4089804
Connection Rod Bearing (.25) Set
Cummins®

Introduction

The Connection Rod Bearing (.25) Set, identified by part number 4089804, is a component manufactured by Cummins, a well-established name in the automotive industry. This set plays a significant role in the functionality of heavy-duty truck engines, ensuring smooth operation and efficiency.

Basic Concepts

A Connection Rod Bearing (.25) Set consists of precision-engineered bearings that are installed between the connecting rod and the crankshaft journal in an engine. These bearings facilitate the smooth rotation of the connecting rod as it converts the linear motion of the piston into rotational motion for the crankshaft. The set typically includes upper and lower bearings, each designed to handle specific loads and stresses within the engine ¹.

Role in Truck Operation

The Connection Rod Bearing (.25) Set is integral to the operation of a truck engine. It allows for the efficient transfer of power from the pistons to the crankshaft by minimizing friction and wear between moving parts. This set interacts closely with the crankshaft, pistons, and connecting rods, ensuring that the engine operates smoothly and reliably under various load conditions ².

Key Features

The Connection Rod Bearing (.25) Set by Cummins is characterized by several key features. These include a durable material composition designed to withstand high temperatures and pressures, precise design specifications to ensure optimal fit and performance, and unique attributes such as enhanced lubrication channels to improve oil flow and reduce friction ³.

Benefits

The advantages of using the Connection Rod Bearing (.25) Set include improved engine performance due to reduced friction, enhanced durability under high-stress conditions, and increased reliability, which contributes to the overall longevity of the engine. These benefits are particularly important in heavy-duty applications where engines are subjected to rigorous use ⁴.

Installation Process

Proper installation of the Connection Rod Bearing (.25) Set involves several steps. It begins with ensuring the crankshaft and connecting rod surfaces are clean and free of debris. The bearings are then carefully placed into their respective positions, ensuring they are properly aligned and seated. Torque specifications provided by the manufacturer should be followed to secure the components without overtightening, which could lead to damage ⁵.

Maintenance Tips

To ensure the optimal performance and longevity of the Connection Rod Bearing (.25) Set, regular maintenance is recommended. This includes periodic inspections for signs of wear or damage, ensuring proper lubrication is maintained, and addressing any issues promptly to prevent further complications. Adhering to the manufacturer’s recommended maintenance schedule is crucial for the continued efficient operation of the engine ⁶.

Troubleshooting Common Issues

Common problems associated with the Connection Rod Bearing (.25) Set may include excessive wear, noise during operation, or failure due to inadequate lubrication. Troubleshooting steps involve inspecting the bearings for signs of damage, checking lubrication levels and quality, and ensuring that all related components are in good condition. Solutions may range from simple lubrication adjustments to more complex repairs or replacements, depending on the severity of the issue ⁷.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the automotive industry. Their product range includes engines for on-highway and off-highway applications, as well as components and systems designed to enhance performance and efficiency ⁸.

Kit Components of Cummins 4089804 Connection Rod Bearing (.25) Set

Connecting Rod Bearing 3950662

The Connecting Rod Bearing 3950662 is a critical component of the Cummins 4089804 Connection Rod Bearing (.25) Set. This bearing is specifically designed to provide a smooth and durable interface between the connecting rod and the crankshaft journal. Its primary role is to reduce friction and wear, ensuring efficient power transfer and longevity of the engine components. The precise engineering of this bearing allows it to withstand high loads and temperatures, making it an essential part of the set ⁹.

Connecting Rod Bearing 3966245

The Connecting Rod Bearing 3966245 is another vital component included in the Cummins 4089804 set. Similar to the 3950662 bearing, this part is engineered to offer exceptional performance in high-stress environments. It plays a crucial role in maintaining the smooth operation of the connecting rod by minimizing friction and wear on the crankshaft journal. The 3966245 bearing is designed to complement the 3950662 bearing, providing a comprehensive solution for bearing replacement and maintenance in Cummins engines ¹⁰.

Conclusion

The Connection Rod Bearing (.25) Set by Cummins, part number 4089804, is a critical component in the efficient operation of heavy-duty truck engines. Its precise engineering, durable materials, and enhanced lubrication features contribute to reduced friction, improved performance, and increased engine longevity. Proper installation, regular maintenance, and prompt troubleshooting of common issues are essential for maximizing the benefits of this Cummins part.