Details
DCEC Cummins 6BTAA5.9-GM115 Auxiliary Engine Supplier
As a trusted global engine partner, HekoPower specializes in exporting the complete Dongfeng Cummins marine auxiliary assembly. The Cummins 6BTAA5.9-GM115 marine generator engine is a heavy-duty, 6-cylinder vertical inline power unit purpose-built for continuous marine duty. Delivering a robust Cummins 115kW marine auxiliary diesel engine output at a steady 1500RPM, this turbocharged aftercooled Cummins marine engine serves as the precise backbone for reliable shipboard electrical systems.
When you purchase a genuine DCEC marine diesel engine from an established Cummins marine genset engine factory exporter like HekoPower, you receive a precision-tested Cummins marine generator drive engine. This unit comes completely integrated with critical sub-systems—including advanced cooling, fueling, and governor systems—engineered to withstand corrosive offshore environments.
Tech Specs of Cummins 6BTAA5.9-GM115
General Engine Data
Engine Model: Cummins 6BTAA5.9-GM115
Type: 6 Cylinders in Line
Displacement: 5.9 L
Bore * Stroke: 102 * 120
Net Weight (with flywheel & alternator): 411 Kg
Overall Dimension: 867mm*544mm*988mm
Engine Configuration No.: D403096MX02
Key Performance Data
Rated Power/Standby Power: 115 kW/154HP, 127 kW/170HP
Rated Speed: 1500 rpm
Low Idle Speed: 1000±50 rpm
Fuel Consumption (Running Speed): ≤ 240 g/kW.hr
More Technical Data
Certification: CCS Certificates
Aspiration: Turbocharged and Charge Air Cooled
Fuel System: BYC A Pump/GAC Governor
Compression Ratio: 17.3:1
Electrical System (Starter Motor/Alternator): 12V/24V
Lowest Starting Temp Without auxiliary system: -12℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 9.9 L
Ignition Order: 1-5-3-6-2-4
Technical Blueprint & Configuration Variations
Choosing the right marine diesel engine for an auxiliary generator requires looking beyond basic datasheets. Understanding how the Cummins 5.9L marine genset diesel engine achieves its thermal and mechanical balance is essential for proper vessel integration.
Air-to-Air Intercooler System Mechanics
The defining feature of the 6BTAA5.9-GM115 Marine G-Drive Engine is its internal configuration. Unlike standard 6BTA models that use water jacket jackets for cooling, this variant utilizes an Air-to-Air intercooled Cummins marine engine 115kW architecture.
The Cummins marine engine intercooler system forces hot compressed air from the turbocharger through a dedicated air-to-air heat exchanger before it enters the intake manifold. This drops intake temperatures significantly, yielding highly dense oxygen delivery to the cylinders. The result is complete fuel combustion, reduced thermal stress on internal pistons, and clean exhaust compliance.
Fuel Injection and Governor Integration
Every unit features a specialized Cummins marine engine BYC PB fuel pump paired directly with a high-accuracy mechanical governor. For modern vessel frameworks that require automated synchronization, HekoPower offers customized GAC electronic governor wiring for marine auxiliary engine assemblies. This electronic control system interfaces seamlessly with digital switchboards, enabling instantaneous throttle response during sudden electrical load drops or surges.
Cooling and Exhaust Specifications
Vessel configurations dictate your choice of a marine auxiliary engine with heat exchanger configurations or keel cooling. The Cummins 6BTAA5.9-GM115 cooling system integrates a high-flow sea water pump alongside a robust copper-nickel shell-and-tube heat exchanger. For heat management inside restricted engine rooms, the 6BTAA5.9-GM115 dry exhaust system comes insulated with heavy-duty thermal blankets, reducing ambient radiant temperatures and protecting surrounding shipboard electronics.
Real Application Scenarios & Vessel Matching
This 5.9L marine engine for commercial vessels provides reliable power across diverse global maritime sectors. Below are the primary deployment frameworks for this specific configuration.
Prime Power for Fishing Vessels and Tugboats
In active maritime operations, a Cummins marine engine for fishing boats must run uninterrupted for days. The GM115 model serves perfectly as a marine auxiliary power engine for tugboats or coastal trawlers, driving the onboard hydraulic pumps, freezing equipment, and crew quarters lighting. Its compact Cummins marine generator engine dimensions allow it to fit comfortably within narrower engine rooms without limiting access for routine maintenance.
Auxiliary Power for Cargo Ships and Tugboats
For larger international vessels, like a marine genset engine for cargo ships or a diesel engine for harbor vessel generators, this engine provides localized auxiliary power. It handles base-load utilities while the ship is docked, allowing the massive main propulsion engines to be completely shut down for fuel conservation and port emissions compliance.
Marine Emergency Generator Units
Safety regulations require separate backups for critical systems. The 6BTAA5.9-GM115 functions as an excellent Cummins engine for emergency marine generators or as a reliable Cummins engine for marine emergency generator setups. Combined with its instant-start capabilities, it provides essential Cummins marine auxiliary engine standby power to drive emergency fire pumps, navigation radios, and automated steering machinery during a primary black-out event.
Comparison with Other Cummins Marine Auxiliary Engines
6BTAA5.9-GM115 vs 6BTA5.9-GM100
Compared with the lower-rated 6BTA5.9-GM100:
- The GM115 version provides higher standby capacity
- Turbocharging calibration is optimized for higher continuous output
- Generator compatibility range is broader
- Cooling requirements are slightly higher
The GM100 may be suitable for smaller fishing boats, while the GM115 is more commonly selected for larger auxiliary electrical loads.
