3915867
Clutch Disc
Cummins®

The Cummins 3915867 Clutch Disc is a component designed for use in commercial trucks. It plays a role in the operation of these vehicles by facilitating the transmission of power from the engine to the transmission. Understanding its function and significance is important for maintaining the efficiency and reliability of commercial trucks.

Basic Concepts of Clutch Discs

A clutch disc is a key component within the clutch system of a truck. It consists of several parts, including friction materials, a metal backing plate, and springs. The clutch disc operates between the pressure plate and the flywheel. When the clutch pedal is depressed, the pressure plate releases the clutch disc, allowing the engine and transmission to disconnect. Releasing the pedal re-engages the clutch, connecting the engine and transmission and allowing power to be transmitted ¹.

Purpose of the Cummins 3915867 Clutch Disc

This Cummins part is designed to facilitate the smooth transmission of power from the engine to the transmission in commercial trucks. It enables the engagement and disengagement of the clutch, which is necessary for shifting gears and controlling the vehicle’s movement. This component ensures that power is efficiently transferred, contributing to the overall performance and drivability of the truck.

Key Features

The 3915867 features a design that includes high-quality friction materials and a robust metal backing plate. These materials are chosen for their ability to withstand the high stresses and temperatures encountered in commercial truck operations. The design also incorporates springs that help in the even distribution of clamping force, enhancing the disc’s performance and durability.

Benefits

The 3915867 offers several benefits, including improved performance in power transmission, enhanced durability under heavy-duty conditions, and increased efficiency. These attributes contribute to the reliable operation of commercial trucks, reducing downtime and maintenance costs.

Installation Process

Installing this part involves several steps. First, the old clutch disc must be removed, which requires disconnecting it from the flywheel and pressure plate. The new disc is then aligned with these components and secured in place. It is important to follow the manufacturer’s guidelines to ensure proper installation and function.

Maintenance and Troubleshooting

To ensure the optimal performance and longevity of the 3915867, regular maintenance is recommended. This includes checking for signs of wear or damage, ensuring proper alignment, and addressing any issues promptly. Common problems may include slipping or difficulty in engaging the clutch, which can often be resolved through adjustment or replacement of worn components.

Performance in Various Conditions

The 3915867 is designed to perform effectively under a range of driving conditions. It can handle heavy loads, operate on varying terrains, and withstand extreme temperatures. This versatility makes it suitable for use in diverse commercial truck applications.

Cummins Overview

Cummins Inc. is a well-established company with a strong reputation in the automotive and commercial truck industry. Founded in 1919, Cummins has a history of innovation and quality in engine and powertrain technologies. The company’s commitment to excellence is reflected in its products, including the 3915867 ².

Compatibility of Clutch Disc Part 3915867 with Cummins Engines

The Clutch Disc part number 3915867, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This clutch disc is engineered to provide optimal performance and durability, ensuring smooth operation and longevity in various applications.

4B3.9 Engine Series

The 4B3.9 engine series is one of the key applications for the Clutch Disc part 3915867. This series is known for its robust design and reliability, making it a popular choice in heavy-duty applications. The clutch disc is specifically tailored to match the unique specifications of the 4B3.9 engine, ensuring a perfect fit and efficient power transmission.

Grouping of Compatible Engines

While the 4B3.9 engine is a notable example, the Clutch Disc part 3915867 is also compatible with other Cummins engines within the same performance and design parameters. These engines share similar internal components and operational requirements, allowing the clutch disc to function effectively across multiple models.

Installation and Performance

When installed in a Cummins engine, the Clutch Disc part 3915867 plays a role in the engine’s power transmission system. It ensures that the engine’s rotational power is efficiently transferred to the transmission, facilitating smooth gear changes and overall vehicle operation. The design of the clutch disc allows for precise engagement and disengagement of the clutch, contributing to the engine’s performance and longevity.

Role of Part 3915867 Clutch Disc in Engine Systems

The 3915867 is an integral component in the operation of the clutch system, particularly in rear-wheel drive configurations. This part works in conjunction with the pressure plate and the flywheel to facilitate the transfer of power from the engine to the transmission.

When the driver engages the clutch pedal, the 3915867 disconnects the engine from the transmission, allowing the driver to change gears smoothly. Upon release of the pedal, the disc re-engages, transmitting engine torque to the transmission input shaft.

In rear-wheel drive systems, the 3915867 ensures that power is efficiently delivered to the rear wheels. This is particularly important in vehicles where rear-wheel drive is the standard configuration, as it directly impacts vehicle performance and drivability.

The interaction between the 3915867 and other components such as the clutch cover, throw-out bearing, and pilot bearing is essential for the seamless operation of the clutch system. Proper maintenance and timely replacement of the 3915867 are necessary to ensure consistent clutch performance and to prevent undue wear on associated components ³.

Conclusion

The Cummins 3915867 Clutch Disc is a vital component in the operation of commercial trucks, ensuring efficient power transmission and reliable performance. Its design, featuring high-quality materials and precise engineering, allows it to withstand the demanding conditions of heavy-duty applications. Regular maintenance and proper installation are key to maximizing the lifespan and performance of this part, contributing to the overall efficiency and reliability of commercial truck operations.