4940110
Crankshaft Spacer
Cummins®

Crankshaft spacers are essential components in the operation of commercial truck engines, providing necessary spacing and alignment between the crankshaft and other engine components. The 4940110 crankshaft spacer by Cummins is specifically designed for use in truck engines, contributing to the engine’s performance and longevity. This part is integral to maintaining the precise mechanical relationships within the engine, ensuring optimal operation.

Basic Concepts of Crankshaft Spacers

Crankshaft spacers are components used in internal combustion engines to maintain the correct spacing between the crankshaft and other engine parts. They fit between the crankshaft and the engine block or other components, ensuring proper alignment and clearance. These spacers are typically made from durable materials such as steel or aluminum, chosen for their strength and resistance to wear. The manufacturing process often involves precision machining to ensure the spacers meet exact specifications, which is vital for their function within the engine ¹.

Purpose of the 4940110 Crankshaft Spacer

The 4940110 crankshaft spacer by Cummins is designed to ensure the correct spacing between the crankshaft and adjacent components, which is vital for the engine’s balance and performance. By maintaining this spacing, the spacer contributes to the engine’s overall efficiency and durability, helping to prevent issues such as misalignment or excessive wear that could lead to engine failure.

Key Features

The 4940110 crankshaft spacer features a design that is tailored to fit precisely within Cummins engines, ensuring optimal performance. It is made from high-quality materials that offer durability and resistance to the harsh conditions within an engine. Unique characteristics of this spacer include its precise machining and the use of materials that are specifically selected to withstand the stresses and temperatures encountered in truck engines.

Benefits

Using the 4940110 crankshaft spacer can lead to improved engine performance and enhanced durability. Its precise design and high-quality materials contribute to the engine’s efficiency and reliability. Over time, the use of this spacer may result in potential cost savings by reducing the need for frequent repairs or replacements of engine components due to misalignment or wear.

Troubleshooting and Maintenance

Common issues associated with crankshaft spacers include wear and misalignment. Troubleshooting these problems often involves inspecting the spacer for signs of damage or excessive wear and ensuring it is correctly installed. Regular maintenance practices, such as checking the condition of the spacer during routine engine inspections, can help ensure the longevity and efficiency of the 4940110 crankshaft spacer. Proper installation and periodic checks are recommended to maintain optimal engine performance ².

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established itself as a leader in the commercial truck industry, known for its commitment to quality and innovation in engine component manufacturing. The company’s extensive product range and focus on technological advancement underscore its position as a trusted provider of engine solutions for commercial vehicles.

Cummins Crankshaft Spacer 4940110 Compatibility

The Cummins Crankshaft Spacer 4940110 is designed to maintain proper alignment and spacing between the crankshaft and other engine parts. This part is essential for ensuring the smooth operation and longevity of the engine.

QSB5.9 CM850 Engine

The QSB5.9 CM850 engine is a robust and reliable power unit often used in various industrial and commercial applications. The Crankshaft Spacer 4940110 is specifically engineered to fit seamlessly within this engine model, providing the necessary support and stability. This part ensures that the crankshaft remains properly aligned with the engine’s internal components, reducing wear and preventing potential mechanical failures.

Grouping of Engines

While the QSB5.9 CM850 is a notable example, the Crankshaft Spacer 4940110 is also compatible with a range of other Cummins engines. These engines share similar design principles and engineering requirements, making the spacer a versatile component across multiple models. The spacer’s design ensures it fits snugly and securely, maintaining the integrity of the engine’s operation.

By using the Crankshaft Spacer 4940110, engine operators can be confident in the performance and reliability of their Cummins engines, knowing that this part plays a crucial role in maintaining the engine’s overall health and efficiency.

Role of Part 4940110 Crankshaft Spacer in Engine Systems

The 4940110 Crankshaft Spacer is an essential component in maintaining the precise alignment and spacing between various engine components. When integrated into engine systems, this spacer ensures optimal performance and longevity of the engine by facilitating the correct positioning of the crankshaft relative to other parts.

Integration with the Damper

In engine systems equipped with a damper, the 4940110 Crankshaft Spacer plays a significant role. The damper is designed to absorb vibrations and reduce the torsional vibrations that occur during engine operation. The spacer ensures that the damper is correctly aligned with the crankshaft, allowing it to function effectively. Proper alignment is vital for the damper to absorb vibrations efficiently, which in turn protects other engine components from excessive wear and stress.

Managing Vibration

Vibration management is another area where the 4940110 Crankshaft Spacer proves beneficial. By maintaining the correct distance between the crankshaft and other components, the spacer helps in minimizing unwanted vibrations. This is particularly important in high-performance engines where even minor misalignments can lead to increased vibration, affecting engine smoothness and overall performance. The spacer ensures that the crankshaft operates within the designed parameters, contributing to a stable and efficient engine operation.

Enhanced Component Interaction

The precise spacing provided by the 4940110 Crankshaft Spacer also enhances the interaction between the crankshaft and other engine components. For instance, in systems where the crankshaft interacts with the flywheel or harmonic balancer, the spacer ensures that these components are not only aligned correctly but also operate within their designed tolerances. This results in improved engine balance, reduced wear, and enhanced overall performance.

Conclusion

The 4940110 Crankshaft Spacer is a key component in ensuring the proper functioning of engine systems by maintaining alignment, managing vibrations, and enhancing component interaction. Its role is fundamental in achieving optimal engine performance and reliability.