4947472
Flywheel Housing
Cummins®

The Cummins 4947472 Flywheel Housing is a component designed for heavy-duty truck engines. It serves a pivotal role in the engine’s operation by providing a secure mounting point for the flywheel and facilitating the connection between the engine and transmission. This housing is integral to the efficient transfer of power and the overall performance of the truck.

Basic Concepts of Flywheel Housing

A flywheel housing is a structural component that encases the flywheel, which is a heavy rotating disc that stores rotational energy. This housing plays a role in the engine system by supporting the flywheel and clutch assembly. It ensures that the flywheel is properly aligned and securely attached to the engine block. The flywheel housing also interfaces with the transmission, allowing for the smooth transfer of power from the engine to the drivetrain ¹.

Purpose of the 4947472 Flywheel Housing

The 4947472 Flywheel Housing is designed to enhance the operation of heavy-duty trucks by providing a robust and reliable mounting solution for the flywheel. It contributes to engine performance by ensuring that the flywheel is correctly positioned and supported, which is vital for the efficient operation of the clutch and transmission. Additionally, the housing is crafted to withstand the high stresses and vibrations inherent in heavy-duty applications, thereby promoting engine durability ².

Key Features

The 4947472 Flywheel Housing boasts several key features that enhance its functionality. It is constructed from high-strength materials to endure the demanding conditions of heavy-duty use. The design incorporates precise machining to ensure optimal fit and alignment with the engine and transmission components. Additionally, the housing may feature integrated mounting points for ancillary components, streamlining the installation process.

Benefits

The implementation of the 4947472 Flywheel Housing offers several advantages. It contributes to improved engine efficiency by ensuring a stable and secure connection between the engine and transmission. The durable construction of the housing enhances the longevity of the engine components, potentially leading to cost savings for fleet operators through reduced maintenance and replacement costs ³.

Installation Process

Installing the 4947472 Flywheel Housing involves several steps to ensure proper fit and function. Mechanics should begin by preparing the engine block, ensuring it is clean and free of debris. The housing should be aligned with the mounting points on the engine block and secured using the appropriate fasteners. It is important to verify that the housing is level and properly aligned with the transmission to prevent issues during operation. Torque specifications should be followed to ensure fasteners are tightened to the manufacturer’s recommendations.

Troubleshooting and Maintenance

Common issues with the 4947472 Flywheel Housing may include misalignment, wear, or damage from excessive vibration. Regular inspection during maintenance intervals can help identify potential problems early. Maintenance tips include checking for proper alignment, inspecting for signs of wear or damage, and ensuring that all fasteners are secure. Addressing issues promptly can help maintain optimal performance and prevent more significant problems down the line.

Compatibility and Applications

The 4947472 Flywheel Housing is designed for specific types of trucks and engines. It is important to consult the manufacturer’s guidelines to ensure compatibility with the intended application. This housing is typically used in heavy-duty truck engines where reliability and durability are paramount.

Cummins Overview

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 a reputation for quality and innovation in the automotive and heavy-duty truck industry. The company’s commitment to excellence is reflected in its wide range of products, which are designed to meet the demanding requirements of various applications.

Cummins Flywheel Housing Part 4947472 Compatibility

The Cummins flywheel housing part number 4947472 is designed to fit a range of Cummins engines, ensuring a secure and reliable connection between the engine and the transmission. This part is crucial for maintaining the integrity of the engine’s rotational system and is compatible with several models within the Cummins engine lineup.

Compatible Engines

• 6C8.3
• ISL9 CM2150 SN
• ISL9.5 CM2880 L138
• L8.9
• L8.9G CMOH2.0 L125B
• L9 CM2670 L128B

The flywheel housing part 4947472 is engineered to interface seamlessly with these engines, providing a robust mounting point for the flywheel and ensuring proper alignment with the transmission. This compatibility is essential for maintaining engine performance and longevity.

Grouping of Compatible Engines

• 6C8.3 and L8.9 Series

  • These engines share similar design principles and mounting configurations, making the flywheel housing part 4947472 suitable for both.

• ISL9 and ISL9.5 Series

  • The ISL9 CM2150 SN and ISL9.5 CM2880 L138 engines are part of the same family, with slight variations in displacement and power output. The flywheel housing part 4947472 is designed to fit both models, ensuring a consistent fit across the series.

• L8.9G CMOH2.0 L125B

  • This engine, while part of the L8.9 series, has specific modifications that are accommodated by the part 4947472.

• L9 CM2670 L128B

  • This engine, with its unique specifications, is also compatible with the flywheel housing part 4947472, ensuring a precise fit and function.

Role of Part 4947472 Flywheel Housing in Engine Systems

The Part 4947472 Flywheel Housing is an integral component in the operation of engine systems, particularly in the context of internal combustion engines. This housing encases the flywheel, which is a heavy wheel attached to the crankshaft of an engine. The flywheel serves multiple functions, including storing rotational energy, smoothing out the delivery of power from the engine to the transmission, and providing inertia to keep the engine running smoothly.

When the flywheel rotates, it engages with the starter motor during engine start-up, allowing the engine to turn over. The flywheel housing not only protects the flywheel but also ensures that the flywheel operates within a controlled environment, minimizing the risk of damage from external factors.

In addition, the flywheel housing interfaces with the clutch system in manual transmissions. The pressure plate, which is part of the clutch assembly, is mounted to the flywheel housing. When the clutch pedal is depressed, the pressure plate disengages from the flywheel, allowing the driver to change gears without interrupting the engine’s operation.

Furthermore, the flywheel housing plays a role in the operation of the dual-mass flywheel (DMF) system, where it helps in reducing engine vibrations and providing a smoother driving experience. The housing accommodates the additional components of the DMF, such as the secondary mass and the pendulum system, which work together to absorb and dampen vibrations.

In summary, the Part 4947472 Flywheel Housing is a key component that ensures the efficient and smooth operation of the flywheel, clutch system, and overall engine performance.

Conclusion

The Cummins 4947472 Flywheel Housing is a critical component in the operation of heavy-duty truck engines. Its robust design and precise engineering ensure a secure and reliable connection between the engine and transmission, contributing to the efficient transfer of power and overall engine performance. By understanding the key features, benefits, and installation process of this part, fleet operators and mechanics can maintain optimal engine performance and longevity.