3357686
Flywheel
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$1,199.95 $1,427.94

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3357686 Flywheel Assembly is a vital component in the operation of commercial trucks. It is designed to store rotational energy and smooth out the power delivery from the engine to the transmission. This assembly plays a significant role in ensuring the efficient and reliable performance of the truck’s engine system 1.

Basic Concepts of Flywheel Assemblies

A flywheel assembly is a mechanical device that stores rotational energy and helps maintain a consistent rotational speed within an engine system. It consists of a heavy wheel attached to the crankshaft, which stores kinetic energy during the power strokes of the engine. This stored energy is then released during the non-power strokes, helping to maintain a smooth and steady engine operation. The flywheel also plays a role in the engine’s starting process by engaging with the starter motor 2.

Purpose of the 3357686 Flywheel Assembly

The 3357686 Flywheel Assembly is integral to the operation of a truck’s engine. It interacts with several key components, including the crankshaft, clutch, and transmission. By storing and releasing rotational energy, the flywheel helps to stabilize the engine’s RPM, ensuring a smoother power delivery. This stability is particularly important in heavy-duty applications where consistent power output is crucial for performance and efficiency 3.

Key Features

This Cummins part is characterized by its robust design and high-quality materials. It is constructed from durable alloys that can withstand the high stresses and temperatures encountered in commercial truck engines. The assembly features a precision-balanced design to minimize vibrations and ensure smooth operation. Additionally, it includes damping mechanisms to reduce noise and enhance overall performance.

Benefits of Using the 3357686 Flywheel Assembly

Utilizing this part offers several advantages. Its robust construction and precise engineering contribute to improved engine performance and durability. The assembly helps to enhance the efficiency of the engine by providing a stable rotational speed, which can lead to better fuel economy. Furthermore, its high-quality materials and design ensure long-lasting reliability, reducing the need for frequent replacements.

Installation Process

Installing the 3357686 Flywheel Assembly requires careful attention to detail and the use of appropriate tools. The process involves removing the old flywheel, cleaning the mating surfaces, and aligning the new assembly with the crankshaft. It is important to ensure that the flywheel is properly balanced and secured to prevent vibrations and ensure optimal performance. Following the manufacturer’s guidelines and using the recommended torque specifications is crucial for a successful installation.

Maintenance Tips

To ensure the longevity and optimal performance of the 3357686 Flywheel Assembly, regular maintenance is necessary. This includes inspecting the flywheel for signs of wear or damage, ensuring that all mounting bolts are tight, and checking the alignment with the crankshaft. Additionally, keeping the flywheel clean and free from contaminants will help maintain its efficiency. Regular inspections should be conducted according to the manufacturer’s recommendations to identify any potential issues early.

Troubleshooting Common Issues

Common issues with flywheel assemblies can include excessive wear, vibrations, and difficulty in engaging the clutch. These problems can often be traced to improper installation, lack of maintenance, or the use of incompatible components. Troubleshooting steps may involve inspecting the flywheel for damage, ensuring proper alignment and balance, and checking the condition of the clutch and transmission components. Addressing these issues promptly can help prevent more significant problems down the line.

Compatibility and Applications

The 3357686 Flywheel Assembly is designed for use in a variety of commercial truck applications. It is compatible with specific engine models, ensuring a precise fit and optimal performance. Its versatility makes it a popular choice for fleet operators and maintenance professionals who require reliable and high-performing components for their vehicles.

Cummins: A Brief Overview

Cummins Inc. is a renowned manufacturer with a long-standing reputation in the automotive and heavy-duty truck industry. The company is known for its commitment to producing high-quality components that meet the demanding requirements of commercial applications. Cummins’ expertise in engine technology and component design ensures that their products, like the 3357686 Flywheel Assembly, deliver reliable performance and durability.

Cummins Flywheel Assembly Part 3357686 Compatibility

The Cummins Flywheel Assembly part number 3357686 is designed to fit seamlessly with several engine models, ensuring optimal performance and reliability. This part is engineered to meet the stringent requirements of various engine applications, providing a robust solution for engine operation.

Engine Compatibility

  • 6B5.9 Series
    • The 3357686 Flywheel Assembly is specifically engineered for the 6B5.9 engines. This compatibility ensures that the flywheel assembly integrates smoothly with the engine’s design, enhancing the overall efficiency and durability of the engine.

Integration and Performance

The flywheel assembly plays a role in the engine’s operation by storing rotational energy and helping to smooth out the power delivery from the engine to the transmission. When installed in the 6B5.9 engines, the 3357686 part ensures that the engine runs smoothly and efficiently, reducing wear and tear on the engine components.

Installation Considerations

When installing the 3357686 Flywheel Assembly in the 6B5.9 engines, it is essential to follow the manufacturer’s guidelines to ensure proper alignment and secure fitting. This will help to maintain the integrity of the engine and prevent any potential issues that could arise from improper installation.

Maintenance and Reliability

Regular maintenance of the flywheel assembly is crucial to ensure the longevity and performance of the 6B5.9 engines. Cummins recommends periodic inspections and replacements as per the engine’s maintenance schedule to avoid any disruptions in engine operation.

Role of Part 3357686 Flywheel Assembly in Engine Systems

The flywheel assembly, identified by part number 3357686, is an integral component in the operation of engine systems. It is primarily responsible for storing rotational energy and ensuring smooth power delivery between the engine’s power strokes.

When the engine’s pistons move, they generate rotational force that is transferred to the crankshaft. The flywheel assembly is connected to the crankshaft and plays a role in maintaining consistent rotational speed, which is essential for the engine’s operation.

The flywheel assembly interfaces with the clutch system, allowing for the transfer of power from the engine to the transmission. During gear changes, the flywheel ensures that the engine continues to run smoothly without stalling, providing a stable platform for the clutch to engage and disengage.

Additionally, the flywheel assembly contributes to the engine’s vibration dampening. By absorbing and smoothing out the pulses of torque generated by the engine’s combustion cycles, it helps reduce vibrations that could otherwise be transmitted to the vehicle’s drivetrain and chassis.

Conclusion

In summary, the 3357686 Flywheel Assembly is a key component that ensures the engine operates efficiently and smoothly, facilitating power transfer and minimizing vibrations within the engine system. Its robust design, precise engineering, and compatibility with various engine models make it a reliable choice for commercial truck applications.


  1. Hilgers, Michael. Entire Vehicle: Second Edition. Springer Nature, 2023.

  2. Eret, Angelina. Dynamic and Fatigue Assessment of Heavy-Duty Engine Valves. Springer Nature, 2024.

  3. Giles, Tim. Automotive Engines Diagnosis Repair and Rebuilding. Cengage Learning, 2019.

* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.