3688355
Air Intake Manifold
Cummins®

The Cummins Air Intake Manifold, part number 3688355, is a component designed for heavy-duty trucks. It plays a role in the engine’s operation by facilitating the distribution of air into the combustion chambers. This part is integral to maintaining the engine’s efficiency and performance, ensuring that the truck operates smoothly under various conditions.

Basic Concepts of Air Intake Manifolds

An air intake manifold is a part of the engine that distributes the air-fuel mixture into the combustion chambers of an internal combustion engine. It connects to the throttle body or carburetor and branches out into individual runners for each cylinder. The manifold’s design affects the engine’s performance by influencing how air flows into the cylinders, which in turn impacts combustion efficiency and power output ¹.

Purpose of the Cummins Air Intake Manifold

The Cummins Air Intake Manifold, part number 3688355, is engineered to enhance the engine’s performance in heavy-duty trucks. It plays a role in the engine’s air induction system by ensuring a consistent and efficient distribution of air to each cylinder. This contributes to better combustion, which can lead to improved engine efficiency and overall performance. The manifold is designed to withstand the demanding conditions typical of heavy-duty truck operations.

Key Features

The Cummins Air Intake Manifold, part number 3688355, is constructed from durable materials that are resistant to high temperatures and mechanical stress. Its design includes precise engineering to optimize airflow and reduce turbulence, which can enhance engine performance. Additionally, the manifold may feature unique characteristics such as integrated sensors or a design that facilitates easier installation and maintenance.

Benefits

The Cummins Air Intake Manifold, part number 3688355, offers several benefits. It contributes to improved engine performance by ensuring a more uniform distribution of air to the cylinders. This can result in more efficient combustion and potentially better fuel efficiency. The manifold’s robust construction also adds to its durability, making it a reliable component for heavy-duty applications.

Installation Process

Installing the Cummins Air Intake Manifold, part number 3688355, involves several steps. First, the old manifold must be removed, which may require disconnecting various hoses and electrical connections. Once the area is clear, the new manifold can be positioned and secured in place. It is important to follow the manufacturer’s instructions closely to ensure a proper fit and function. Specific tools may be required for certain steps, such as torque wrenches for tightening bolts to the specified torque settings.

Common Issues and Troubleshooting

Common issues with the Cummins Air Intake Manifold, part number 3688355, may include leaks at the gaskets, cracks in the manifold itself, or problems with integrated sensors. Troubleshooting typically involves inspecting the manifold for visible damage, checking connections for leaks, and using diagnostic tools to read any error codes related to the air intake system. Solutions may range from replacing gaskets to repairing or replacing the manifold.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins Air Intake Manifold, part number 3688355, regular maintenance is recommended. This includes inspecting the manifold for signs of wear or damage, cleaning it to remove any buildup that could obstruct airflow, and checking all connections for leaks. Following the manufacturer’s maintenance schedule can help prevent issues and ensure the manifold continues to function efficiently.

Cummins Overview

Cummins is a well-established company in the automotive and heavy-duty truck industry, known for its high-quality components and engines. With a history of innovation and commitment to excellence, Cummins has built a reputation for producing reliable and efficient parts. The company’s focus on research and development ensures that its products, like the Cummins Air Intake Manifold, part number 3688355, meet the demanding requirements of heavy-duty applications.

Compatibility with Cummins Engines

The Cummins Air Intake Manifold, part number 3688355, is designed to fit a range of Cummins engine models. This part is integral to the engine’s air intake system, ensuring efficient airflow into the engine’s combustion chambers.

ISX15 Series

• ISX15 CM2250 SN
• ISX15 CM2350 X101

The Air Intake Manifold part 3688355 is compatible with both the ISX15 CM2250 SN and ISX15 CM2350 X101 engines. These engines are part of the ISX15 series, known for their robust performance and reliability in heavy-duty applications.

QSX15 Series

• QSX15 CM2250
• QSX15 CM2350 X105

The QSX15 series engines, including the QSX15 CM2250 and QSX15 CM2350 X105, are also compatible with the Air Intake Manifold part 3688355. These engines are designed for medium-duty applications, providing a balance of power and efficiency.

X15 Series

• X15 CM2350 X116B
• X15 CM2350 X123B
• X15 CM2450 X134B

The X15 series engines, which include the X15 CM2350 X116B, X15 CM2350 X123B, and X15 CM2450 X134B, are also designed to work with the Air Intake Manifold part 3688355. These engines are typically used in a variety of applications, from vocational to on-highway uses, offering flexibility and performance.

Each of these engines benefits from the Air Intake Manifold part 3688355, which ensures optimal airflow and engine performance. This compatibility underscores the versatility and robustness of Cummins’ design, making it a reliable choice for various heavy-duty and medium-duty applications.

Role of the Cummins Air Intake Manifold in Engine Systems

The Cummins Air Intake Manifold, part number 3688355, is integral to the efficient operation of an engine system. It serves as a conduit for air, directing it from the air filter to the engine’s cylinders. This part ensures a uniform distribution of air across all cylinders, which is essential for balanced combustion.

In conjunction with the throttle body, the air intake manifold regulates the amount of air entering the engine, directly influencing the air-fuel mixture. This regulation is vital for maintaining optimal engine performance under varying load conditions.

The air intake manifold also interfaces with the fuel injectors, ensuring that the air and fuel are properly mixed before entering the combustion chamber. This interaction is key to achieving efficient combustion and maximizing engine power output.

Furthermore, the design of the air intake manifold can impact the engine’s thermal efficiency. By managing the temperature of the incoming air, it helps in reducing the likelihood of engine knocking and other performance issues.

In summary, the Cummins Air Intake Manifold, part number 3688355, plays a significant role in the engine’s air management system, working in harmony with components like the throttle body, fuel injectors, and combustion chambers to ensure smooth and efficient engine operation.

Conclusion

The Cummins Air Intake Manifold, part number 3688355, is a critical component in the air management system of heavy-duty truck engines. Its design and construction ensure efficient airflow and optimal engine performance. Regular maintenance and proper installation are essential to maximize the benefits of this part, contributing to the overall reliability and efficiency of the engine system.