4020943
Air Cleaner
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$5,899.95 $7,020.94

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 4020943 Air Cleaner is a component designed for use in commercial trucks. It serves to filter the air entering the engine, ensuring that only clean air reaches the combustion chambers. This part plays a significant role in maintaining engine efficiency and longevity by preventing contaminants from entering the engine 1.

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 engine. It functions by drawing air through a filtering medium that traps particles such as dust, dirt, and other contaminants. The importance of an air cleaner in the engine system of a truck lies in its ability to protect the engine from abrasive particles that can cause wear and reduce performance 2.

Purpose of the Cummins 4020943 Air Cleaner

The Cummins 4020943 Air Cleaner is specifically engineered to enhance the operation of trucks by ensuring that the engine receives clean air. This contributes to maintaining optimal engine performance and extends the engine’s lifespan by minimizing the intake of harmful particles. The cleaner operates by capturing contaminants, thereby reducing the risk of engine wear and tear 3.

Key Features

The Cummins 4020943 Air Cleaner is characterized by its robust design and the use of high-quality materials. It features a durable housing that protects the filter element, which is made from materials that offer high filtration efficiency. Additionally, the design includes features that facilitate easy installation and maintenance, enhancing its functionality in a commercial truck environment.

Benefits of Using the Cummins 4020943 Air Cleaner

Installing the Cummins 4020943 Air Cleaner offers several advantages. It contributes to improved engine efficiency by ensuring that the air entering the engine is free from contaminants. This can lead to reduced maintenance costs over time, as a cleaner engine operates more efficiently and requires less frequent servicing. Furthermore, the enhanced filtration provided by this air cleaner can contribute to the overall durability of the engine.

Installation Process

Proper installation of the Cummins 4020943 Air Cleaner involves several steps. It is important to ensure that the engine is turned off and that the area around the air cleaner is clean. The old air cleaner should be removed, and the new one should be positioned correctly before securing it in place. Tools required may include basic hand tools for removal and installation. Safety precautions include wearing protective gloves and ensuring that no debris enters the engine during the process.

Maintenance Tips

To ensure the longevity and efficiency of the Cummins 4020943 Air Cleaner, regular maintenance is recommended. This includes periodic inspection of the air cleaner for signs of damage or excessive dirt accumulation. The filter element should be replaced according to the manufacturer’s guidelines or when signs of reduced efficiency are observed. Keeping the air cleaner housing clean and free from obstructions is also important.

Troubleshooting Common Issues

Common problems associated with air cleaners can include reduced filtration efficiency due to a clogged filter or damage to the air cleaner housing. To address these issues, it is important to regularly inspect the air cleaner and replace the filter element as needed. If the housing is damaged, it may need to be repaired or replaced to ensure proper function.

Environmental Impact

The Cummins 4020943 Air Cleaner contributes to reducing emissions by ensuring that the engine operates efficiently with clean air. This can lead to more complete combustion and lower emissions of pollutants. Additionally, by extending the lifespan of the engine and reducing the need for frequent replacements, it promotes environmental sustainability in commercial trucking.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins serves customers in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributor facilities and more than 7,200 dealer locations. The company’s product range includes engines for on-highway, off-highway, and stationary applications, as well as filtration systems that enhance the performance and longevity of engines.

Cummins Air Cleaner 4020943 Compatibility

The Cummins Air Cleaner part number 4020943 is designed to be compatible with a range of Cummins engines. This part is crucial for maintaining optimal engine performance by ensuring that the air entering the engine is clean and free of contaminants.

K19 and K38 Engines

The Cummins Air Cleaner 4020943 is specifically engineered to fit seamlessly with the K19 and K38 engines. These engines, known for their reliability and efficiency, benefit from the air cleaner’s ability to filter out dust, dirt, and other particles that could otherwise cause wear and tear or reduce engine efficiency.

K50 Engine

Similarly, the K50 engine is another model that is compatible with the Cummins Air Cleaner 4020943. This engine, like the K19 and K38, relies on the air cleaner to maintain a clean air supply, which is essential for its operational longevity and performance.

Grouping of Engines

The K19, K38, and K50 engines share common design principles and operational requirements, making the Cummins Air Cleaner 4020943 a versatile component across these models. This compatibility ensures that users can maintain their engines with a single, reliable air cleaner part, simplifying maintenance and ensuring consistent performance.

Role of Part 4020943 Air Cleaner in Engine Systems

The part 4020943 Air Cleaner is an integral component within various engine systems, ensuring optimal performance and longevity. When integrated into an Air Cleaner Assembly, this part works in conjunction with other elements to filter incoming air, removing contaminants that could otherwise damage sensitive engine components.

In an Air Cleaner Kit, the 4020943 Air Cleaner plays a pivotal role by providing a sealed environment that prevents unfiltered air from entering the engine. This is particularly important in maintaining the efficiency of the fuel injection system and preserving the integrity of the engine’s internal components.

When considering an Air Intake System Kit, the 4020943 Air Cleaner contributes to enhanced airflow dynamics. By ensuring that the air entering the engine is clean and unobstructed, it supports better combustion efficiency and overall engine performance.

In a broader context, within an Engine Parts Kit, the inclusion of the 4020943 Air Cleaner is essential for maintaining the balance between performance and protection. It ensures that the engine receives a consistent supply of clean air, which is fundamental for the proper functioning of other interconnected components such as the turbocharger, intercooler, and exhaust system.

Overall, the 4020943 Air Cleaner is a key element in safeguarding the engine against debris and contaminants, thereby supporting the seamless operation of the entire engine system.

Conclusion

The Cummins 4020943 Air Cleaner is a vital component for commercial trucks, ensuring that engines receive clean air to maintain efficiency and longevity. Its robust design, ease of installation, and maintenance benefits make it a valuable asset for truck operators. By understanding its role and importance, users can better appreciate the impact of this Cummins part on engine performance and environmental sustainability.


  1. Bell, Joseph A. Modern Diesel Technology Electricity Electronics. Delmar Cengage Learning, 2014.

  2. Calder, Nigel. Diesel Engine Care and Repair. The McGraw-Hill Companies, 2007.

  3. Parikyan Ed, Tigran. Advances in Engine and Powertrain Research and Technology. Springer Nature, 2022.

SPECIFICATIONS

Package Dimensions
108.0 x 63.0 x 70.0 in
Weight
60 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.