4377545
Diesel Exhaust Fluid Tank
Cummins®

The Diesel Exhaust Fluid Tank (Part #4377545) by Cummins is a component designed for use in heavy-duty trucks. Its purpose is to store Diesel Exhaust Fluid (DEF), which is utilized in the Selective Catalytic Reduction (SCR) system to reduce nitrogen oxides (NOx) emissions. This tank plays a role in the overall emissions control strategy of diesel engines, contributing to cleaner exhaust and compliance with environmental regulations ¹.

Diesel Exhaust Fluid (DEF) Overview

Diesel Exhaust Fluid, commonly referred to as DEF, is a solution composed of deionized water and urea. It is injected into the exhaust stream of diesel engines where it decomposes into ammonia and carbon dioxide under high temperatures. The ammonia reacts with NOx in the presence of a catalyst, converting these harmful emissions into nitrogen and water vapor. This process is integral to meeting stringent emissions standards ².

Function of the Diesel Exhaust Fluid Tank

The Diesel Exhaust Fluid Tank operates within the SCR system by storing DEF, which is periodically injected into the exhaust stream. The tank is equipped with a level sensor that monitors the fluid level and communicates with the engine control unit to ensure the DEF is available when needed. This system helps in the reduction of NOx emissions, playing a role in the overall emissions control strategy of diesel engines ³.

Key Features of the 4377545 Diesel Exhaust Fluid Tank

The Cummins 4377545 Diesel Exhaust Fluid Tank is constructed from materials that offer resistance to corrosion and the chemical properties of DEF. It is designed with a specific capacity to accommodate the DEF requirements of heavy-duty truck engines. The tank includes design elements such as a robust mounting bracket and a secure cap to prevent leaks and ensure the integrity of the DEF. These features contribute to the tank’s performance and durability in various operating conditions.

Benefits of Using a Cummins Diesel Exhaust Fluid Tank

Utilizing the Cummins 4377545 Diesel Exhaust Fluid Tank offers several advantages. It contributes to improved emission control by ensuring a consistent supply of DEF to the SCR system. This helps in maintaining compliance with environmental regulations. Additionally, the efficient operation of the SCR system can lead to potential fuel efficiency gains, as the system is designed to work optimally with the engine’s performance parameters.

Installation and Integration

Proper installation of the Cummins 4377545 Diesel Exhaust Fluid Tank involves securing it in the designated location within the truck’s exhaust system. It is important to follow manufacturer guidelines to ensure compatibility with various truck models. The installation process includes connecting the tank to the DEF dosing system and ensuring all connections are secure to prevent leaks.

Maintenance and Troubleshooting

Routine maintenance of the Cummins 4377545 Diesel Exhaust Fluid Tank includes checking the DEF level regularly and refilling as necessary. It is also important to inspect the tank and its connections for any signs of wear or damage. Troubleshooting may involve checking the level sensor and ensuring the DEF dosing system is functioning correctly. Regular maintenance helps in ensuring the optimal performance and longevity of the tank.

Environmental Impact

The use of Diesel Exhaust Fluid Tanks, such as the Cummins 4377545, contributes to reducing harmful emissions from diesel engines. By facilitating the SCR process, these tanks play a role in lowering the levels of NOx released into the atmosphere, which is beneficial for air quality and public health. This reduction in emissions is a significant environmental benefit associated with the use of DEF in diesel exhaust systems.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel engines and emissions control technologies. With a history of innovation and a commitment to sustainability, Cummins has established itself as a key player in the industry. The company’s product portfolio includes a variety of components and systems designed to enhance the performance and efficiency of diesel engines while meeting environmental standards.

Cummins Diesel Exhaust Fluid Tank (Part 4377545) Compatibility

The Cummins Diesel Exhaust Fluid (DEF) Tank, part number 4377545, is a critical component in the Selective Catalytic Reduction (SCR) system of various Cummins engines. This part is designed to store and deliver DEF, which is essential for reducing nitrogen oxide (NOx) emissions in diesel engines. The DEF tank is compatible with several Cummins engine models, ensuring that the SCR system functions optimally across different engine configurations.

Compatible Engines

• F3.8 CM2350 F128C, QSB6.7 CM2350 B105, QSF3.8 CM2350 F107

  The DEF tank is engineered to fit seamlessly with these engines, which are part of the Cummins CM2350 series. These engines are known for their reliability and efficiency, and the DEF tank ensures that they meet stringent emission standards.

• QSG12/X12 CM2350 G110, QSL9 CM2350 L102, QSX15 CM2350 X105

  Similarly, the DEF tank is compatible with the larger QSG12/X12, QSL9, and QSX15 engines within the CM2350 series. These engines are used in heavy-duty applications, and the DEF tank plays a crucial role in maintaining their performance and compliance with environmental regulations.

The DEF tank’s design ensures it integrates smoothly with the SCR system in these engines, providing a reliable and efficient method for delivering DEF to the exhaust system. This compatibility is essential for maintaining the performance and longevity of the engines, as well as ensuring they operate within the required emission limits.

Conclusion

The Diesel Exhaust Fluid Tank (part 4377545) is a vital component in the SCR system of diesel engines, facilitating the reduction of NOx emissions through the use of DEF. Its integration with the DEF dosing system, ECU, diagnostic sensors, and user interface ensures that the engine operates within environmental regulations while maintaining performance and efficiency. Regular maintenance and proper installation are key to ensuring the longevity and effectiveness of this Cummins part.