4298642
Rocker Lever
Cummins®

The Cummins 4298642 Rocker Arm is a component designed for use in commercial truck engines. Its purpose is to facilitate the actuation of valves within the engine, ensuring that they open and close at precise intervals. This part plays a role in the overall operation and efficiency of the engine, contributing to the performance and reliability of commercial trucks.

Basic Concepts of Rocker Arms

A rocker arm is a lever within an engine that acts on the valves to open and close them in synchronization with the camshaft. It transfers motion from the camshaft to the valves, allowing for the intake and exhaust processes necessary for engine operation. The rocker arm interacts with other components such as the camshaft, pushrods, and valves to ensure proper valve timing and operation ¹.

Purpose of the 4298642 Rocker Arm

The 4298642 Rocker Arm is specifically designed to enhance the valve actuation process in truck engines. It ensures that valves open and close with the correct force and timing, which is vital for maintaining engine performance. By providing a reliable means of valve actuation, this rocker arm contributes to the overall efficiency and power output of the engine ².

Key Features

The 4298642 Rocker Arm is engineered with specific design and material characteristics to enhance its durability, efficiency, and reliability in heavy-duty applications. It is constructed from high-quality materials that can withstand the rigors of commercial truck operation, ensuring long-lasting performance. The design of the rocker arm also includes features that reduce friction and wear, contributing to its efficiency and reliability ³.

Benefits

The advantages provided by the 4298642 Rocker Arm include improved engine performance, increased fuel efficiency, and reduced maintenance requirements. By ensuring precise valve actuation, this component helps to optimize the engine’s combustion process, leading to better overall performance and fuel economy. Additionally, its durable construction reduces the need for frequent replacements or repairs, lowering maintenance costs ⁴.

Installation and Compatibility

Proper installation of the 4298642 Rocker Arm is important for ensuring its effective operation within the engine. It is compatible with various Cummins engine models, designed to fit seamlessly into the engine’s valve train system. Following manufacturer guidelines for installation ensures that the rocker arm functions correctly and contributes to the engine’s performance.

Compatibility of Rocker Arm Part 4298642 with Cummins Engines

The Rocker Arm part 4298642, manufactured by Cummins, is designed to fit a variety of their engine models. This part is integral to the engine’s valve train system, ensuring proper valve operation and overall engine performance. Below is a detailed look at the compatibility of this rocker arm with various Cummins engines:

ISX Series Engines

• ISX CM570
• ISX CM870
• ISX CM871
• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101

The ISX series engines, including the ISX CM570, ISX CM870, ISX CM871, ISX15 CM2250, ISX15 CM2250 SN, and ISX15 CM2350 X101, are compatible with the Rocker Arm part 4298642. This part ensures that the valve train operates smoothly, maintaining the engine’s efficiency and longevity.

QSX Series Engines

• QSX15 CM2250
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

The QSX15 series engines, such as the QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105, also utilize the Rocker Arm part 4298642. This compatibility ensures that the rocker arm’s design and functionality align with the specific requirements of these engines, contributing to their reliable performance.

X15 Series Engines

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

The X15 series engines, including the X15 CM2350 X116B, X15 CM2350 X123B, and X15 CM2450 X134B, are also compatible with the Rocker Arm part 4298642. This part is engineered to meet the demands of these engines, ensuring precise valve operation and contributing to the overall efficiency and durability of the engine.

Troubleshooting and Maintenance

Identifying common issues related to the 4298642 Rocker Arm, such as wear and tear or malfunctions, is important for maintaining engine performance. Regular inspection and maintenance practices, such as checking for proper clearances and lubrication, can help prevent problems and ensure optimal performance. Addressing issues promptly can prevent more significant engine damage and maintain the efficiency of the valve train system.

Performance Enhancements

The 4298642 Rocker Arm contributes to overall engine efficiency and power output by ensuring precise and reliable valve actuation. Its impact on truck performance is evident in various operating conditions, where it helps maintain engine responsiveness and efficiency. By enhancing the valve train’s operation, this component plays a role in the engine’s ability to deliver power and efficiency under different loads and speeds.

Cummins Corporation

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of engine and power generation products. With a history of innovation and quality, Cummins has established a reputation for producing reliable and high-performance engines. The company’s commitment to excellence is reflected in its product range, which includes components like the 4298642 Rocker Arm, designed to enhance the performance and reliability of commercial trucks.

Conclusion

The Cummins 4298642 Rocker Arm is a critical component in the operation of commercial truck engines, ensuring precise valve actuation and contributing to engine performance and reliability. Its compatibility with various Cummins engine models, along with its durable construction and efficient design, makes it a valuable part for maintaining and enhancing engine efficiency and power output.