4387617
Diesel Exhaust Fluid Tank
Cummins®

The Diesel Exhaust Fluid Tank, specifically Part #4387617 by Cummins, is a component integral to modern diesel engines. It plays a role in emissions control, ensuring that diesel engines meet stringent environmental regulations. This tank is designed to store and supply Diesel Exhaust Fluid (DEF), which is used in the Selective Catalytic Reduction (SCR) system to reduce nitrogen oxides (NOx) emissions ¹.

Basic Concepts of Diesel Exhaust Fluid Tanks

Diesel Exhaust Fluid (DEF), also known as AUS 32, is a solution of urea and deionized water. It is injected into the exhaust stream of diesel engines where it decomposes into ammonia and carbon dioxide. This process occurs in the SCR system, where the ammonia reacts with NOx to form harmless nitrogen and water vapor. The importance of DEF lies in its ability to significantly reduce NOx emissions, a key contributor to air pollution and smog ².

Purpose of the 4387617 Diesel Exhaust Fluid Tank

This Cummins part is engineered to store DEF and supply it to the SCR system in a controlled manner. Its role in the operation of a truck is to ensure a consistent and reliable source of DEF, which is important for the SCR system to function effectively. By maintaining the DEF supply, the tank helps in the continuous reduction of NOx emissions, contributing to cleaner exhaust and better environmental performance.

Key Features

The 4387617 is constructed from materials that ensure durability and resistance to corrosion. It is designed with a specific capacity to accommodate the DEF needs of the engine it serves. Key design elements include robust connections and fittings that enhance the tank’s efficiency and reliability. Cummins’ design incorporates features that not only ensure the tank’s longevity but also its efficiency in delivering DEF to the SCR system.

Benefits of Using the 4387617 Diesel Exhaust Fluid Tank

Utilizing this Cummins part offers several advantages. It contributes to improved emissions performance by ensuring the SCR system has a consistent supply of DEF. This compliance with environmental regulations is vital for operators looking to minimize their environmental footprint. Additionally, the tank’s design enhances engine efficiency and contributes to the overall reliability of the vehicle, ensuring smooth operation and reduced maintenance needs.

Installation and Integration

Proper installation of this part is crucial for its effective operation. It is designed to be compatible with Cummins engines and integrates seamlessly with the SCR system. Installation guidelines include specific mounting and connection requirements to ensure the tank is securely fitted and functions as intended within the vehicle’s emissions control system.

Maintenance and Troubleshooting

Routine maintenance of this part is recommended to ensure its longevity and efficiency. This includes regular inspection procedures to check for any signs of wear or damage, cleaning protocols to maintain the tank’s interior, and troubleshooting common issues such as leaks, sensor malfunctions, or concerns regarding the quality of DEF. Proper maintenance ensures the tank continues to perform its role effectively in the emissions control system.

Environmental Impact

The use of Diesel Exhaust Fluid Tanks, like the 4387617, plays a role in reducing the environmental impact of diesel engines by lowering NOx emissions. This contributes to cleaner air quality and supports the transition towards more sustainable transportation solutions. The technology behind DEF and SCR systems represents a significant advancement in emissions control, promoting cleaner diesel technology across the industry ³.

Cummins’ Commitment to Innovation

Cummins has a history of innovation in the diesel engine industry, with a reputation for developing advanced emissions control technologies. The 4387617 Diesel Exhaust Fluid Tank is a testament to Cummins’ commitment to innovation and environmental responsibility. By continuously improving emissions control solutions, Cummins contributes to the industry’s efforts to reduce its environmental impact and comply with global emissions standards.

Compatibility of the Cummins Diesel Exhaust Fluid Tank (Part 4387617)

The Cummins Diesel Exhaust Fluid (DEF) Tank, identified by part number 4387617, is designed to be compatible with a range of Cummins engines. This DEF tank is a component for the Selective Catalytic Reduction (SCR) system, which helps reduce nitrogen oxide (NOx) emissions in diesel engines. Below is a breakdown of the compatibility of this DEF tank with various Cummins engines:

F3.8 CM2350 Series

• F3.8 CM2350 F128C
• QSF3.8 CM2350 F107

The F3.8 CM2350 series engines, including the F128C and F107 variants, are designed for applications that require a balance of power and efficiency. The DEF tank for these engines is engineered to seamlessly integrate with the SCR system, ensuring optimal performance and compliance with emissions regulations.

G12/X12 CM2350 Series

• QSG12/X12 CM2350 G110

The G12/X12 CM2350 G110 engine is part of the larger G12/X12 series, known for its robust performance and reliability. The DEF tank for this engine is specifically designed to fit the unique layout and requirements of the G12/X12 series, ensuring that the SCR system operates efficiently.

L9 CM2350 Series

• QSL9 CM2350 L102

The L9 CM2350 L102 engine is designed for heavy-duty applications, providing substantial power and durability. The DEF tank for this engine is built to withstand the rigors of heavy-duty use, ensuring that the SCR system functions effectively even under demanding conditions.

X15 CM2350 Series

• QSX15 CM2350 X105

The X15 CM2350 X105 engine is part of the high-performance X15 series, known for its exceptional power and efficiency. The DEF tank for this engine is engineered to meet the high standards of the X15 series, ensuring that the SCR system operates flawlessly, contributing to reduced emissions and improved engine performance.

Role of Part 4387617 Diesel Exhaust Fluid Tank in Engine Systems

The Diesel Exhaust Fluid (DEF) tank, specifically part 4387617, is integral to the operation of modern diesel engines equipped with Selective Catalytic Reduction (SCR) systems. This tank stores DEF, a solution of urea and deionized water, which is injected into the exhaust stream to convert harmful nitrogen oxides (NOx) into harmless nitrogen and water vapor.

Integration with Key Engine Components

1. DEF Pump and Injector: The DEF tank is connected to the DEF pump, which draws the fluid from the tank and pressurizes it. The pressurized DEF is then delivered to the injector, typically located in the exhaust system upstream of the SCR catalyst. The injector sprays DEF into the hot exhaust gases, where it decomposes into ammonia. This ammonia reacts with NOx in the presence of the SCR catalyst to form nitrogen and water.

2. SCR Catalyst: The SCR catalyst is where the chemical reaction facilitated by DEF takes place. The DEF tank ensures a consistent supply of DEF to maintain the efficiency of the SCR system. Without adequate DEF, the catalyst’s ability to reduce NOx emissions would be compromised.

3. Exhaust System: The DEF tank is part of a broader exhaust after-treatment system that includes the Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and the SCR system. Each component plays a role in cleaning the exhaust, with the DEF tank specifically targeting NOx emissions.

4. Engine Control Unit (ECU): The ECU monitors the DEF tank level and the overall SCR system performance. Sensors within the tank provide real-time data to the ECU, allowing it to adjust the DEF injection rate based on engine load, speed, and exhaust temperature. This ensures optimal DEF usage and maximum emission reduction efficiency.

5. DEF Quality Sensor: Some systems include a DEF quality sensor that checks the purity of the fluid in the tank. This sensor helps prevent the injection of contaminated DEF, which could damage the SCR catalyst and other components.

6. DEF Dosing Valve: The DEF dosing valve regulates the amount of DEF injected into the exhaust stream. It works in conjunction with the DEF tank to ensure precise dosing, which is essential for the effective operation of the SCR system.

Conclusion

In summary, part 4387617 Diesel Exhaust Fluid Tank is a vital component in the DEF delivery system, ensuring that the SCR system operates efficiently to meet emissions standards. Its integration with various engine components underscores its importance in modern diesel engine technology.