3672079
b5.9g Natural Gas Auto
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$48.95 $58.25

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins B5.9G Natural Gas Automatic Engine, identified by part number 3672079, represents a significant advancement in the commercial trucking industry. This engine is designed to offer a cleaner, more efficient alternative to traditional diesel engines, leveraging natural gas as a fuel source. Its introduction addresses the growing demand for reduced emissions and improved fuel efficiency in heavy-duty applications 1.

Basic Concepts

Natural gas engines, such as the B5.9G, operate differently from traditional diesel engines. They utilize compressed natural gas (CNG) or liquefied natural gas (LNG) as fuel, which combusts more cleanly than diesel. This results in lower emissions of particulate matter, nitrogen oxides (NOx), and carbon dioxide (CO2). The B5.9G engine functions by compressing the natural gas and air mixture before igniting it, which enhances combustion efficiency and reduces the environmental impact 2.

Purpose and Role in Truck Operation

The B5.9G Natural Gas Automatic Engine plays a pivotal role in truck operations by providing a balance of performance, fuel efficiency, and reduced emissions. It is engineered to deliver reliable power and torque, ensuring that trucks can maintain high levels of performance while operating more cleanly. The engine’s design allows for seamless integration into various truck models, enhancing overall vehicle efficiency and reducing the carbon footprint of commercial fleets.

Key Features

Several key features distinguish the B5.9G engine. Its advanced fuel injection system ensures precise fuel delivery, optimizing combustion and efficiency. Turbocharging is employed to increase airflow into the engine, boosting power output without compromising fuel economy. An electronic control module (ECM) manages engine operations, adjusting parameters in real-time to maintain optimal performance. Durability enhancements, such as robust materials and precision engineering, ensure the engine can withstand the rigors of heavy-duty use.

Benefits

Adopting the B5.9G Natural Gas Automatic Engine offers several advantages. Operators can expect reduced operating costs due to the lower price of natural gas compared to diesel. The engine’s efficiency leads to lower fuel consumption, further cutting costs. Environmentally, the B5.9G engine contributes to reduced emissions, helping fleets comply with stringent environmental regulations and reduce their carbon footprint 3.

Troubleshooting and Maintenance

To ensure the longevity and optimal performance of the B5.9G engine, regular maintenance and troubleshooting are vital. Common issues may include fuel system leaks, injector malfunctions, or ECM errors. Adhering to a scheduled maintenance plan that includes filter changes, fluid checks, and system inspections can prevent many problems. Operators should also be trained to recognize early signs of trouble, such as unusual noises or performance drops, and address them promptly.

Performance and Efficiency

The B5.9G engine is designed to deliver impressive performance metrics. It offers substantial horsepower and torque, ensuring trucks can handle heavy loads and challenging terrains. Fuel consumption is optimized through efficient combustion and advanced engine management, contributing to overall truck efficiency. These performance factors are crucial for maintaining productivity and competitiveness in the commercial trucking sector.

Environmental Impact

The environmental benefits of using the B5.9G Natural Gas Automatic Engine are significant. Natural gas combustion produces fewer greenhouse gases and pollutants compared to diesel. This reduction in emissions helps fleets meet environmental standards and demonstrates a commitment to sustainability. The use of natural gas also supports energy diversification, reducing dependence on petroleum-based fuels.

Technological Innovations

The B5.9G engine incorporates several technological innovations. Advanced fuel injection technology ensures precise fuel delivery, enhancing combustion efficiency and reducing emissions. Emission control systems, such as selective catalytic reduction (SCR) and exhaust gas recirculation (EGR), are integrated to further minimize the environmental impact. These technologies work together to provide a cleaner, more efficient engine solution.

Cummins Company Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and a strong commitment to sustainability, Cummins has played a pivotal role in advancing engine technology. The company’s dedication to research and development ensures that its products, like the B5.9G engine, meet the evolving needs of the automotive industry and contribute to a cleaner, more efficient future.

Role of Part 3672079 in Provided Components

Part 3672079 is integral to the efficient operation of several key components within natural gas engine systems. Its role is to facilitate seamless integration and optimal performance of these components.

Fuel System Integration

This part ensures that the fuel system components, such as the fuel injectors and fuel rails, operate harmoniously. It allows for precise fuel delivery, which is essential for maintaining the correct air-fuel ratio. This, in turn, enhances combustion efficiency and reduces emissions.

Emission Control Systems

In conjunction with emission control systems like the catalytic converter and exhaust gas recirculation (EGR) valve, Part 3672079 helps in reducing harmful emissions. It ensures that the engine meets environmental regulations by optimizing the combustion process and minimizing the release of pollutants.

Engine Management System (EMS)

The integration of this part with the Engine Management System (EMS) is vital for monitoring and adjusting engine parameters in real-time. It allows the EMS to make necessary adjustments to fuel delivery, ignition timing, and other critical functions to ensure peak performance and efficiency.

Turbocharging and Supercharging

For engines equipped with turbocharging or supercharging, Part 3672079 plays a role in managing the increased air intake. It ensures that the additional air is properly mixed with the natural gas, enhancing power output without compromising engine integrity.

Cooling System

The part also interacts with the engine’s cooling system components, such as the radiator and thermostat. It helps in maintaining optimal engine temperature by ensuring that the cooling system responds effectively to the demands of the engine during operation.

Literature and Documentation

Finally, this part is often referenced in technical literature and documentation provided by the manufacturer. It is essential for engineers and mechanics to understand its role in the system to perform accurate diagnostics, maintenance, and repairs.

Conclusion

The Cummins B5.9G Natural Gas Automatic Engine, with part number 3672079, offers a robust solution for the commercial trucking industry by providing a cleaner, more efficient alternative to traditional diesel engines. Its advanced features, including precise fuel injection, turbocharging, and emission control systems, contribute to its high performance and environmental benefits. Regular maintenance and understanding the role of key components like Part 3672079 are crucial for ensuring the engine’s longevity and optimal operation.


  1. Carroll, Douglas R. Energy Efficiency of Vehicles. SAE International, 2020.

  2. Van Gelder, Kirk T. Fundamentals of Automotive Technology Principles and Practice. Jones Bartlett Learning, 2018.

  3. Khajepour, Amir. Synthesis Lectures on Advances in Automotive Technology. Springer, 2023.

SPECIFICATIONS

Service Part Topic
07T16-2
Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.