2891785
Breather Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$619.95 $737.74

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 Cummins 2891785 Breather Tube is a vital component in the maintenance and operation of commercial truck engines. It ensures the engine operates under optimal conditions, contributing to its efficiency and longevity.

Basic Concepts of Breather Tubes

A breather tube, such as the Cummins 2891785, is designed to equalize pressure within an engine’s crankcase. It vents excess pressure and prevents the accumulation of contaminants like moisture and debris, which could otherwise cause engine damage 1.

Purpose of the 2891785 Breather Tube

The primary function of this Cummins part is to maintain pressure equilibrium within the engine compartment. It releases excess pressure generated during engine operation, preventing damage to engine components. Additionally, it filters out impurities, contributing to the engine’s overall health and performance 2.

Key Features

Constructed from high-quality materials, the Cummins 2891785 Breather Tube is designed for durability and reliable performance. Its robust build can withstand the rigors of commercial truck operation, providing effective pressure relief and contamination control 3.

Benefits of Using the 2891785 Breather Tube

Incorporating the 2891785 Breather Tube into a truck’s engine system can lead to improved engine performance. It maintains optimal pressure levels within the engine, resulting in smoother operation and potentially increased fuel efficiency. Additionally, by preventing contamination, it contributes to the extended lifespan of engine components and enhances overall engine reliability.

Installation and Compatibility

Proper installation of the 2891785 Breather Tube is crucial for its optimal performance. It is designed to be compatible with Cummins engines, and specific guidelines should be followed for effective integration into the engine system. Attention to detail during installation ensures desired outcomes in terms of engine performance and durability.

Maintenance and Troubleshooting

Routine maintenance of the 2891785 Breather Tube is recommended to ensure its continued effectiveness. This includes regular inspections for wear or damage and cleaning or replacing the tube as necessary. Troubleshooting common issues like leaks or blockages helps maintain the breather tube’s functionality and contributes to the engine’s overall performance.

Environmental and Operational Considerations

Environmental factors and operational conditions can impact the performance of the 2891785 Breather Tube. Exposure to extreme temperatures, humidity, or dust can affect its functionality. Strategies for mitigating these challenges may include regular maintenance, using protective covers, or selecting materials resistant to environmental degradation. Understanding these factors helps optimize the breather tube’s performance in various operational scenarios.

Cummins: A Brief Overview

Cummins Inc. is a global leader in designing, manufacturing, and distributing engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins serves various markets, including commercial truck, bus, construction, agricultural, and power generation. The company’s product range includes a variety of engines and components designed to meet the demanding requirements of these industries.

Cummins Breather Tube 2891785 Compatibility

The Cummins Breather Tube part number 2891785 is designed to fit seamlessly with various Cummins engines, ensuring efficient and reliable operation. This part is crucial for maintaining the health of the engine by allowing the release of gases and preventing the buildup of pressure within the engine’s crankcase.

QSK19 Engine

The QSK19 engine, known for its robust performance and reliability, integrates the Breather Tube 2891785 as a key component. This part ensures that the engine operates smoothly by managing pressure and gases effectively.

CM2350 Engine

Similarly, the CM2350 engine benefits from the inclusion of the Breather Tube 2891785. This part is engineered to fit perfectly within the engine’s design, providing essential functionality that supports the engine’s overall performance.

K105 Engine

The K105 engine also utilizes the Breather Tube 2891785, which is integral to its operation. This part is designed to fit the specific requirements of the K105 engine, ensuring that it performs optimally under various conditions.

Grouping of Engines

When considering the QSK19, CM2350, and K105 engines together, it is evident that the Breather Tube 2891785 is a versatile and essential component. These engines, while distinct in their applications and specifications, all rely on this part to maintain proper engine function and longevity. The Breather Tube 2891785 is engineered to meet the demands of each engine type, ensuring compatibility and performance across the board.

Role of Part 2891785 Breather Tube in Engine Systems

The 2891785 Breather Tube is an essential component in the arrangement of engine systems, specifically within the crankcase breather system. It facilitates the release of gases that accumulate within the crankcase during engine operation.

In the crankcase breather system, the Breather Tube allows for the safe venting of these gases, which typically include a mixture of air, fuel vapors, and combustion byproducts. This venting process is important for maintaining the proper pressure within the crankcase, which in turn ensures the efficient operation of the engine’s internal components.

The Breather Tube is integrated into the system in such a way that it connects to the crankcase and routes the expelled gases to a location where they can be either released into the atmosphere or recirculated back into the intake system. This integration helps in reducing the overall emissions from the engine and contributes to a more environmentally friendly operation.

Additionally, the Breather Tube plays a role in preventing the buildup of moisture and contaminants within the crankcase. By allowing these substances to escape, it helps in prolonging the lifespan of the engine’s internal parts and maintaining optimal performance.

Conclusion

In summary, the 2891785 Breather Tube is a key element in the effective management of crankcase pressures and the overall health of the engine system. Its role in maintaining pressure equilibrium, preventing contamination, and ensuring the efficient operation of the engine makes it an indispensable component in commercial truck engines.


  1. Rendle, S., & Randall, M. (2000). Haynes Diesel Engine Systems and Data Book. Haynes Publishing.

  2. Goodnight, N., & Van Gelder, K. (2018). Automotive Braking Systems. Jones & Bartlett Learning.

  3. Fischer, R., Kucukay, F., Jurgens, G., Najork, R., & Pollak, B. (2015). The Automotive Transmission Book Powertrain. Springer.

SPECIFICATIONS

Package Dimensions
11.25 x 3.0 x 1.25 in
Weight
0.165 lb
* 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.