3918670
Turbocharger Oil Drain Connection
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$124.95 $148.69

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 Turbocharger Oil Drain Connection, identified by Part #3918670, is a component manufactured by Cummins, a prominent entity in the automotive and heavy-duty truck industry. This part is integral to the turbocharger system in heavy-duty truck engines, facilitating efficient oil management and maintenance. Understanding its role and functionality is key to maintaining optimal engine performance and longevity.

Function and Operation

The Turbocharger Oil Drain Connection operates within the turbocharger system by providing a pathway for oil drainage. This connection ensures that excess oil, which lubricates the turbocharger’s moving parts, is efficiently drained away. Proper oil management is vital for the turbocharger’s operation, as it helps maintain the correct lubrication levels, thereby reducing wear and tear on the turbocharger components 1. The connection is designed to integrate seamlessly with the turbocharger’s oil system, ensuring that oil is directed away from the turbocharger housing and back into the engine’s lubrication system for recirculation.

Key Features

This Cummins part is constructed with durability and performance in mind. It is typically made from high-quality materials that can withstand the high temperatures and pressures present in a turbocharger environment. The connection features a robust design, often including threaded or quick-connect fittings that ensure a secure and leak-free attachment to the turbocharger and the oil drainage system. Its design may also incorporate features that facilitate easy installation and maintenance, such as accessible drain plugs or valves.

Benefits

The Turbocharger Oil Drain Connection offers several advantages. It enhances oil drainage efficiency, ensuring that the turbocharger remains properly lubricated without excess oil buildup. This contributes to reduced maintenance requirements, as efficient oil management can extend the intervals between service checks. Additionally, by maintaining optimal lubrication, the connection helps to preserve the turbocharger’s performance and longevity, which in turn supports the overall efficiency and reliability of the engine 2.

Installation and Compatibility

Proper installation of the Turbocharger Oil Drain Connection is crucial for its effective operation. Installation procedures may vary depending on the specific turbocharger model and engine type, but generally involve securing the connection to the turbocharger and ensuring it is properly aligned with the oil drainage system. It is important to follow manufacturer guidelines to ensure compatibility and correct installation. Specific requirements or considerations may include torque specifications for tightening connections and ensuring that all seals are intact to prevent leaks.

Maintenance and Troubleshooting

Routine maintenance of the Turbocharger Oil Drain Connection is relatively straightforward but important for ensuring its optimal functioning. Regular checks should include inspecting the connection for signs of wear, corrosion, or leaks. Cleaning the area around the connection can help prevent debris from interfering with its operation. Common issues that may arise include oil leaks, which can often be traced to loose connections or damaged seals. Troubleshooting steps may involve tightening connections, replacing seals, or, in more severe cases, replacing the connection itself.

Safety Considerations

When working with the Turbocharger Oil Drain Connection, it is important to adhere to safety precautions. This includes ensuring that the engine is cool before attempting any maintenance or installation procedures to avoid burns from hot components. Proper handling of the connection and its components is also crucial to prevent damage. Additionally, inspecting the connection for any signs of wear or damage before use can help identify potential issues that could lead to failure during operation.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality, reliability, and innovation in the automotive and heavy-duty truck industry. The company’s product portfolio includes a wide range of engines and components designed to meet the demanding requirements of various applications, from on-highway trucks to off-highway construction equipment and power generation systems. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name in the industry.

Turbocharger Oil Drain Connection (Part 3918670) Compatibility with Cummins Engines

The Turbocharger Oil Drain Connection (Part 3918670) is a critical component in the lubrication system of various Cummins engines. This part ensures that oil is properly drained from the turbocharger, preventing oil accumulation and potential damage. Below is a detailed description of its compatibility with specific Cummins engines:

4B3.9 and B4.5 Engines

The Turbocharger Oil Drain Connection (Part 3918670) is designed to fit seamlessly with the 4B3.9 and B4.5 engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The part’s design ensures efficient oil drainage, maintaining optimal turbocharger operation and extending the engine’s lifespan.

QSB3.9 and 30 CM550 Engines

Similarly, the Turbocharger Oil Drain Connection (Part 3918670) is compatible with the QSB3.9 and 30 CM550 engines. These engines are part of Cummins’ QSB series, which is renowned for its versatility and power across various industries. The part’s integration into these engines ensures that oil is effectively managed, contributing to the overall efficiency and longevity of the engine.

Grouping of Engines

The Turbocharger Oil Drain Connection (Part 3918670) is engineered to fit a range of Cummins engines, including the 4B3.9, B4.5, QSB3.9, and 30 CM550. These engines, while differing in specific applications and configurations, share common design principles that allow for the seamless integration of this part. The compatibility ensures that the turbocharger’s oil drainage system functions optimally, preventing oil-related issues and enhancing engine performance.

Role of Part 3918670 Turbocharger Oil Drain Connection in Engine Systems

The part 3918670 Turbocharger Oil Drain Connection is an essential component in the efficient operation of turbocharger systems within engine assemblies. This component is specifically designed to facilitate the drainage of oil from the turbocharger, ensuring that the lubrication system remains effective and that the turbocharger operates within optimal parameters.

Integration with Turbocharger Plumbing

In the context of turbocharger plumbing, the 3918670 connection serves as a vital junction point. It allows for the controlled release of oil that has lubricated the turbocharger’s moving parts. This oil, after performing its lubricating duties, must be efficiently drained to prevent buildup and potential contamination within the system. The connection point ensures that the oil is directed away from the turbocharger and back into the engine’s oil sump, where it can be recirculated or properly disposed of.

Interaction with Turbocharger Oil System

The turbocharger oil system relies on the 3918670 connection to maintain the integrity of the oil supply. By providing a reliable drainage path, this component helps in preventing oil starvation in the turbocharger bearings and other critical components. It ensures that the oil level within the turbocharger does not exceed safe limits, which could lead to oil leakage or reduced efficiency 3.

Importance in Turbocharger Maintenance

Regular maintenance of the turbocharger system is simplified with the presence of the 3918670 Turbocharger Oil Drain Connection. Mechanics and engineers can easily access this point to perform oil changes or to check for any signs of wear or contamination in the oil. This accessibility is key to prolonging the life of the turbocharger and ensuring that it operates at peak performance.

Enhanced System Reliability

By incorporating the 3918670 connection into the turbocharger and its associated plumbing, engine systems benefit from enhanced reliability. The consistent drainage of oil helps in reducing the risk of turbocharger failure due to lubrication issues. This, in turn, contributes to the overall stability and performance of the engine, making the 3918670 connection a valuable component in the maintenance and operation of turbocharged engines.

Conclusion

The Turbocharger Oil Drain Connection (Part 3918670) plays a significant role in the maintenance and operation of turbocharger systems within Cummins engines. Its efficient design and integration into various engine models ensure optimal oil management, contributing to the longevity and performance of the turbocharger and the engine as a whole. Regular maintenance and proper installation of this part are crucial for ensuring the reliability and efficiency of the engine system.


  1. Hick, H., Kupper, K., & Sorger, H. (2021). Systems Engineering for Automotive Powertrain Development. Springer.

  2. Nunney, M. J. (2007). Light and Heavy Vehicle Technology, Fourth Edition. Butterworth-Heinemann.

  3. Wharton, A. J. (1991). Diesel Engines. Butterworth-Heinemann Ltd.

SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
5.25 x 2.625 x 1.25 in
Weight
0.45 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.