Drop us an email, let’s discuss more details
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