3866009
Air Cleaner
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$2,249.95 $2,677.44

Oversize Item

This is an oversize product. Additional shipping fees may apply.

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

Introduction

The Cummins 3866009 Air Cleaner is a component designed for use in commercial trucks. Its purpose is to filter the air entering the engine, ensuring that only clean air reaches the combustion chambers. This contributes to maintaining engine performance and longevity by preventing contaminants from entering the engine 3.

Basic Concepts of Air Cleaners

An air cleaner, also known as an air filter, is a device that removes impurities from the air entering an internal combustion engine. It functions by drawing air through a filtering medium that traps particles such as dust, dirt, and other contaminants. The role of an air cleaner is vital in maintaining engine performance and longevity, as it helps to protect the engine’s internal components from wear and damage caused by abrasive particles 1.

Purpose of the Cummins 3866009 Air Cleaner

The Cummins 3866009 Air Cleaner plays a role in the operation of a truck by ensuring that the air entering the engine is free from contaminants. This contributes to engine efficiency and protection by maintaining clean combustion, which can lead to better fuel efficiency and reduced engine wear. The air cleaner helps to sustain optimal engine performance by providing a consistent supply of clean air 2.

Key Features

The Cummins 3866009 Air Cleaner is characterized by its robust design and the materials used in its construction. It features a durable housing that protects the filtering element, which is typically made from high-efficiency materials designed to capture a wide range of particle sizes. Unique attributes of this air cleaner may include a high dust-holding capacity and resistance to environmental factors, which enhance its performance in various operating conditions.

Benefits of Using the Cummins 3866009 Air Cleaner

Installing the Cummins 3866009 Air Cleaner can lead to improved engine performance and longevity. The clean air provided by the air cleaner allows for more efficient combustion, which can result in better fuel economy. Additionally, by preventing contaminants from entering the engine, the air cleaner can contribute to reduced maintenance costs and extended engine life 3.

Installation Process

The installation of the Cummins 3866009 Air Cleaner involves several steps. It begins with the removal of the old air cleaner, if present. The new air cleaner is then positioned in the designated location, and any necessary mounting hardware is secured. Specific considerations during installation may include ensuring a proper seal to prevent air leaks and verifying that the air cleaner is correctly aligned with the engine’s air intake system.

Maintenance and Care

Regular maintenance of the Cummins 3866009 Air Cleaner is important to ensure optimal performance and longevity. This includes periodic inspection of the air cleaner housing for any signs of damage or wear. The filtering element should be checked according to the manufacturer’s recommendations and replaced when necessary to maintain efficient filtration. Keeping the air cleaner free from external debris can also contribute to its effective operation.

Troubleshooting Common Issues

Common problems associated with air cleaners can include reduced airflow due to a clogged filter or leaks in the air intake system. To address these issues with the Cummins 3866009 model, one should first inspect the air cleaner element for signs of contamination and replace it if necessary. Checking for and sealing any leaks in the air intake system can also help restore proper airflow to the engine.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and related technologies. With a history of innovation and a commitment to quality, Cummins serves various industries, including commercial trucking, construction, agriculture, and power generation. The company’s product range reflects its dedication to providing reliable and efficient power solutions for its customers.

Cummins Air Cleaner Part 3866009 Compatibility

The Cummins Air Cleaner part number 3866009 is designed to fit seamlessly with several engine models, ensuring optimal air filtration and engine performance. This part is engineered to provide a reliable and efficient air intake system, which is crucial for maintaining the engine’s efficiency and longevity.

K38 Engines

The Cummins Air Cleaner part 3866009 is specifically compatible with the K38 engine series. This compatibility ensures that the air cleaner fits perfectly within the engine’s air intake system, providing the necessary filtration to keep contaminants out of the engine. The design of the air cleaner is tailored to meet the specific airflow and filtration requirements of the K38 engines, ensuring that the engine operates at peak efficiency.

Grouping of Compatible Engines

While the primary focus here is on the K38 engines, it is important to note that the Cummins Air Cleaner part 3866009 is also compatible with other engine models within the Cummins engine family. This part is engineered to fit a range of engines, making it a versatile choice for those looking to upgrade or replace their air cleaner system. The compatibility extends to various engine models that share similar design and operational characteristics with the K38 series, ensuring a broad range of applications.

This compatibility ensures that users can confidently select the Cummins Air Cleaner part 3866009 for their engine needs, knowing that it is designed to fit and perform optimally within the specified engine models.

Role of Part 3866009 Air Cleaner in Engine Systems

The air cleaner, specifically part 3866009, is an essential component in maintaining the efficiency and performance of engine systems. It works in conjunction with several other components to ensure optimal air flow and filtration.

Integration with Air Connection

The air cleaner is directly connected to the air connection, which is the pathway through which air enters the engine. The air cleaner filters out impurities and contaminants from the incoming air, ensuring that only clean air reaches the engine. This filtered air is vital for the combustion process, as it helps in maintaining the correct air-fuel ratio, which is necessary for efficient engine operation.

Interaction with Left and Right Accumulators

In systems where left and right accumulators are present, the air cleaner plays a supportive role in maintaining consistent air pressure. The accumulators store compressed air, which is used to support various engine functions. The clean air supplied by the air cleaner ensures that the accumulators receive uncontaminated air, which helps in preserving the integrity of the stored air and preventing any potential damage to the accumulators or the engine itself.

Overall System Functionality

By providing clean and filtered air, the air cleaner contributes to the overall functionality of the engine system. It helps in reducing wear and tear on engine components, enhances fuel efficiency, and ensures that the engine operates smoothly. The consistent supply of clean air is particularly important in high-performance engines, where even minor impurities can lead to significant issues.

Conclusion

In summary, the Cummins 3866009 Air Cleaner is a key component that works seamlessly with the air connection, left accumulator, and right accumulator to ensure the engine receives the clean air it needs for optimal performance. Regular maintenance and proper installation are crucial to maximizing the benefits of this part, contributing to improved engine efficiency, longevity, and overall system functionality.


  1. Konrad Reif, Automotive Mechatronics, Springer Vieweg, 2015.

  2. Konrad Reif, Fundamentals of Automotive and Engine Technology: Standard Drives, Hybrid Drives, Brakes, Safety Systems, Springer Vieweg, 2014.

  3. Haoran Hu, Simon J Baseley and Xubin Song, Advanced Hybrid Powertrains for Commercial Vehicles Second Edition, SAE International, 2021.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
70.0 x 60.5 x 23.5 in
Weight
7.265 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.