4947898
Engine Connecting Rod
Cummins®

The Cummins 4947898 Engine Connecting Rod is a vital component in the operation of heavy-duty trucks. This part facilitates the conversion of linear motion from the piston into rotational motion for the crankshaft, playing a significant role in the engine’s overall performance and efficiency.

Basic Concepts of Engine Connecting Rods

An engine connecting rod, often referred to simply as a “con rod,” is a crucial link between the piston and the crankshaft within an internal combustion engine. Its primary function is to convert the linear motion of the piston into rotational motion of the crankshaft. This conversion is fundamental to the engine’s operation, as it allows the energy produced by the combustion of fuel to be harnessed and used to propel the vehicle ¹.

Purpose of the 4947898 Engine Connecting Rod

The Cummins 4947898 Engine Connecting Rod is designed to enhance the operation of truck engines by efficiently transferring motion from the piston to the crankshaft. This part contributes to the engine’s performance and efficiency by ensuring smooth and reliable operation under various driving conditions. Its design and material composition are tailored to withstand the high stresses and temperatures encountered in heavy-duty applications ².

Key Features

The Cummins 4947898 Engine Connecting Rod boasts several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring resilience under high stress and temperature conditions. The design incorporates precise engineering to optimize weight and balance, contributing to the engine’s overall efficiency. Additionally, unique characteristics such as advanced coatings or heat treatments may be applied to further enhance its durability and performance ³.

Benefits

Utilizing the Cummins 4947898 Engine Connecting Rod offers several benefits. These include improved engine efficiency due to its optimized design, enhanced durability that ensures long-term reliability, and reliable performance under heavy-duty conditions. The rod’s ability to withstand high stress and temperatures contributes to the engine’s longevity and consistent performance.

Troubleshooting and Maintenance

Common issues with engine connecting rods may include wear, fatigue, or failure due to excessive stress or inadequate lubrication. Troubleshooting these problems involves inspecting the rod for signs of damage, ensuring proper lubrication, and addressing any misalignments or imbalances. Regular maintenance practices, such as checking for wear and ensuring proper torque specifications during installation, are crucial for the longevity and optimal performance of the 4947898 Engine Connecting Rod.

Installation Considerations

When installing the Cummins 4947898 Engine Connecting Rod, several factors must be considered to ensure proper function and compatibility with other engine components. These include adhering to the manufacturer’s torque specifications, performing alignment checks to ensure the rod is correctly positioned, and verifying compatibility with the engine’s crankshaft and pistons. Proper installation is key to maintaining the engine’s performance and reliability.

Performance Under Stress

The Cummins 4947898 Engine Connecting Rod is engineered to perform under various stress conditions, including high torque, extreme temperatures, and prolonged use. Its design and material composition allow it to withstand these challenges, providing insights into its resilience and reliability. The rod’s performance under stress is a testament to its quality and suitability for heavy-duty applications.

Comparative Analysis

When compared to similar products from other manufacturers, the Cummins 4947898 Engine Connecting Rod may exhibit differences in design, performance, and durability. These differences can be attributed to variations in material composition, engineering precision, and manufacturing processes. A detailed comparison highlights the unique advantages and characteristics of the Cummins rod, reinforcing its position as a high-quality component for heavy-duty engines.

Cummins Overview

Cummins Inc. is a renowned manufacturer with a rich history in producing high-quality engine components for heavy-duty applications. The company’s reputation in the industry is built on its commitment to innovation, quality, and reliability. Cummins’ dedication to excellence is evident in its wide range of engine parts, including the 4947898 Engine Connecting Rod, which is designed to meet the demanding requirements of heavy-duty trucks.

Compatibility of Engine Connecting Rod Part 4947898 with Cummins Engines

The Engine Connecting Rod part number 4947898, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is integral to the engine’s operation, connecting the piston to the crankshaft and facilitating the conversion of linear piston motion into rotational crankshaft motion.

6C8.3 Series

• 6C8.3: This engine benefits from the robust design of the 4947898 connecting rod, ensuring smooth operation and durability.

C GAS PLUS CM556 Series

• C GAS PLUS CM556: The 4947898 part is compatible with this engine, providing reliable performance and longevity.

