Cummins / Complete Engine Cummins/ Komatsu/ Weichai / B, C, L Cummins Engine / 4B3.9 4BT 4BTA 4BTAA Cummins Engine 3.9L / Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine
Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine
Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine
Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine
Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine
Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine

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Genuine Cummins 4BT 4BTAA3.9-C125 CPL4439 125HP 4 Cylinder Industrial Diesel Engine

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The 3.9L is an inline four-cylinder naturally aspirated (4B) or turbodiesel (4BT/4BTA) that was popular for many step van applications, including bread vans and other commercial vehicles. Additionally, it has seen broad usage in agricultural equipment.
  • 4BTAA3.9-C125 CPL4439

  • Cummins

  • 1-7 days

  • Genuine Original package or Ne

  • 6 Months

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Cummins 4BTAA3.9-C125 CPL4439 Engine Overivew

Configurations and Model Names
EPA Model NameNot Available
Marketing Engine Configuration #D383039CX02
Marketing Model Name4B3.9
Service Model Name4B3.9
Technical Engine Configuration #D383039CX02
Engine Build Details
Build Date2026-02-10T00:00:00Z
Build PlantDFM - CHINA - DONGFENG MOTORS
CPL #4439
Shop OrderSO13570
Warranty Start DateNot Available
Technical Specification Details
ECM CodeNot Available
Fuel Pump Part #Not Available
Fuel Pump CalibrationSR10

4BT3.9 for Commercial Industrial

Specifications

  • Cummins® heavy-duty engine - Rugged 4-cycle, industrial diesel delivers reliable power, low emissions and fast response to load changes.

  • Alternator - Several alternator sizes offer selectable motor starting capability with low reactance 2/3 pitch windings, low waveform distortion with non-linear loads and fault clearing short-circuit capability.

  • Control system - The PowerCommand® electronic control is standard equipment and provides total genset system integration including automatic remote starting/stopping, precise frequency and voltage regulation, alarm and status message display, AmpSentry™ protection, output metering, auto-shutdown at fault detection and NFPA 110 Level 1 compliance.

  • Cooling system - Standard integral set-mounted radiator system, designed and tested for rated ambient temperatures, simplifies facility design requirements for rejected heat.

  • Enclosures - Optional weather protective and sound attenuated enclosures are available.

  • Fuel tanks - Dual wall sub-base fuel tanks and in-skid day tanks are also offered.

  • NFPA - The genset accepts full rated load in a single step in accordance with NFPA 110 for Level 1 systems

Cummins 4BT3.9 Engine Ratings

ModelRated power output (kW@RPM)Peaktorque (Nm@RPM)Rated power output (HP)
4BTA3.9-C8060@2200350@150080HP
4BTA3.9-C10074@2200380@150099HP
4BTA3.9-C11082@2200460@1400110HP
4BTA3.9-C12593@2300475@1500125HP
4BTA3.9-C13097@2500475@1500130HP


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