3526131
BHT4C Turbocharger
Cummins®

DISCONTINUED

Cummins®

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

Introduction

Turbochargers are crucial for enhancing the performance of commercial truck engines, significantly boosting power output and fuel efficiency. Among the various turbochargers available, the BHT4C Turbocharger by Cummins is distinguished by its exceptional design and performance. This article explores the intricacies of the BHT4C Turbocharger, detailing its components, functionality, and the impact it has on engine performance.

Basic Concepts Related to the BHT4C Turbocharger

Turbochargers are vital components in modern engines, utilizing exhaust gases to drive a turbine that compresses intake air, thereby increasing the engine’s power and efficiency. The BHT4C Turbocharger, designed by Cummins, exemplifies advanced turbocharger technology. Its design incorporates a robust turbine, a high-efficiency compressor, and durable housing, all engineered to work in harmony to deliver superior performance. The principles of forced induction are at the heart of the BHT4C’s operation, where the compressor draws in air, compresses it, and delivers it to the engine at a higher pressure, resulting in enhanced combustion and power output 1.

Purpose of the BHT4C Turbocharger

The BHT4C Turbocharger is engineered to significantly enhance engine efficiency. By increasing the amount of air that enters the engine, it allows for more fuel to be burned, resulting in greater power output without a corresponding increase in fuel consumption. This not only improves the engine’s performance but also contributes to better fuel economy. The turbocharger’s ability to maintain optimal engine performance under various conditions makes it a critical component in commercial truck engines 2.

Components and Functionality

The BHT4C Turbocharger consists of several key components, each playing a vital role in its operation. The turbine captures exhaust gases and uses them to spin the compressor. The compressor, in turn, draws in air, compresses it, and delivers it to the engine. The housing encases these components, providing structural integrity and directing the flow of air and gases. This intricate interplay of components ensures that the turbocharger operates efficiently, delivering the desired performance enhancements 3.

Cummins: A Leader in Engine Technology

Cummins has long been recognized as a leader in engine technology, with a reputation for innovation and quality. The company’s commitment to excellence is evident in the manufacturing of the BHT4C Turbocharger. Cummins’ engineering expertise ensures that the turbocharger not only meets but exceeds industry standards, providing reliable performance and durability. The significance of Cummins’ engineering in the performance of the BHT4C Turbocharger cannot be overstated, as it embodies the company’s dedication to advancing engine technology.

Troubleshooting and Maintenance

Like any mechanical component, the BHT4C Turbocharger may encounter issues over time. Common problems include turbine imbalance, compressor fouling, and bearing wear. A step-by-step troubleshooting guide can help diagnose and resolve these issues, ensuring the turbocharger continues to operate efficiently. Regular maintenance, including inspections and timely repairs, is crucial for the longevity and optimal performance of the turbocharger. Adhering to Cummins’ recommended maintenance schedules will help prevent premature failure and ensure consistent engine performance.

Expert Insights and Best Practices

Industry experts highlight the BHT4C Turbocharger’s performance, noting its efficiency and reliability. Best practices for integrating the turbocharger into engine systems include careful installation to ensure proper alignment and secure mounting. Maximizing the turbocharger’s efficiency and lifespan involves regular maintenance, using high-quality lubricants, and monitoring engine performance metrics. These practices contribute to the turbocharger’s longevity and consistent performance.

Real-World Applications and Case Studies

The BHT4C Turbocharger has been successfully applied in various commercial truck models, demonstrating its versatility and effectiveness. Case studies showcase the turbocharger’s impact on engine performance and reliability, with testimonials from engineers, mechanics, and fleet operators attesting to its benefits. These real-world applications underscore the turbocharger’s value in enhancing engine efficiency and power output.

Compatibility with N14 Mechanical Engines

The BHT4C Turbocharger is specifically designed to fit seamlessly with the N14 Mechanical engines. This compatibility ensures that the turbocharger can effectively integrate with the engine’s architecture, providing reliable performance and durability. The N14 Mechanical engines benefit from the turbocharger’s ability to boost power output and improve fuel efficiency, making it a valuable addition for users seeking enhanced engine performance.

Compatibility with NH/NT 855 Engines

Similarly, the Cummins BHT4C Turbocharger is also compatible with the NH/NT 855 engines. This turbocharger is engineered to work in harmony with the NH/NT 855 engines, ensuring that it can deliver the necessary performance improvements without compromising the engine’s integrity. The integration of the BHT4C Turbocharger with the NH/NT 855 engines results in better power delivery, improved fuel economy, and increased reliability, making it an ideal choice for users of these engines.

Grouping of Compatible Engines

The Cummins BHT4C Turbocharger (Part 3526131) is designed to fit both the N14 Mechanical and NH/NT 855 engines, which are often used in heavy-duty applications. This turbocharger’s compatibility with these engines ensures that it can provide the necessary performance enhancements for a range of applications, from construction to transportation. The seamless integration of the turbocharger with these engines highlights its versatility and effectiveness in improving engine performance.

Integration with Engine Components

  1. Intake System: The BHT4C Turbocharger is connected to the intake system, where it compresses the incoming air before it enters the engine’s combustion chambers. This increased air pressure allows for more fuel to be burned, resulting in enhanced power output.

  2. Exhaust System: The turbocharger is also linked to the exhaust system. The exhaust gases drive the turbine within the turbocharger, which in turn spins the compressor. This symbiotic relationship ensures that the turbocharger operates efficiently without relying solely on the engine’s power.

  3. Intercooler: In many high-performance setups, the BHT4C Turbocharger is paired with an intercooler. The intercooler cools the compressed air from the turbocharger before it enters the engine, increasing its density and further improving combustion efficiency.

  4. Fuel System: The increased air flow from the turbocharger necessitates adjustments in the fuel system. Typically, a performance fuel system is required to deliver the appropriate amount of fuel to match the increased air volume, ensuring optimal air-fuel ratio and preventing detonation.

  5. ECU (Engine Control Unit): The integration of the BHT4C Turbocharger often requires reprogramming of the ECU. The ECU must be calibrated to manage the additional boost pressure, adjust fuel delivery, and monitor various sensor inputs to maintain engine health and performance.

  6. Performance Parts: To support the increased stress and demands placed on the engine by the turbocharger, other performance parts may be necessary. These can include upgraded pistons, rods, and bearings, as well as reinforced gaskets and seals to withstand the higher pressures and temperatures.

Overall Impact on Performance

The BHT4C Turbocharger significantly elevates the performance capabilities of the engine system it is part of. By increasing the amount of air that enters the combustion chambers, it allows for more fuel to be burned, which translates to greater power output. This enhancement is particularly noticeable in high-performance applications where every increment of power can make a substantial difference.

Conclusion

Understanding the BHT4C Turbocharger by Cummins is essential for anyone working with commercial truck engines. Its advanced design, components, and functionality contribute to enhanced engine performance and fuel efficiency. Regular maintenance and adherence to best practices are crucial for ensuring the turbocharger’s longevity and optimal operation. By applying the knowledge gained from this article, mechanics and engineers can maximize the performance of commercial truck engines, ensuring they operate at peak efficiency.


  1. Hilgers, Michael. Transmissions and Drivetrain Design. Springer Vieweg, 2022.

  2. Hu, Haoran, Simon J Baseley, and Xubin Song. Advanced Hybrid Powertrains for Commercial Vehicles Second Edition. SAE International, 2021.

  3. Bennett, Sean, and Ian Andrew Norman. Heavy Duty Truck Systems, Fifth Edition. Delmar Cengage Learning, 2011.

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SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
18.0 x 17.5 x 17.5 in
Weight
70 lbs
* 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.