5409388
Lubricating Oil Supply Tube
Cummins®

Introduction

The Lubricating Oil Supply Tube (Part #5409388) manufactured by Cummins is designed to facilitate the efficient delivery of lubricating oil within the engine system of commercial trucks. This part is integral to maintaining the operational integrity and performance of truck engines by ensuring that critical components receive adequate lubrication.

Basic Concepts of Lubricating Oil Supply Tubes

Lubricating oil supply tubes are fundamental components in the lubrication systems of engines. Their primary function is to transport lubricating oil from the oil reservoir to various engine components that require lubrication. This process is vital for reducing friction, minimizing wear, and dissipating heat generated during engine operation ¹. Effective lubrication contributes to the overall performance and longevity of the engine by ensuring smooth operation of moving parts and preventing premature wear and failure.

Purpose and Role in Truck Operation

The Lubricating Oil Supply Tube plays a specific role in the operation of a truck by delivering oil to critical engine components such as bearings, pistons, and other moving parts. This ensures that these components operate within optimal temperature ranges and with minimal friction, which is crucial for the engine’s efficiency and durability. The tube’s design and placement within the engine system are tailored to meet the lubrication needs of the engine under various operating conditions ².

Key Features

This Cummins part is characterized by several key features that enhance its performance and durability. These include a robust material composition designed to withstand high temperatures and pressures, precise engineering to ensure a secure fit within the engine system, and a design that facilitates efficient oil flow. Additionally, the tube may incorporate features such as reinforced sections or specialized coatings to further enhance its resistance to wear and corrosion.

Benefits

Utilizing the Lubricating Oil Supply Tube offers several benefits. It contributes to improved engine lubrication, which in turn reduces wear and tear on engine components. This leads to enhanced overall engine efficiency and longevity. The tube’s design and material properties also contribute to its durability, ensuring reliable performance over the engine’s operational life ³.

Installation Process

Proper installation of the Lubricating Oil Supply Tube is crucial for ensuring optimal performance. The process involves several steps, including preparing the engine compartment, aligning the tube with its designated fitting, and securing it in place using appropriate fasteners. It is important to follow manufacturer guidelines regarding torque specifications and any additional precautions to prevent damage to the tube or surrounding components.

Common Issues and Troubleshooting

Common issues that may arise with the Lubricating Oil Supply Tube include leaks, blockages, or damage to the tube itself. Troubleshooting these issues involves inspecting the tube for signs of wear or damage, checking connections for proper alignment and tightness, and ensuring that the lubrication system is free of contaminants. Addressing these issues promptly can prevent more serious engine problems and ensure continued efficient operation.

Maintenance Tips

To ensure the longevity and reliable performance of the Lubricating Oil Supply Tube, regular maintenance is recommended. This includes periodic inspection for signs of wear or damage, cleaning the tube and surrounding components to prevent buildup of contaminants, and replacing the tube according to manufacturer guidelines or when signs of significant wear are observed. Adhering to these maintenance practices can help maintain the efficiency and reliability of the engine’s lubrication system.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history of innovation and commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range is designed to meet the diverse needs of its customers, with a focus on reliability, performance, and efficiency.

Cummins Engine Part 5409388: Lubricating Oil Supply Tube

The Cummins part number 5409388, which is a Lubricating Oil Supply Tube, is designed to fit seamlessly into the engine systems of the following Cummins engines:

QST30 Engines

• QST30 CM2350 T101
• QST30 CM552

In the QST30 series engines, the lubricating oil supply tube is a critical component that ensures the proper flow of oil from the oil reservoir to the engine’s moving parts. This part is engineered to maintain the integrity of the oil system, preventing leaks and ensuring that the engine operates smoothly and efficiently. The design of the tube allows for precise oil delivery, which is essential for maintaining the engine’s performance and longevity.

The lubricating oil supply tube in the QST30 engines is meticulously crafted to withstand the high temperatures and pressures typical of these engines. Its placement and construction are optimized to facilitate efficient oil circulation, which is vital for the engine’s overall health and operational efficiency. This part is a testament to Cummins’ commitment to quality and reliability, ensuring that the engine’s oil system functions as intended.

Role of Part 5409388 Lubricating Oil Supply Tube in Engine Systems

The Lubricating Oil Supply Tube is an essential component in ensuring the smooth operation of various engine systems. Its primary function is to deliver a consistent flow of lubricating oil to critical parts, thereby reducing friction and wear.

Drive System

In the drive system, the tube ensures that moving parts such as gears, bearings, and shafts receive a steady supply of oil. This lubrication is vital for minimizing friction, which in turn reduces heat generation and enhances the longevity of the drive components.

Front Gear Train Accessory

For the front gear train accessory, the tube plays a significant role in maintaining the efficiency of the gear train. By providing a continuous oil supply, it helps in cooling the gears and reducing the risk of overheating, which can lead to gear failure.

Auxiliary Cooling System

In the auxiliary cooling system, the tube assists in lubricating the moving parts within the cooling mechanism. Efficient lubrication ensures that these components operate smoothly, contributing to the overall effectiveness of the cooling system and preventing potential overheating of the engine.

System Integration

When integrated into the broader engine system, the tube works in conjunction with other lubrication components to maintain optimal oil pressure and flow. This integration is essential for the holistic performance of the engine, ensuring that all moving parts are well-lubricated and operate within their designed parameters.

By understanding the role of the Lubricating Oil Supply Tube in these systems, engineers and mechanics can better appreciate its importance in maintaining engine health and performance.

Conclusion

The Lubricating Oil Supply Tube (Part #5409388) by Cummins is a critical component in the lubrication system of commercial truck engines. Its role in delivering lubricating oil to critical engine components ensures reduced friction, minimized wear, and efficient heat dissipation. Proper installation, regular maintenance, and prompt troubleshooting of common issues are essential for the reliable performance and longevity of this part. Cummins’ commitment to quality and innovation is evident in the design and functionality of the Lubricating Oil Supply Tube, making it a vital part of engine systems in the commercial truck industry.