B3.9 Construction Machinery Engines Basic information

Engine Type:4 – Cylinder; In – line; 4 – Cycle
Displacement:3.9 L
Rated Speed:1900 – 2100 RPM
Advertised Power:80 HP to 130 HP @ 1900 – 2100 RPM
Peak Torque:370 N.m to 510 N.m @ 1300 – 1500 RPM
Bore * Stroke:102 mm*120 mm
Packing Size (L * W * H):1110mm * 910mm * 1350mm
Dry Weight:500-600kg
CHONGQING CUMMINS

DCEC B3.9 Construction Machinery 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 4BT3.9-C, 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 4BT3.9-C 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(HP@RPM)Peak Torque(Nm@RPM)Intake
4BTAA3.9-C115115 HP @ 2200 RPM378 N·m @ 2200 RPMSupercharged intercooling
4BTAA3.9-C110110 HP @ 2200 RPM500 N·m @ 1400 RPMSupercharged intercooling
4BTA3.9-C130130 HP @ 2500 RPM475 N.m @ 1500 RPMSupercharged intercooling
4BTA3.9-C125125 HP @ 2200 RPM475 N.m @ 1500 RPMSupercharged intercooling
4BTA3.9-C120120 HP @ 2200 RPM460 N.m @ 1500 RPMSupercharged intercooling
4BTA3.9-C110110 HP @ 2200 RPM460 N.m @ 1500 RPMSupercharged intercooling
4BTA3.9-C100100 HP @ 2200 RPM410 N·m @ 1500 RPMSupercharged intercooling
4BTA3.9-C8080 HP @ 2200 RPM360 N.m @ 1400 RPMSupercharged intercooling
4BT3.9-C110110 HP @ 2600 RPM330 N.m @ 1600 RPMSupercharged intercooling
4BT3.9-C105103 HP @ 2800 RPM330 N.m @ 1600 RPMSupercharged intercooling
4BT3.9-C100100 HP @ 2400 RPM330 N.m @ 1600 RPMSupercharged intercooling
4BT3.9-C8080 HP @ 2000 RPM330 N.m @ 1500 RPMSupercharged intercooling
4BTAA3.9-C8080 HP/2200 RPM370Nm/1300RPMSupercharged intercooling
4BTAA3.9-C100100 HP/2200 RPM400Nm/1500RPMSupercharged intercooling
4BTAA3.9-C125125 HP/2200 RPM480Nm/1400RPMSupercharged intercooling
4BTAA3.9-C130130 HP/2200 RPM510Nm/1400RPMSupercharged intercooling