Product Description

The Cummins 4BTAA3.9-G3 Generator Drive Engine is a compact, efficient, and high-output diesel engine for generator sets. With a 3.9-liter displacement, 4-cylinder inline design, and turbocharged with charge-air cooling, it provides between 96–106 kW at 1500 rpm, ensuring stable and reliable power generation for industrial, commercial, and standby applications.

Manufactured by Dongfeng Cummins Engine Co., Ltd., this genuine Cummins generator engine combines low fuel consumption, proven durability, and simple maintenance.

Specifications

• Engine Model: Cummins 4BTAA3.9-G3,
• Configuration: 4-cycle, inline 4-cylinder,
• Aspiration: Charge Air Cooled
• Displacement: 3.9 liters; bore × stroke 102 × 120 mm.
• Compression Ratio: 18.0:1.
• Rated Speed: 1500 rpm / 1800 rpm.
• Power Output: Prime: 96 kW (129 HP) @1500 rpm / Standby: 106 kW (142 HP) @1500 rpm.
• Fuel System: WF PW/Electronic Governor
• Fuel Consumption (1500 rpm): 27.6 L/h at 100% standby load; 24.7 L/h at 100% prime load

• Weight: Approx. 355 kg.

Product Advantages

• Higher Power Output – Delivers up to 106 kW, ideal for mid-sized generator sets.
• Charge-Air Cooling – Improved efficiency and thermal balance compared to basic turbo engines.
• Durability – Rugged Cummins build ensures long service life under load.
• Fuel Efficiency – Optimized direct injection system for lower fuel consumption.
• Compact Design – Small footprint and lightweight, easy integration.

• Global Support – Backed by Cummins’ worldwide parts and service network.

Key Features

• 3.9L inline 4-cylinder diesel engine for generator set.
• Turbocharged with charge-air aftercooling for improved performance.
• Reliable power output: 96 kW prime / 106 kW standby.
• Fuel-efficient operation with multiple load ratings.
• Meets international emissions standards.

• Supported by Cummins’ global distribution and service.

Applications

The Cummins 4BTAA3.9-G3 Generator Drive Engine is widely used for:

• Small and medium generator sets.
• Commercial and retail backup power.
• Hospitals, schools, and public service facilities.
• Construction and remote/off-grid power solutions.

• Light industrial and emergency standby systems.

Product Availability

The Cummins 4BTAA3.9-G3 Generator Drive Engine is available worldwide through Cummins’ authorized distributors. Customers benefit from reliable supply, genuine Cummins spare parts, and expert after-sales support to ensure dependable power generation.