3892170
Push Rod
Cummins®

The Cummins 3892170 Push Rod is a component designed for use in heavy-duty truck engines. It serves a specific function within the engine’s valve train, contributing to the overall performance and reliability of the engine. Understanding its purpose and significance is key to maintaining and optimizing the operation of heavy-duty trucks.

Basic Concepts of Push Rods

Push rods are mechanical components used in overhead valve (OHV) engines to transmit motion from the camshaft to the valves. They are typically long, slender metal rods that connect the camshaft’s lobes to the rocker arms, which in turn actuate the valves. This mechanism allows for precise control over the opening and closing of the engine’s valves, which is critical for the engine’s combustion process ¹.

Purpose of the 3892170 Push Rod

The 3892170 Push Rod is specifically engineered to facilitate the transfer of motion from the camshaft to the rocker arms in Cummins engines. This push rod interacts with the camshaft’s lobes, which push against it to create motion. This motion is then transferred to the rocker arms, which open and close the engine’s valves at precise intervals. The efficient operation of this component is vital for the engine’s performance, ensuring that the valves open and close at the correct times for optimal combustion ².

Key Features

The 3892170 Push Rod is constructed from high-quality materials to ensure durability and performance. Its design includes specific dimensions and tolerances to fit precisely within the engine’s valve train. The material composition and design elements of this push rod are tailored to withstand the high stresses and temperatures encountered in heavy-duty truck engines, contributing to its longevity and reliability ³.

Benefits

Utilizing the 3892170 Push Rod in an engine setup can lead to several advantages. These include improved engine efficiency due to precise valve actuation, enhanced reliability under demanding conditions, and increased longevity of the engine’s valve train components. The push rod’s design and material properties contribute to these benefits, making it a valuable component for heavy-duty applications.

Installation and Compatibility

Proper installation of the 3892170 Push Rod is crucial for ensuring the engine operates efficiently and reliably. Installation guidelines should be followed to avoid damage to the component or the engine. Compatibility with various Cummins engine models is an important consideration, ensuring that the push rod fits and functions correctly within the specific engine it is intended for.

Maintenance and Troubleshooting

Routine maintenance practices can help ensure the longevity and optimal performance of the 3892170 Push Rod. Regular inspections for wear and damage, along with proper lubrication, are recommended. Common issues that may arise include wear on the push rod or misalignment, which can affect engine performance. Troubleshooting tips may involve checking for proper alignment, ensuring there is no excessive play, and addressing any signs of wear promptly.

Performance Enhancements

The 3892170 Push Rod contributes to overall engine performance by ensuring precise and reliable valve actuation. This can lead to potential improvements in power output and fuel efficiency, as the engine’s combustion process is more consistent and efficient. The push rod’s role in the valve train mechanism is a key factor in achieving these performance enhancements.

Cummins Corporation

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and power generation products. With a strong reputation in the automotive industry, particularly in the heavy-duty truck sector, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and technological advancements have made it a preferred choice for heavy-duty applications.

Cummins Push Rod 3892170 Compatibility with Engine Models

The Cummins Push Rod part number 3892170 is a critical component in various engine models, ensuring the proper operation of the valve train system. This push rod is designed to transfer motion from the camshaft to the valve, facilitating the opening and closing of the engine’s valves. Below is a detailed description of how this push rod fits with specific Cummins engine models.

L10 Mechanical Engines

The Cummins L10 Mechanical engine is a robust and reliable engine model widely used in various applications, including military and industrial sectors. The push rod 3892170 is integral to the L10’s valve train mechanism, ensuring that the valves operate smoothly and efficiently. This engine’s design allows for the push rod to be precisely aligned with the camshaft and valve, maintaining the necessary clearance and contact required for optimal performance.

Grouping of Compatible Engines

While the Cummins Push Rod 3892170 is specifically designed for the L10 Mechanical engine, it is also compatible with other similar engine models within the Cummins lineup. These engines share similar design principles and valve train configurations, making the push rod interchangeable across these models. The compatibility ensures that technicians and mechanics can rely on this part for various applications without the need for custom modifications.

The push rod’s design and material are engineered to withstand the high stresses and temperatures typical in engine operations, ensuring durability and longevity. Its precise dimensions and fit are critical for maintaining the engine’s performance and preventing potential failures due to misalignment or wear.

Role of Part 3892170 Push Rod in Engine Systems

The 3892170 Push Rod is an essential component in the operation of various engine systems, particularly in the interaction between the camshaft and the valve train. This push rod transmits motion from the camshaft to the rocker lever, which in turn actuates the valve.

In the valve train mechanism, the camshaft, driven by the engine’s crankshaft, rotates and interacts with the push rod. As the camshaft lobes rise, they push against the push rod, which then extends upward. This extension is transferred to the rocker lever, causing it to pivot. The pivoting action of the rocker lever then opens the valve, allowing air and fuel into the combustion chamber or expelling exhaust gases.

The precision and reliability of the 3892170 Push Rod are vital for maintaining the synchronization between the camshaft’s rotation and the valve’s opening and closing cycles. This ensures efficient combustion and optimal engine performance. The push rod must withstand the continuous mechanical stress and high temperatures within the engine compartment, making its material and design critical for durability and performance.

Conclusion

In summary, the 3892170 Push Rod plays a significant role in the seamless operation of the valve train, contributing to the overall efficiency and reliability of the engine system. Its design, material, and precise fit are critical for maintaining optimal engine performance and ensuring the longevity of the valve train components.