5303074
Turbocharger Oil Drain Connection
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$59.95 $71.34

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 (5303074) by Cummins is a component designed to facilitate the drainage of oil from the turbocharger system in heavy-duty trucks. This Cummins part is integral to the efficient operation and maintenance of the turbocharger, ensuring that the system operates smoothly and effectively.

Basic Concepts

Turbochargers are devices that increase the efficiency and power output of diesel engines by compressing the intake air before it enters the combustion chamber. This process enhances the engine’s performance by allowing more air and fuel to be burned in each cycle. Oil lubrication plays a vital role in maintaining turbocharger performance by reducing friction between moving parts, cooling the turbocharger, and sealing the compressor and turbine ends 1.

Purpose of the Turbocharger Oil Drain Connection

The Turbocharger Oil Drain Connection serves a specific function within the turbocharger system by allowing for the periodic drainage of oil. This process is important for removing contaminants and ensuring that the oil remains clean and effective. By facilitating regular oil changes, the Turbocharger Oil Drain Connection helps maintain the integrity and efficiency of the turbocharger system 2.

Key Features

The 5303074 Turbocharger Oil Drain Connection is characterized by several key features that enhance its performance and durability. These include a robust design that ensures reliable operation under the demanding conditions of heavy-duty truck engines. The connection is made from high-quality materials that resist corrosion and wear, ensuring long-term reliability. Additionally, the design incorporates features that simplify the oil drainage process, making maintenance more straightforward.

Benefits

The Turbocharger Oil Drain Connection offers several advantages that contribute to the overall efficiency and reliability of heavy-duty truck engines. By enabling efficient oil drainage, it helps maintain optimal turbocharger performance, which in turn enhances engine efficiency. Regular oil changes facilitated by this connection can reduce maintenance requirements and extend the lifespan of the turbocharger. Furthermore, clean oil ensures that the turbocharger operates smoothly, contributing to the longevity of the entire engine system 3.

Installation and Compatibility

Proper installation of the Turbocharger Oil Drain Connection is important to ensure its effective operation and compatibility with various turbocharger models. Installation guidelines should be followed to avoid common pitfalls and ensure that the connection is securely fitted. Compatibility with different turbocharger models may vary, so it is important to consult specific guidelines to ensure the correct fit and function.

Maintenance and Troubleshooting

Routine maintenance practices are important to ensure the optimal performance of the Turbocharger Oil Drain Connection. Regular inspections and oil changes are recommended to prevent buildup and contamination. Troubleshooting common issues, such as leaks or blockages, can often be resolved by following maintenance guidelines and addressing problems promptly.

Common Issues and Solutions

Frequent problems associated with Turbocharger Oil Drain Connections may include leaks, blockages, or corrosion. Practical solutions to these issues involve regular maintenance, such as cleaning and inspecting the connection for signs of wear or damage. Preventive measures, such as using high-quality oil and following recommended maintenance schedules, can help avoid these common problems.

Cummins Overview

Cummins Inc. is a well-established company with a rich history in the automotive industry, particularly known for its diesel engines and components. The company offers a wide range of products designed to meet the demanding requirements of heavy-duty applications. Cummins is recognized for its commitment to quality, innovation, and customer satisfaction, making it a trusted name in the industry.

Turbocharger Oil Drain Connection for Cummins Engines

The turbocharger oil drain connection part 5303074, manufactured by Cummins, is a critical component in the lubrication system of various Cummins engines. This part ensures that oil is properly drained from the turbocharger, maintaining optimal engine performance and longevity.

L8.9 Series Engines

The part 5303074 fits seamlessly with the L8.9 series engines, including:

  • L8.9 CM2670 L134C
  • L8.9 L121

These engines benefit from the efficient oil drainage facilitated by this part, ensuring that the turbocharger operates smoothly and without overheating.

L9.3 and L9.5 Series Engines

The turbocharger oil drain connection is also compatible with the following engines:

  • L9.3 L105
  • L9.5 L117

In these engines, the part 5303074 plays a role in maintaining the integrity of the turbocharger’s lubrication system, preventing oil build-up and ensuring consistent performance.

QSC8.3 and QSL9 Series Engines

For the QSC8.3 and QSL9 series engines, the part 5303074 is used in the following models:

  • QSC8.3 CM2880 C102
  • QSL9 CM850 (CM2850)
  • QSL9.3 CM2880 L113

These engines rely on the efficient oil drainage provided by the part 5303074 to maintain optimal turbocharger operation, contributing to the overall reliability and efficiency of the engine.

Role of Part 5303074 Turbocharger Oil Drain Connection in Engine Systems

The Turbocharger Oil Drain Connection, part number 5303074, is a component in the maintenance and operation of turbocharger systems within engine assemblies. This part facilitates the drainage of oil from the turbocharger, ensuring that the lubrication system remains efficient and that the turbocharger operates within optimal parameters.

Integration with Turbocharger Plumbing

In the context of turbocharger plumbing, the Turbocharger Oil Drain Connection is strategically positioned to interface with the oil return lines. Its primary function is to allow the used oil, which has lubricated the turbocharger’s moving parts, to be efficiently drained back into the engine’s oil sump. This process is vital for maintaining the oil’s quality and ensuring that the turbocharger receives fresh lubrication.

Interaction with the Turbocharger

The Turbocharger Oil Drain Connection is directly connected to the turbocharger’s oil supply and return circuits. It plays a role in the oil management system by providing a controlled pathway for oil to exit the turbocharger. This is particularly important during periods of high-stress operation, where the turbocharger’s bearings and seals require consistent lubrication to prevent wear and ensure longevity.

Contribution to Overall Engine Performance

By ensuring that the turbocharger’s oil system is well-maintained, the Turbocharger Oil Drain Connection indirectly contributes to the overall performance and reliability of the engine. Proper oil drainage prevents oil contamination and buildup, which can lead to decreased efficiency and potential damage to the turbocharger. Additionally, it helps in maintaining the correct oil level within the turbocharger, which is essential for optimal performance and longevity of the component.

Conclusion

In summary, the Turbocharger Oil Drain Connection, part 5303074, is a component in the turbocharger’s oil management system. Its proper function ensures efficient lubrication, contributes to the turbocharger’s durability, and supports the engine’s overall performance.


  1. Lakshminarayanan, P. A., & Nayak, N. S. (2011). Critical Component Wear in Heavy Duty Engines. John Wiley & Sons.

  2. Dempsey, P. (2018). Troubleshooting and Repairing Diesel Engines, 5th Edition. McGraw-Hill.

  3. Kasab, J., & Strzelec, A. (2020). Automotive Emissions Regulations and Exhaust Aftertreatment Systems. SAE International.

SPECIFICATIONS

Package Dimensions
56.0 x 7.2 x 3.0 in
Weight
0.196 lbs

BILL OF MATERIALS

Name Quantity Part Number
O Ring Seal
* 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.