5255736
Breather Tube
Cummins®

Introduction

The Cummins 5255736 Breather Tube is a component designed for use in commercial trucks. It serves a specific function within the engine system, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and operation is key to maintaining the health and performance of the truck’s engine.

Basic Concepts of Breather Tubes

Breather tubes are components found in engine systems that allow for the release of pressure and the expulsion of moisture and contaminants from the crankcase. They play a role in maintaining engine health by ensuring that the internal environment of the engine remains clean and free from excessive pressure, which can lead to damage or reduced efficiency ¹.

Purpose of the Cummins 5255736 Breather Tube

The Cummins 5255736 Breather Tube is designed to facilitate pressure equalization within the engine’s crankcase and to expel moisture and contaminants. By allowing air to enter and exit the crankcase as needed, it helps maintain a stable internal pressure. This function is vital for the proper operation of the engine, as it prevents the buildup of pressure that could lead to leaks or damage to engine seals and gaskets. Additionally, by expelling moisture and contaminants, the breather tube contributes to the longevity of engine components by reducing the risk of corrosion and wear ².

Key Features

The Cummins 5255736 Breather Tube is constructed from durable materials that are resistant to the high temperatures and pressures found within an engine environment. Its design includes features that enhance its performance and durability, such as a robust connection mechanism that ensures a secure fit within the engine system. These attributes contribute to the breather tube’s ability to withstand the demands of commercial truck operation.

Benefits

Incorporating the Cummins 5255736 Breather Tube into a truck’s engine system offers several advantages. It contributes to improved engine performance by ensuring optimal pressure levels within the crankcase. This, in turn, can lead to extended component lifespan, as the engine operates under more stable conditions. Additionally, the breather tube enhances the reliability of the engine system, providing consistent performance across a range of operating conditions.

Installation and Integration

Proper installation of the Cummins 5255736 Breather Tube is crucial for its effective operation. It should be integrated into the engine system according to the manufacturer’s guidelines, ensuring that all connections are secure and that the tube is correctly positioned to facilitate pressure equalization and moisture expulsion. Preparations may include cleaning the installation area and inspecting the tube for any damage prior to installation.

Troubleshooting and Maintenance

Regular maintenance of the Cummins 5255736 Breather Tube is important for ensuring its continued performance. This includes checking for signs of wear or damage, such as cracks or leaks, and ensuring that the tube remains securely connected to the engine system. Troubleshooting common issues may involve inspecting the tube for blockages or contaminants that could impede its function.

Common Misconceptions

There are several misconceptions regarding breather tubes and their function within engine systems. One common misunderstanding is that breather tubes are merely vents for releasing pressure, without recognizing their role in expelling moisture and contaminants. It’s important to understand that breather tubes serve a dual purpose, contributing to both pressure equalization and the maintenance of a clean engine environment.

Environmental Impact

The use of breather tubes, including the Cummins 5255736, has environmental considerations. By facilitating the expulsion of moisture and contaminants from the engine, breather tubes contribute to reduced emissions by ensuring that the engine operates efficiently. Additionally, proper maintenance and disposal practices for breather tubes can minimize their environmental impact.

Cummins 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 commitment to innovation and quality, Cummins serves customers in approximately 190 countries and territories, providing products and services that drive progress in the transportation, construction, mining, oil and gas, and power generation industries.

Compatibility with Cummins Engines

The Breather Tube part number 5255736, manufactured by Cummins, is designed to fit a range of Cummins engines. This part is crucial for maintaining the proper ventilation and pressure balance within the engine’s crankcase. Below is a detailed breakdown of the engines with which this breather tube is compatible:

ISC CM2150 and ISL CM2150

The Breather Tube part 5255736 is compatible with the ISC CM2150 and ISL CM2150 engines. These engines are part of Cummins’ lineup of medium-duty diesel engines, known for their reliability and efficiency in various applications, from construction equipment to agricultural machinery.

ISC8.3 CM2250 and ISL9 CM2250

This breather tube also fits the ISC8.3 CM2250 and ISL9 CM2250 engines. These engines are part of Cummins’ next-generation offerings, providing enhanced performance and fuel efficiency. They are typically used in heavy-duty applications such as trucks, buses, and industrial equipment.

QSC9 CM2250/QSL9 CM2250 and QSL9 CM2350 L102

The part 5255736 is also compatible with the QSC9 CM2250, QSL9 CM2250, and QSL9 CM2350 L102 engines. These engines are designed for high-performance applications, often found in on-highway and off-highway vehicles, as well as in marine and power generation sectors.

Grouping by Application

The breather tube part 5255736 is versatile and fits into several categories of Cummins engines:

• Medium-Duty Engines: ISC CM2150, ISL CM2150
• Next-Generation Engines: ISC8.3 CM2250, ISL9 CM2250
• High-Performance Engines: QSC9 CM2250, QSL9 CM2250, QSL9 CM2350 L102

Each of these engines benefits from the breather tube’s role in managing crankcase pressure and preventing contamination, ensuring optimal engine performance and longevity.

Role of Part 5255736 Breather Tube in Engine Systems

The Part 5255736 Breather Tube is an essential component in maintaining the health and efficiency of engine systems, particularly in relation to the crankcase. This tube facilitates the release of pressure that builds up within the crankcase as the engine operates.

As the pistons move within the cylinders, they create not only power but also a certain amount of blow-by gases. These gases, consisting of unburnt fuel, combustion byproducts, and moisture, enter the crankcase. If not properly managed, this pressure can lead to oil leaks, reduced lubrication efficiency, and even engine damage over time.

The Breather Tube addresses this issue by providing a controlled pathway for these gases to escape. It is typically connected to the crankcase ventilation system, which may include components such as the Positive Crankcase Ventilation (PCV) valve. The PCV valve regulates the flow of these gases, ensuring they are either re-routed back into the intake manifold to be burned again or expelled from the engine compartment.

In addition to pressure relief, the Breather Tube helps in maintaining a clean crankcase environment. By allowing moisture and contaminants to escape, it prevents the formation of sludge, which can otherwise impair the performance of moving parts within the crankcase.

Overall, the integration of the Part 5255736 Breather Tube into engine systems ensures optimal crankcase pressure management, contributes to engine longevity, and supports efficient operation of the lubrication system.

Conclusion

The Cummins 5255736 Breather Tube plays a vital role in the maintenance and efficiency of commercial truck engines. By facilitating pressure equalization and expelling moisture and contaminants from the crankcase, it contributes to engine longevity and reliable performance. Proper installation, maintenance, and understanding of its function are essential for maximizing the benefits of this component.