Cummins Engine 4BTA 3.9

The Cummins 4BTA 3.9 is an inline four-cylinder medium-duty diesel engine platform engineered for medium-duty road transportation. It delivers steady mechanical controlled power output, strong low-speed torque and well-verified long-term durability, ideal for vehicle fleets complying with Euro II / China II emission requirements.

Designed with Cummins mature B-series global technology, the 4BTA 3.9 integrates mechanical fuel system, high-strength cast iron architecture and simplified accessory layout. It helps operators reduce total cost of ownership while maintaining stable driving performance under variable load road conditions.

Product Advantages

Strong Power

• Maximum power of 130 HP, rich low-speed torque for easy climbing and cargo transportation.
• Wide flat torque range, ensuring stable power output during frequent acceleration and deceleration.

Low Operation Cost

• Mechanical fuel injection structure, fewer electronic components and low failure risk.
• Mature global spare parts supply chain, convenient overhaul and short vehicle downtime.
• Optimized combustion design balances power requirement and fuel consumption.

Safe and Reliable

• High-strength cast iron cylinder block and cylinder head deliver extended service life.
• Compact overall layout, standardized installation interface, simple maintenance operation.
• Excellent environmental adaptability, capable of stable operation under varied road and climate conditions.

Technical Specifications