113020
Flexplate Disc
Cummins®

The Cummins 113020 Flexplate Disc is a component designed for use in heavy-duty trucks. It serves as a link between the engine and the transmission, facilitating the transfer of power. This part is integral to the smooth operation of the vehicle, ensuring efficient power transmission from the engine to the drivetrain.

Basic Concepts of Flexplate Discs

A flexplate disc is a component found in automatic transmission systems, analogous to the flywheel in manual transmissions. It is typically made from a stamped steel construction, providing flexibility and durability. The flexplate disc functions by connecting the engine to the torque converter, allowing for the transmission of rotational force. Unlike a traditional flywheel, which is solid and used in manual transmissions to smooth out the power delivery, the flexplate disc is designed with multiple holes and slots to accommodate the torque converter’s operation ¹.

Purpose of the Cummins 113020 Flexplate Disc

The Cummins 113020 Flexplate Disc plays a role in the operation of a truck by serving as the interface between the engine and the automatic transmission. It is designed to work in conjunction with the torque converter, which it directly attaches to. This connection enables the efficient transfer of power generated by the engine to the transmission, allowing for smooth gear changes and vehicle movement. The flexplate disc’s design also accommodates the demands of heavy-duty applications, ensuring reliable performance under various operating conditions.

Key Features

The Cummins 113020 Flexplate Disc is characterized by several key features that enhance its performance and durability. It is constructed from high-strength materials, ensuring it can withstand the rigors of heavy-duty use. The design includes precise bolt circle dimensions and pilot hole sizing to ensure a secure fit with the engine and torque converter. Additionally, the flexplate disc may feature damping elements to reduce vibration and noise, contributing to a smoother operation.

Benefits of Using the Cummins 113020 Flexplate Disc

Utilizing the Cummins 113020 Flexplate Disc offers several advantages. Its robust construction and design contribute to improved durability, making it suitable for the demanding conditions of heavy-duty trucking. The efficient power transfer capabilities of the flexplate disc can lead to enhanced vehicle performance. Moreover, its reliability and longevity can result in potential cost savings over time by reducing the need for frequent replacements or repairs.

Installation Considerations

Proper installation of the Cummins 113020 Flexplate Disc is vital to ensure optimal performance and longevity. It is recommended to follow the manufacturer’s guidelines for installation, which may include specific torque specifications for fastening the flexplate to the engine and torque converter. Using the correct tools and procedures during installation can help prevent damage to the component and ensure a secure fit.

Troubleshooting Common Issues

Common issues associated with flexplate discs can include vibrations, noise, or failure to engage properly with the torque converter. These problems may arise from improper installation, wear and tear, or manufacturing defects. Troubleshooting steps may involve inspecting the flexplate disc for damage, ensuring it is correctly aligned and fastened, and checking for any signs of wear on mating surfaces.

Maintenance Tips

Routine maintenance of the Cummins 113020 Flexplate Disc is important for ensuring its longevity and optimal performance. This may include regular inspections for signs of wear or damage, ensuring it remains securely fastened, and addressing any issues promptly. Following the manufacturer’s recommended maintenance schedule can help prevent unexpected failures and extend the component’s service life.

Cummins: A Brief 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 strong reputation in the commercial truck industry for producing reliable and high-performance engines and components. The company’s product range includes a variety of engines, powertrain components, and aftermarket parts designed to meet the needs of heavy-duty applications.

Flexplate Disc Compatibility with Cummins Engines

The Flexplate Disc part number 113020, manufactured by Cummins, is a crucial component in the engine assembly, serving as an interface between the engine and the transmission. This part is designed to accommodate various engine models, ensuring a smooth and efficient power transfer. Below is a detailed overview of its compatibility with specific Cummins engines.

K19 and QSK19 CM500 Engines

The Flexplate Disc part number 113020 is compatible with both the K19 and QSK19 CM500 engines. These engines are known for their robust design and high performance, often used in heavy-duty applications such as construction equipment and industrial machinery. The flexplate disc ensures that the torque generated by these engines is effectively transferred to the transmission, maintaining operational efficiency and longevity.

V28 Engine

Similarly, the V28 engine also integrates seamlessly with the Flexplate Disc part number 113020. This engine is another high-performance model from Cummins, typically employed in demanding environments where reliability and power are paramount. The flexplate disc’s design allows it to handle the significant torque output of the V28 engine, ensuring a stable connection between the engine and transmission.

Grouping of Engines

While the Flexplate Disc part number 113020 is compatible with the K19, QSK19 CM500, and V28 engines individually, it is important to note that these engines share common design principles and performance characteristics. This commonality facilitates the use of a single flexplate disc across these models, simplifying maintenance and repair processes. The flexplate disc’s ability to interface effectively with these engines underscores Cummins’ commitment to providing high-quality, reliable components for their engine lineup.

Role of Part 113020 Flexplate Disc in Engine Systems

The Part 113020 Flexplate Disc is integral to the operation of both the flywheel and flexplate systems within an engine. In an automatic transmission setup, the flexplate serves as a connection between the engine and the torque converter. It is designed to flex slightly to accommodate the varying loads and stresses that occur during operation, which helps in smoothing out the power delivery from the engine to the transmission.

In contrast, within a manual transmission system, the flywheel performs a similar role but with distinct operational characteristics. The flywheel is a heavy, rotating disc attached to the crankshaft. Its primary function is to store rotational energy and provide inertia, which helps in stabilizing the engine’s RPM during the combustion cycle. The flywheel also engages with the starter motor’s pinion gear during engine start-up, ensuring a reliable start every time ².

When considering the flywheel and flexplate together, it’s important to understand their complementary roles. The flywheel’s mass and inertia are essential for maintaining consistent engine speed, especially in manual transmissions where the clutch system disengages the engine from the transmission during gear changes. The flexplate, on the other hand, offers flexibility and absorbs torsional vibrations, which is particularly beneficial in automatic transmissions where the torque converter can introduce additional dynamic loads.

In summary, the Part 113020 Flexplate Disc plays a significant role in ensuring smooth and efficient power transfer in engine systems, whether it is paired with a flywheel in a manual transmission or functioning independently in an automatic transmission. Its design and material properties are tailored to handle the specific demands of each system, contributing to overall engine performance and durability ³.

Conclusion

The Cummins 113020 Flexplate Disc is a vital component in heavy-duty truck engines, ensuring efficient power transfer and smooth operation. Its robust design, compatibility with various Cummins engines, and the role it plays in both automatic and manual transmission systems highlight its importance in maintaining vehicle performance and reliability.