3686143
Air Inlet Tube
Cummins®

AVAILABLE

Cummins®

1 is currently available

Ships within 2-4 business days

$134.95 $160.59

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 Air Inlet Tube, part number 3686143, is a component designed for use in commercial truck operations. Cummins, a well-established name in the engine manufacturing industry, produces this part to enhance the performance and efficiency of truck engines. The Air Inlet Tube is integral to the engine’s air intake system, ensuring that the engine receives a consistent and clean supply of air, which is vital for optimal combustion and overall engine health.

Basic Concepts of Air Inlet Tubes

An air inlet tube is a conduit that directs air from the outside environment into the engine’s intake system. Its function is to provide a pathway for air to travel from the air filter to the turbocharger or directly to the engine’s intake manifold. The quality and design of the air inlet tube can influence engine performance by affecting the volume and temperature of the air entering the engine. A well-designed air inlet tube can contribute to more efficient combustion, potentially leading to better fuel economy and increased engine power 1.

Purpose of the Air Inlet Tube 3686143

The Air Inlet Tube 3686143 is specifically engineered to facilitate the flow of air to the engine in commercial trucks. It connects to the air filter and directs air towards the turbocharger or intake manifold. By ensuring a smooth and unobstructed path for air, the tube helps maintain the engine’s air-fuel ratio, which is crucial for efficient combustion and engine performance.

Key Features

The Air Inlet Tube 3686143 is characterized by several distinctive features. It is constructed from durable materials that can withstand the high temperatures and pressures present in a truck’s engine compartment. The design of the tube includes smooth internal surfaces to minimize air turbulence and maximize airflow efficiency. Additionally, the tube may incorporate features such as reinforced joints and heat shielding to enhance its durability and performance under demanding conditions.

Benefits of Using Air Inlet Tube 3686143

Utilizing the Air Inlet Tube 3686143 can offer several advantages to fleet operators. The tube’s design contributes to improved engine efficiency by ensuring a consistent supply of air to the engine. Its durable construction can lead to longer component life, reducing the frequency of replacements and associated costs. Furthermore, the enhanced airflow can potentially improve fuel efficiency, offering cost savings over time.

Installation and Integration

Proper installation of the Air Inlet Tube 3686143 is important to ensure it functions as intended. The tube is designed to be compatible with specific truck models and engine configurations. During installation, it is integrated with other engine components, such as the air filter and turbocharger, to create a seamless air intake system. Adherence to manufacturer guidelines during installation is recommended to maintain the integrity of the engine’s air intake system.

Maintenance and Troubleshooting

Routine maintenance of the Air Inlet Tube 3686143 is important to ensure its longevity and optimal performance. This includes regular inspections for signs of wear, damage, or leaks. Cleaning the tube and ensuring that all connections are secure can help prevent issues such as reduced airflow or engine performance. Troubleshooting common issues may involve checking for obstructions in the tube, verifying the integrity of connections, and addressing any signs of wear or damage promptly.

Performance Impact

The Air Inlet Tube 3686143 can influence various aspects of truck performance. By ensuring a consistent and clean supply of air to the engine, it can contribute to more efficient combustion, which may lead to improvements in fuel efficiency and engine power. Additionally, the tube’s role in the engine’s air intake system can affect overall reliability, as a well-functioning air intake system is foundational to engine health.

Environmental Considerations

The use of the Air Inlet Tube 3686143 can have environmental benefits. By contributing to more efficient engine operation, it may help reduce fuel consumption and, consequently, emissions. This aligns with efforts to promote sustainable fleet operations and reduce the environmental impact of commercial trucking.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for innovation and quality in the engine technology industry. The company is committed to advancing engine technology to meet the evolving needs of its customers and contribute to a more sustainable future.

Cummins Engine Air Inlet Tube 3686143 Compatibility

The Cummins Air Inlet Tube part number 3686143 is designed to fit a variety of Cummins engines, ensuring a secure and efficient air supply to the engine’s intake system. This part is crucial for maintaining optimal engine performance and efficiency.

ISX15 Series Engines

The Air Inlet Tube 3686143 is compatible with the following ISX15 series engines:

  • ISX15 CM2250
  • ISX15 CM2250 SN
  • ISX15 CM2350 X101

These engines are known for their robust performance and are widely used in heavy-duty applications. The Air Inlet Tube ensures that the engine receives the correct amount of air, which is essential for combustion efficiency and overall engine health.

QSX15 Series Engines

Similarly, the Air Inlet Tube 3686143 fits the following QSX15 series engines:

  • QSX15 CM2250 ECF
  • QSX15 CM2350 X105

These engines are designed for applications requiring high power output and reliability. The Air Inlet Tube plays a vital role in maintaining the air-fuel mixture, which is critical for the engine’s performance and longevity.

By ensuring a proper fit and function, the Air Inlet Tube 3686143 helps maintain the efficiency and reliability of these Cummins engines, making it an essential component for both maintenance and performance.

Role of Part 3686143 Air Inlet Tube in Engine Systems

The Part 3686143 Air Inlet Tube is integral to the efficient operation of various engine systems, particularly in the context of plumbing and compressor air inlet applications.

In plumbing systems, this component ensures a steady and uninterrupted flow of air into the engine, which is essential for maintaining optimal pressure levels. It connects to the air filter housing and routes clean, filtered air to the engine’s intake manifold. This consistent airflow is vital for the combustion process, directly influencing engine performance and fuel efficiency.

When integrated into compressor air inlet systems, the Air Inlet Tube plays a similarly significant role. It facilitates the smooth transfer of compressed air from the compressor to the engine, ensuring that the air reaches the necessary pressure and temperature conditions before entering the combustion chamber. This not only enhances the efficiency of the compressor but also contributes to the overall reliability and longevity of the engine system.

In both applications, the Air Inlet Tube’s design and material properties are tailored to withstand the specific demands of the engine environment, including variations in temperature, pressure, and exposure to contaminants. Its role in maintaining a consistent and clean air supply is fundamental to the efficient and effective operation of the engine systems it serves.

Conclusion

The Cummins Air Inlet Tube, part number 3686143, plays a crucial role in the efficient operation of commercial truck engines. By ensuring a consistent and clean supply of air to the engine, it contributes to more efficient combustion, improved fuel efficiency, and enhanced engine performance. Proper installation, maintenance, and understanding of its compatibility with various Cummins engines are essential for maximizing the benefits of this component.


  1. Robinson, A., & Livesey, A. (2006). The Repair of Vehicle Bodies Fifth Edition. Elsevier.

SPECIFICATIONS

Package Dimensions
8.5 x 1.3 x 1.0 in
Weight
0.7 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.