6BTAA5.9-GM115 vs 6CT8.3 Marine Generator Engine
The 8.3L platform offers higher power reserves for large commercial vessels, but:
- Fuel consumption is higher
- Installation space requirements increase
- Spare parts costs are higher
- Engine weight is significantly greater
For medium-sized marine generator applications, the 5.9L platform often provides a more balanced operating cost structure.
Maintenance, Tuning & Replacement Protocols
Long-term survival at sea depends entirely on strict maintenance practices and proper component adjustments.
BYC PB Fuel Pump Calibrations
The mechanical heart of this engine is the inline fuel system. Performing a precise BYC PB fuel pump adjustment for Cummins 6BTAA5.9 requires setting the fuel delivery timing line exactly against the engine's top-dead-center indicator. Misalignment causes incomplete combustion, resulting in thick black smoke and rapid carbon buildup on the valves. HekoPower provides fully pre-calibrated fuel pumps with every complete assembly to match your exact operating altitude and fuel quality requirements.
Sea Water Pump and Heat Exchanger Maintenance
The marine environment is incredibly harsh on cooling hardware. Our technical staff highlights these crucial points for Cummins 5.9 marine engine maintenance:
- Regularly inspect the internal rubber impellers of the sea water pump every 500 operating hours.
- Flush the shell-and-tube heat exchanger with a mild descaling solution yearly to eliminate marine scale accumulation.
- Replace the sacrificial zinc anodes inside the cooling circuits every six months to prevent catastrophic galvanic corrosion.
Sourcing Spares and Component Matching
Using generic parts on an ocean-going vessel introduces severe risk. HekoPower maintains a complete, verified Original Cummins 6BTAA5.9-GM115 spare parts catalog, tracking every individual part number by engine serial numbers. Whether you require replacement turbochargers, fresh cylinder liners, or direct overhaul gasket kits, our status as a dedicated OEM Cummins marine auxiliary engine exporter guarantees that every single spare part matches factory specifications perfectly.
B2B Procurement, Pricing & Logistics Analysis
Navigating global engine logistics demands transparent engineering support and experienced supply-chain execution.
Factors Influencing Cummins 115kW Marine Engine Price
The base Cummins 115kW marine engine price varies depending on your required component choices. Selecting a basic mechanical governor versus an automated digital control panel change the final quote. Additionally, choosing tailored sea water pump and heat exchanger options for 6BTAA5.9-GM115 configurations over raw keel-cooled options alters pricing. HekoPower minimizes these costs by sourcing complete units directly from the factory floor, ensuring competitive pricing without any hidden broker fees.
Export Compliance and Packing Standards
As a premier China exporter for DCEC 6BTAA5.9-GM115 diesel engine units, HekoPower coordinates all maritime paperwork, export customs documentation, and transport logistics. Each Dongfeng Cummins marine auxiliary assembly is securely sprayed with anti-rust inhibitors, wrapped in thick protective film, and bolted down inside a solid, fumigated export wooden crate built to withstand complex overseas ocean transit.
Cummins B5.9-GM Series, Marine Auxilliary Diesel Engines for commercial and recreational applications, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes 6BT5.9-GM83, 6BT5.9-GM100, 6BTA5.9-GM100, 6BTAA5.9-GM115, 6BTA5.9-GM120. All engines complete with sea water pump, heat exchanger, CCS/IMO certificates.
Frequently Asked Questions (FAQ)
Is the Cummins 6BTAA5.9-GM115 engine suitable for a 100kW marine generator set?
Yes, this configuration is specifically engineered for this application. The 6BTAA5.9-GM115 engine for 100kW marine generator set deployments yields a reliable 115kW of raw mechanical brake power at 1500RPM. This leaves a healthy power reserve margin, allowing an attached alternator to easily provide a continuous 100kW (125kVA) electrical output without overloading the engine blocks.
What is the exact DCEC 6BTAA5.9-GM115 fuel consumption per hour at 1500RPM?
At its standard rating of 1500RPM, the 6BTAA5.9-GM115 fuel consumption profile curve is highly efficient. At 100% continuous prime load, the engine consumes approximately 208 grams of fuel per kilowatt-hour (g/kW.h). This converts roughly to an operational consumption of 28 to 30 liters of diesel fuel per hour, varying slightly based on ambient sea temperatures and actual alternator efficiency.
Does this engine carry a CCS certified Cummins 6BTAA5.9-GM115 registry?
Yes. As a dedicated CCS marine auxiliary engine supplier, HekoPower delivers these units complete with official Cummins 6BTAA5.9-GM115 with CCS IMO Tier II certification documentation. This official registry ensures complete legal compliance with both local marine classification societies and international maritime environmental pollution frameworks.
Can I safely buy a Cummins 6BTAA5.9-GM115 online for direct export?
When you choose to buy Cummins 6BTAA5.9-GM115 online via HekoPower, our engineering team manages the process. We confirm your vessel’s specific physical blueprints, required bell-housing sizes, and cooling layout details via video consultations prior to shipment. This thorough checking process ensures that your engine arrives ready to install right out of the box.
What are the exact 6BTAA5.9-GM115 dry weight and installation dimensions?
The baseline dry weight of this engine stands at approximately 411 kilograms (approx. 906 lbs) without external marine fluids. The general Cummins marine generator engine dimensions measure roughly 1100mm in length, 710mm in width, and 990mm in height. Always refer to your specific HekoPower installation drawing for exact engine mount coordinates and exhaust pipe centerline alignment.
