4976523
Throttle Valve
Cummins®

The Cummins 4976523 Throttle Valve is a component designed to regulate the airflow into the engine of heavy-duty trucks. Its role is significant as it helps maintain optimal engine performance and efficiency. Understanding its function and importance can provide insights into how it contributes to the overall operation of these vehicles.

Basic Concepts of Throttle Valves

A throttle valve, also known as a throttle body, is a device used in an internal combustion engine to control the amount of air entering the engine. By regulating airflow, the throttle valve helps manage the engine’s power output and efficiency. It operates by adjusting the position of a butterfly valve within the intake tract, which in turn affects the air-fuel mixture entering the combustion chamber ¹.

Purpose of the Cummins 4976523 Throttle Valve

This Cummins part is specifically engineered to regulate engine performance in heavy-duty trucks. It plays a role in controlling the airflow into the engine, which directly influences the air-fuel ratio. This regulation is vital for ensuring that the engine operates within its designed parameters, contributing to both performance and fuel efficiency.

Key Features

The 4976523 Throttle Valve is characterized by its robust design and the use of high-quality materials. These features contribute to its durability and reliability under the demanding conditions typical of heavy-duty truck operations. The valve’s design includes precision-machined components to ensure smooth operation and accurate airflow control.

Benefits

This part offers several advantages. It provides improved engine control by precisely regulating airflow, which can lead to enhanced fuel efficiency. Additionally, its durable construction ensures long-term reliability, reducing the need for frequent replacements and maintenance ².

Installation Process

Installing the 4976523 Throttle Valve requires careful attention to detail. The process involves disconnecting the old valve, cleaning the intake tract, and securely mounting the new valve. It is important to use the correct tools and follow manufacturer guidelines to ensure a proper fit and function.

Troubleshooting Common Issues

Common issues with throttle valves include sticking or malfunctioning, which can affect engine performance. Troubleshooting steps may involve cleaning the valve, checking for obstructions, or inspecting the electrical connections if the valve is electronically controlled. Regular maintenance can help prevent these issues ³.

Maintenance Tips

To ensure the longevity and optimal performance of the 4976523 Throttle Valve, regular maintenance is recommended. This includes periodic cleaning to remove any buildup that could affect its operation, checking for wear or damage, and ensuring all connections are secure.

Compatibility and Applications

The 4976523 Throttle Valve is designed for use in specific engine models and truck applications. Its compatibility ensures that it meets the performance requirements of these vehicles, contributing to their efficient and reliable operation.

Cummins 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 quality, Cummins has established a reputation for producing reliable and high-performance diesel engines and related components, including the 4976523 Throttle Valve.

Throttle Valve Part 4976523 in Cummins Engines

The Throttle Valve part 4976523, manufactured by Cummins, is a critical component in several engine configurations. This part is integral to the engine’s operation, ensuring that the throttle mechanism functions correctly to regulate the airflow into the engine.

ISB (Chrysler)

The ISB (Chrysler) engine series, developed by Cummins, utilizes the Throttle Valve part 4976523 to manage the engine’s power output. This part is designed to fit seamlessly within the engine’s throttle body, providing precise control over the throttle position. The integration of this valve ensures that the engine responds efficiently to driver inputs, maintaining optimal performance and fuel efficiency.

The Throttle Valve part 4976523 is engineered to work in harmony with the engine’s electronic control unit (ECU), allowing for smooth and responsive throttle operation. This compatibility is crucial for maintaining the engine’s overall performance and reliability, especially in demanding applications where precise control is essential.

By ensuring that the Throttle Valve part 4976523 is correctly installed and functioning, engine operators can expect consistent performance and longevity from their ISB (Chrysler) engines. This part’s design and fitment are critical to the engine’s ability to deliver the power and efficiency that users rely on.

Role of Part 4976523 Throttle Valve in Engine Systems

The 4976523 Throttle Valve is an essential component in the regulation of airflow within engine systems. It is strategically positioned between the air intake connection and the intake manifold. Its primary function is to modulate the volume of air entering the engine, which directly influences the air-fuel mixture.

When the throttle valve opens, it allows a greater volume of air to pass through the air intake connection and into the intake manifold. This increased airflow is essential for higher engine performance, as it enables the engine to consume more fuel and produce more power. Conversely, when the throttle valve closes, it restricts the airflow, which is necessary for idling or reducing engine speed.

The throttle valve works in conjunction with the engine control unit (ECU), which monitors various parameters such as engine load, throttle position, and air-fuel ratio. The ECU sends signals to the throttle valve to adjust its position, ensuring optimal engine performance under varying conditions.

Conclusion

In summary, the 4976523 Throttle Valve plays a significant role in maintaining the correct airflow within the engine system, ensuring efficient combustion and overall engine performance.