3521440
Thrust Collar
Cummins®

The Cummins 3521440 Thrust Collar is a specialized component designed for use in heavy-duty truck engines. Its purpose is to manage axial loads and maintain crankshaft alignment, contributing to the overall efficiency and durability of the engine. Understanding the role and significance of the thrust collar is vital for maintaining and optimizing engine performance.

Basic Concepts of Thrust Collars

A thrust collar, also known as a thrust washer, is a mechanical component that facilitates the smooth operation of an engine by managing axial loads. It interacts with other engine components, such as the crankshaft and bearings, to ensure proper alignment and reduce friction. The thrust collar’s primary function is to distribute axial forces evenly, preventing excessive wear and ensuring the crankshaft operates within specified tolerances ¹.

Purpose of the 3521440 Thrust Collar

The Cummins 3521440 Thrust Collar plays a role in the operation of a truck engine by managing axial loads and maintaining crankshaft alignment. It is positioned between the crankshaft and the thrust bearing, allowing for the even distribution of forces that occur during engine operation. This helps in reducing wear on the crankshaft and bearings, ensuring smooth and efficient engine performance ².

Key Features

The Cummins 3521440 Thrust Collar is engineered with specific features to enhance its performance. It is typically made from high-quality materials that offer durability and resistance to wear. The design specifications include precise dimensions to ensure a proper fit and optimal function within the engine. Additionally, the thrust collar may have unique attributes such as surface treatments or coatings that further improve its performance and longevity ³.

Benefits

The advantages provided by the Cummins 3521440 Thrust Collar include improved engine durability, reduced wear on the crankshaft and bearings, and enhanced overall engine performance. By effectively managing axial loads and maintaining alignment, the thrust collar contributes to the smooth operation of the engine, leading to increased reliability and efficiency. Additionally, its high-quality construction ensures longevity, reducing the need for frequent replacements.

Installation Process

Proper installation of the Cummins 3521440 Thrust Collar is crucial for ensuring its effectiveness and the overall performance of the engine. The installation process involves several steps:

1. Ensure the engine is clean and free of debris.
2. Position the thrust collar between the crankshaft and the thrust bearing.
3. Use appropriate tools to secure the collar in place, ensuring it is properly aligned.
4. Double-check the alignment and fit to prevent any issues during engine operation.

Common Issues and Troubleshooting

Common problems associated with thrust collars include wear, misalignment, or failure. These issues can lead to increased friction, excessive wear on the crankshaft and bearings, and potentially severe engine damage. Troubleshooting methods may involve inspecting the collar for signs of wear or damage, checking the alignment, and ensuring proper fit. If issues are detected, the thrust collar may need to be replaced or adjusted to restore optimal engine performance.

Maintenance Tips

Regular maintenance practices are essential for ensuring the longevity and optimal performance of the Cummins 3521440 Thrust Collar. Recommendations include:

• Inspecting the thrust collar during routine engine maintenance.
• Checking for signs of wear or damage.
• Ensuring proper alignment and fit.
• Following manufacturer guidelines for inspection intervals and replacement schedules.

Cummins Overview

Cummins Inc. is a renowned manufacturer in the automotive industry, particularly known for its production of heavy-duty truck components. With a rich history of innovation and quality, Cummins offers a wide range of products designed to enhance engine performance and durability. The company’s reputation for reliability and excellence makes its components, including the 3521440 Thrust Collar, a preferred choice for heavy-duty applications.

Cummins Thrust Collar 3521440 Compatibility

The Cummins Thrust Collar part number 3521440 is designed to fit a variety of Cummins engine models. Here is a detailed overview of its compatibility across different engine types:

ISX Series

• ISX CM570
• ISX CM870
• ISX15 CM2250 SN

The ISX series engines, including the CM570, CM870, and the ISX15 CM2250 SN, are high-performance engines used in heavy-duty applications. The thrust collar is integral in these engines, ensuring the crankshaft remains properly aligned and reducing wear.

K Series

• K19
• K38

The K19 and K38 engines are known for their durability and efficiency in medium-duty applications. The thrust collar in these engines plays a critical role in maintaining the alignment of the crankshaft and connecting rod, which is essential for the smooth operation of the engine.

N14 Series

• N14 CELECT
• N14 CELECT PLUS
• N14 MECHANICAL

The N14 series engines, including the CELECT, CELECT PLUS, and MECHANICAL variants, are widely used in both on-highway and off-highway applications. The thrust collar in these engines ensures the crankshaft is properly aligned, which is crucial for the longevity and performance of the engine.