C8.3 G Series

• C8.3 G: This engine model is designed to work seamlessly with the 4947898 connecting rod, enhancing its operational efficiency.

G8.3 Series

• G8.3: The 4947898 part fits this engine, ensuring optimal performance and durability.
• G8.3 CM558: This variant also utilizes the 4947898 connecting rod, maintaining the engine’s integrity.
• GTA8.3 CM558: This engine is another beneficiary of the 4947898 connecting rod, providing enhanced performance and reliability.

ISC Series

• ISC CM2150: The 4947898 part is compatible with this engine model, ensuring smooth operation.
• ISC CM554: This engine model also fits the 4947898 connecting rod, offering reliable performance.
• ISC CM850: The 4947898 part is designed to fit this engine, ensuring optimal performance.
• ISC8.3 CM2250: This engine model utilizes the 4947898 connecting rod, providing durability and efficiency.

ISL9 Series

• ISL9 CM2150 SN: The 4947898 part is compatible with this engine, ensuring smooth and reliable operation.

QSC Series

• QSC8.3 CM850 (CM2850): This engine model fits the 4947898 connecting rod, ensuring optimal performance.
• QSC9 CM2250 / QSL9 CM2250: The 4947898 part is compatible with these engine models, providing durability and efficiency.
• QSL9 CM850 (CM2850): This engine model also utilizes the 4947898 connecting rod, ensuring reliable performance.

This part is engineered to meet the specific requirements of these engines, ensuring compatibility and performance across the board.

Role of Part 4947898 Engine Connecting Rod in Engine Systems

The Part 4947898 Engine Connecting Rod is a fundamental component that interfaces several key elements within an engine system. Its primary function is to connect the Engine Piston to the Crankshaft, enabling the conversion of linear motion from the piston into rotational motion that drives the crankshaft.

Interaction with the Cylinder Block and Cylinder Head

Within the Engine Assembly, the connecting rod operates in conjunction with the Cylinder Block and Cylinder Head. As the piston moves up and down within the cylinder bores of the cylinder block, the connecting rod transmits this motion to the crankshaft. The cylinder head, which houses the valves and combustion chamber, works in tandem with the piston and connecting rod to ensure efficient combustion and power delivery.

Coordination with the Camshaft and Fuel Injectors

The Camshaft, which controls the opening and closing of the valves in the cylinder head, must be precisely timed with the movement of the pistons. The connecting rod plays a part in this synchronization by ensuring the piston’s motion is smoothly transferred to the crankshaft, which in turn drives the camshaft via timing gears, chains, or belts.

Fuel Injectors, whether they are part of a direct injection system or a port injection system, rely on the precise movement of the pistons to deliver fuel at the optimal time. The connecting rod’s role in maintaining the piston’s consistent motion is essential for the injectors to function correctly, ensuring the right air-fuel mixture is combusted at the right moment.

Integration in Short Block and Long Block Assemblies

In a Short Block assembly, which includes the cylinder block, crankshaft, pistons, and connecting rods, the Part 4947898 Engine Connecting Rod is a core component. It ensures that the basic functionality of converting piston motion into crankshaft rotation is maintained.

In contrast, a Long Block assembly includes additional components such as the cylinder head, camshaft, and valve train. Here, the connecting rod’s role extends to supporting the increased complexity of the engine, ensuring that the additional components function harmoniously with the basic piston and crankshaft motion.

Role in Repair Kits and Performance Parts

When it comes to Repair Kits or Performance Parts, the connecting rod often needs to be replaced or upgraded. In repair kits, the connecting rod ensures that the engine can be restored to its original functionality after wear and tear. In performance parts, upgraded connecting rods can handle higher stresses and greater power outputs, allowing for enhanced engine performance.

On Board Spares and Injector Plumbing

For systems that include On Board Spares, the reliability of the connecting rod is paramount. Any failure in this component could lead to significant engine damage. Similarly, in systems with complex Injector Plumbing, the consistent and reliable operation of the connecting rod ensures that the fuel delivery system operates without interruption.

Conclusion

In summary, the Part 4947898 Engine Connecting Rod is integral to the operation of various engine components, ensuring that the motion of the pistons is effectively transferred to the crankshaft, supporting both basic engine function and enhanced performance.