QSB3.9 Generator Engines Basic information

Engine Type:4 – Cylinder; In – line; 4 – Cycle
Displacement:3.9 L
Rated Speed:1500 – 1800 RPM
Governed(kW@RPM):25 kW to 84 kW@1500 – 1800 RPM
Standby Power(kW@RPM):27 kW to 88 kW@1500 – 1800 RPM
Bore * Stroke:102 mm*120 mm
Packing Size (L * W * H):1110mm * 910mm * 1350mm
Dry Weight:500-600kg
CHONGQING CUMMINS

DCEC QSB3.9 Generator Engines Detailed information

The text you provided describes the Dongfeng Cummins Joint Venture Plant (DCEC), which was established in 1986 as a joint venture between Dongfeng and Cummins USA, with Cummins holding a 50% stake. The plant operates under Cummins’ technology and product line, producing engines that are widely used in various heavy-duty applications.
One of the notable engines mentioned is the Cummins QSB3.9-G, which is known for its versatility and reliability. It is commonly used in:
Heavy trucks
Excavators
Road rollers
Bulldozers
Cranes
Water pumps
Engine power packs
Key Features of the Cummins QSB3.9-G Engine:
High Fuel Efficiency: Designed to optimize fuel consumption, making it cost-effective for heavy-duty operations.
Advanced Integrated Design: Incorporates Cummins’ advanced engineering for seamless performance.
Sophisticated Manufacturing: Ensures high-quality production standards.
Holset Exhaust Gas Wastegate: Enhances turbocharger efficiency and engine performance.
Rotor High-Pressure Fuel Pump: Delivers precise fuel injection for better combustion and power output.
Platform Honing Designed Cylinder Liner: Improves durability and reduces friction, contributing to longer engine life.
Durable and Excellent Performance: Known for its reliability and ability to perform under demanding conditions.
This engine is a testament to Cummins’ commitment to innovation, efficiency, and durability in the field of diesel engines. It is widely trusted in industries requiring robust and dependable power solutions.

Engine ModelGoverned(kW@RPM)Standby Power(kW@RPM)
QSB3.9-G284@150092@1500
QSB3.9-G358@150064@1500
QSB3.9-G3136@150040@1500
QSB3.9-G3325@150027@1500
QSB3.9-G3579@150088@1500
QSB3.9-G3763@150070@1500