NH/NT Series

• NH/NT 855

The NH/NT 855 engine is designed for vocational applications, providing robust performance and reliability. The thrust collar in this engine is essential for maintaining the alignment of the crankshaft, which helps in reducing wear and ensuring efficient operation.

QSK Series

• QSK19G
• QSK38 CM850 MCRS

The QSK series engines, including the QSK19G and QSK38 CM850 MCRS, are used in heavy-duty applications such as mining and construction. The thrust collar in these engines is critical for maintaining the alignment of the crankshaft, which is vital for the engine’s performance and durability.

QSM Series

• QSM11 CM570

The QSM11 CM570 engine is designed for medium-duty applications, offering a balance of power and efficiency. The thrust collar in this engine ensures the crankshaft remains properly aligned, which is essential for the engine’s smooth operation and longevity.

X15 Series

• X15 CM2350 X123B

The X15 CM2350 X123B engine is used in heavy-duty applications, providing high performance and reliability. The thrust collar in this engine is essential for maintaining the alignment of the crankshaft, which is crucial for the engine’s efficiency and durability.

The thrust collar part number 3521440 is a critical component in ensuring the proper alignment of the crankshaft in these various Cummins engine models. Its compatibility across different engine series highlights its importance in maintaining engine performance and longevity.

Role of Part 3521440 Thrust Collar in Engine Systems

The part 3521440 Thrust Collar is an integral component in the efficient operation of various engine systems. It is primarily responsible for managing axial loads within the turbocharger, ensuring smooth and reliable performance.

Turbocharger and Turbocharger Core

In the turbocharger and turbocharger core, the Thrust Collar helps in maintaining the proper positioning of the turbine and compressor wheels. It absorbs the axial forces generated during operation, preventing undue stress on the bearings and other internal components. This results in enhanced durability and performance of the turbocharger.

Heat3B and Heat60 Turbocharger

For the Heat3B and Heat60 turbochargers, the Thrust Collar plays a significant role in thermal management. By effectively handling axial loads, it contributes to the stable operation of these high-performance turbochargers, even under extreme temperature conditions. This stability is essential for the longevity and efficiency of the Heat3B and Heat60 systems.

EBM: Turbocharger and EBM: Performance Parts

In the context of EBM: Turbocharger and EBM: Performance Parts, the Thrust Collar is vital for optimizing performance. It ensures that the turbocharger operates within its designed parameters, allowing for maximum power output while maintaining reliability. This is particularly important in high-performance applications where every component must work in harmony.

Turbine Housing Repair Kit and Supercore Assembly 4LGK

When integrated into the Turbine Housing Repair Kit and Supercore Assembly 4LGK, the Thrust Collar aids in the precise alignment and functioning of the turbine housing. This alignment is crucial for the efficient flow of exhaust gases, which directly impacts the turbocharger’s ability to generate boost. Proper thrust management also reduces the likelihood of component wear and failure.

Engine Brake Control and Control Kit

In systems utilizing Engine Brake Control and Control Kit, the Thrust Collar ensures that the turbocharger can handle the additional loads imposed by engine braking. This is essential for maintaining control and stability, especially in heavy-duty applications where engine braking is frequently used.

Aftercooler and Core Assembly HT3B (DCM)

The Aftercooler and Core Assembly HT3B (DCM) benefit from the Thrust Collar by ensuring that the turbocharger can operate efficiently even after the air has been cooled. This contributes to better overall engine performance and fuel efficiency, as the turbocharger can handle the denser, cooler air more effectively.

EBM: Injector and Injector Plumbing

For EBM: Injector and Injector Plumbing systems, the Thrust Collar’s role in maintaining turbocharger stability ensures that the fuel injection system receives consistent and reliable boost pressure. This consistency is key to achieving precise fuel delivery and combustion, which are critical for engine performance and emissions control.

Campaign Kit and Core Assembly Heat3B

In the Campaign Kit and Core Assembly Heat3B, the Thrust Collar helps in enhancing the reliability of the turbocharger during prolonged use. By managing axial loads, it contributes to the overall durability of the campaign kit components, ensuring that they can withstand the rigors of extended operation.

HC3 and Turbocharger Parts Kit

Finally, in the HC3 and Turbocharger Parts Kit, the Thrust Collar is a fundamental component that ensures all parts within the kit function cohesively. Its role in managing thrust loads is essential for the kit’s overall performance, making it a key element in any turbocharger parts assembly.

Conclusion

The Cummins 3521440 Thrust Collar is a critical component in the efficient operation of heavy-duty truck engines. Its role in managing axial loads and maintaining crankshaft alignment contributes to the overall durability and performance of the engine. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engine models are essential for ensuring optimal engine performance.