4900404
Piston Pin
Cummins®

The 4900404 Piston Pin, manufactured by Cummins, is a critical component in the operation of commercial trucks. Cummins, a prominent name in the commercial truck industry, produces a range of high-quality parts designed to enhance engine performance and reliability. This part plays a significant role in the efficient functioning of truck engines.

Basic Concepts of Piston Pins

A piston pin, also known as a wrist pin, is a vital component in an internal combustion engine. Its primary function is to connect the piston to the connecting rod, allowing the piston to move up and down while the connecting rod converts this linear motion into rotational motion at the crankshaft. Piston pins are typically made from high-strength materials such as forged steel or chrome-silicon alloys to withstand the high stresses and temperatures encountered in engine operation ¹.

Purpose of the 4900404 Piston Pin

The 4900404 Piston Pin serves a specific role in the operation of a truck engine. It facilitates the connection between the piston and the connecting rod, ensuring smooth and efficient transfer of motion. This pin allows the piston to pivot slightly as it moves, accommodating the offset between the piston and the connecting rod. This design helps in reducing friction and wear, contributing to the overall efficiency and longevity of the engine ².

Key Features

The 4900404 Piston Pin is designed with several features that enhance its performance and durability. These include a precision-machined surface to ensure a smooth fit within the piston and connecting rod, and a heat-treated construction to increase strength and resistance to wear. Additionally, the pin may feature specific coatings or treatments to further reduce friction and protect against corrosion ³.

Benefits

The 4900404 Piston Pin offers several advantages. Its high-quality construction contributes to improved engine efficiency by reducing friction and wear. This results in smoother engine operation and potentially lower fuel consumption. Furthermore, the durability of the pin enhances the reliability of the engine, reducing the likelihood of unexpected failures and extending the maintenance intervals ⁴.

Installation and Compatibility

Proper installation of the 4900404 Piston Pin is vital to ensure optimal performance and longevity. It should be installed with the correct clearances and torque specifications to avoid issues such as excessive wear or failure. Compatibility with various engine models is an important consideration, and it is advisable to consult the manufacturer’s guidelines to ensure the pin is suitable for the specific engine application ⁵.

Maintenance and Troubleshooting

Routine maintenance of the 4900404 Piston Pin involves regular inspection for signs of wear, corrosion, or damage. This can be achieved through visual inspection and measurement of clearances. Common issues may include increased play in the pin, which can indicate wear, or signs of corrosion which may suggest inadequate lubrication or environmental factors. Troubleshooting steps may involve cleaning, re-lubrication, or replacement of the pin if necessary ⁶.

Performance Under Stress

The 4900404 Piston Pin is designed to perform under the demanding conditions typical of heavy-duty truck applications. It is capable of withstanding high loads and temperatures, maintaining its structural integrity and functional performance. This resilience is crucial for the reliable operation of commercial trucks, which often operate under extreme conditions ⁷.

Cummins: A Brief 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 strong reputation for quality, innovation, and reliability in the commercial truck industry. The company’s extensive product range and commitment to customer satisfaction have made it a preferred choice for commercial vehicle operators worldwide.

Cummins Piston Pin 4900404 Compatibility

The Cummins Piston Pin 4900404 is designed to fit seamlessly into a variety of engine models, ensuring optimal performance and reliability. This part is engineered to meet the stringent requirements of the A1700 and A2300 engines, providing a critical connection between the piston and the connecting rod.

A1700 Engine Series

In the A1700 engine series, the Piston Pin 4900404 plays a pivotal role in maintaining the smooth operation of the engine. This part is specifically crafted to fit the unique design and specifications of the A1700 engines, ensuring a precise fit and reliable performance. The compatibility of this piston pin with the A1700 engines is a testament to Cummins’ commitment to quality and precision engineering.

A2300 Engine Series

Similarly, the A2300 engine series benefits from the use of the Cummins Piston Pin 4900404. This part is engineered to fit the A2300 engines, providing a secure and reliable connection between the piston and the connecting rod. The precision engineering of this piston pin ensures that it meets the specific requirements of the A2300 engines, contributing to the overall performance and longevity of the engine.

Grouping for Efficiency

The compatibility of the Cummins Piston Pin 4900404 with both the A1700 and A2300 engines allows for efficient inventory management and streamlined maintenance processes. By using a single part for multiple engine models, maintenance personnel can reduce the complexity of their operations and ensure that they have the necessary components on hand to perform repairs and maintenance tasks efficiently.

Precision Engineering

The precision engineering of the Cummins Piston Pin 4900404 is a key factor in its compatibility with the A1700 and A2300 engines. This part is manufactured to exacting specifications, ensuring that it fits perfectly within the engine’s design and performs reliably under a variety of operating conditions. The attention to detail in the design and manufacturing process of this piston pin is a reflection of Cummins’ commitment to quality and excellence.

Role of Part 4900404 Piston Pin in Engine Systems

The part 4900404 Piston Pin is an integral component in the operation of an engine system. It serves as the connection between the piston and the connecting rod, allowing for the smooth transfer of force from the piston’s reciprocating motion to the rotational motion of the crankshaft.

In the context of the engine piston, the Piston Pin enables the piston to move up and down within the cylinder while maintaining alignment with the connecting rod. This alignment is essential for the efficient conversion of the combustion energy into mechanical work. The Piston Pin’s design allows for a small degree of movement, which accommodates the slight offset between the piston and the connecting rod as the engine operates. This flexibility helps to reduce wear and tear on the components, enhancing the longevity and performance of the engine.

Furthermore, the Piston Pin plays a significant role in managing the thermal expansion of the piston. As the engine heats up during operation, the piston expands. The Piston Pin’s design allows for this expansion, preventing the piston from seizing within the cylinder and ensuring smooth operation.

In summary, the part 4900404 Piston Pin is a key element in the engine’s mechanical system, facilitating the efficient transfer of force and accommodating the dynamic conditions within the engine. Its proper function is essential for the overall performance and durability of the engine.

Conclusion

The 4900404 Piston Pin is a critical component in the operation of commercial truck engines, designed to enhance performance and reliability. Its role in connecting the piston to the connecting rod, managing thermal expansion, and reducing friction and wear is essential for the efficient and durable operation of the engine. Proper installation, maintenance, and understanding of its compatibility with various engine models are crucial for maximizing the benefits of this Cummins part.