3102738
BREATHER,CRANKCASE
Cummins®

AVAILABLE

Cummins®

More than 10 are currently available

Ships within 2-4 business days

$539.95 $642.54

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 BREATHER,CRANKCASE Part #3102738 by Cummins is a component designed to facilitate the operation of commercial trucks. Its role is to manage the pressure within the crankcase and prevent contamination, which are vital for maintaining engine health and performance.

Basic Concepts of Crankcase Breathers

A crankcase breather is a device that allows air to enter and exit the crankcase of an engine. Its function is to regulate the pressure inside the crankcase, which helps to maintain a stable environment for the engine’s moving parts. By allowing air to circulate, the breather helps to remove moisture and contaminants that could otherwise accumulate and cause damage 1.

Purpose and Role of the 3102738 BREATHER,CRANKCASE

This Cummins part is specifically designed to play a role in the pressure regulation and contamination prevention within a truck engine. It ensures that the crankcase maintains an optimal pressure level, which is necessary for the efficient operation of the engine. Additionally, it helps to keep the crankcase free from contaminants that could lead to wear and tear on engine components.

Key Features

This part is constructed with a material composition that is resistant to the harsh conditions within an engine environment. Its design includes elements that enhance airflow and filtration, ensuring that only clean air enters the crankcase. Unique attributes such as a durable housing and precise filtration media contribute to its performance and longevity 2.

Benefits of Using the 3102738 BREATHER,CRANKCASE

Utilizing this part can lead to improved engine performance due to its effective pressure regulation and contamination prevention. This component contributes to the longevity of the engine by maintaining a clean and stable crankcase environment. Reliability is enhanced as the breather reduces the risk of engine damage from pressure fluctuations and contamination.

Installation Process

To install the 3102738 BREATHER,CRANKCASE, one should follow a step-by-step approach. This includes ensuring the engine is cool, removing the old breather if present, and attaching the new component according to the manufacturer’s instructions. Tools such as wrenches may be required, and it is important to check for any additional components that may be necessary for a secure fit.

Maintenance and Troubleshooting

Regular maintenance of the 3102738 BREATHER,CRANKCASE involves inspecting it for signs of wear or contamination and cleaning or replacing it as needed. Common issues may include reduced airflow or contamination breakthrough, which can be addressed by cleaning the breather or replacing damaged parts. Following the manufacturer’s guidelines for maintenance will help ensure the longevity and efficiency of the component.

Environmental and Safety Considerations

Proper function of the crankcase breather contributes to reduced emissions by ensuring the engine operates efficiently. Safety precautions during installation and maintenance include wearing appropriate personal protective equipment and ensuring the engine is off and cool. Compliance with industry standards for emissions and safety is maintained through the use of this component 3.

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 a strong reputation in the commercial truck industry, Cummins is known for its high-quality products and commitment to customer satisfaction.

Role of Part 3102738 BREATHER,CRANKCASE in Engine Systems

In the intricate arrangement of an engine system, the 3102738 BREATHER,CRANKCASE assumes a significant role by facilitating the efficient management of gases within the crankcase. This component is integral to maintaining the engine’s performance and longevity.

Integration with the Crankcase Breather System

The crankcase breather system is designed to release unwanted gases and vapors that accumulate within the crankcase. As the engine operates, a mixture of air, fuel, and combustion by-products can enter the crankcase through the clearances around the pistons and crankshaft. The 3102738 BREATHER,CRANKCASE is positioned to allow these gases to escape, preventing a buildup of pressure that could lead to oil leaks, reduced engine efficiency, and potential damage to seals and gaskets.

Interaction with the Engine Arrangement

Within the engine arrangement, the 3102738 BREATHER,CRANKCASE works in concert with other components to ensure optimal engine operation. It is typically connected to the Positive Crankcase Ventilation (PCV) system, which routes the expelled gases back into the intake manifold. This not only helps in reducing emissions but also ensures that any unburned hydrocarbons are re-introduced into the combustion process, enhancing fuel efficiency and reducing environmental impact.

The breather’s design allows it to filter out contaminants from the crankcase vapors, protecting the PCV valve and intake system from debris. This filtration is vital for maintaining the cleanliness of the engine’s internal components, contributing to smoother operation and extended service life.

Conclusion

In summary, the 3102738 BREATHER,CRANKCASE is a key element in the engine’s ventilation system, playing a pivotal role in managing crankcase pressure, filtering contaminants, and contributing to the overall efficiency and reliability of the engine.


  1. Awari, G.K., Kumbhar, V.S., & Tirpude, R.B. (2011). Automotive Systems Principles and Practice. CRC Press.

  2. Ribbens, W.B. (2003). Understanding Automotive Electronics. Elsevier Science.

  3. Goodnight, N., & VanGelder, K. (2019). Automotive Braking Systems CDX Master Automotive Technician Series. Jones Bartlett Learning.

SPECIFICATIONS

Package Dimensions
10.0 x 10.0 x 5.63 in
Weight
3.88 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.