4980403
Alternator Support
Cummins®

The Cummins 4980403 Alternator Support is a component designed to enhance the operation of commercial trucks. Its purpose is to provide stable support for the alternator, ensuring it functions efficiently within the truck’s electrical system. This support is significant for maintaining the alternator’s position and performance, which are vital for the truck’s overall operation ³.

Basic Concepts of Alternator Support

An alternator support serves as a mounting bracket that secures the alternator to the engine. It plays a role in the truck’s electrical system by ensuring the alternator remains in the correct position and operates efficiently. The alternator support interacts with other components such as the engine and the electrical system to maintain a stable and reliable power supply for the truck ⁴.

Purpose of the 4980403 Alternator Support

This Cummins part is designed to maintain the alternator’s position and ensure its efficient performance. By securely mounting the alternator, it helps in reducing vibrations and maintaining alignment, which are important for the alternator’s longevity and the truck’s electrical system’s reliability. This support allows the alternator to function optimally, providing consistent power to the truck’s electrical components ¹.

Key Features

The 4980403 Alternator Support features a robust material construction, typically made from high-strength materials to withstand the rigors of commercial truck operation. Its design includes precise mounting points and brackets that ensure a secure fit. Additionally, it may incorporate unique attributes such as vibration dampening features to enhance its functionality and the alternator’s performance ².

Benefits

This part offers several benefits, including improved reliability and durability of the alternator. By providing a stable mount, it helps in reducing wear and tear on the alternator, leading to longer service life. Additionally, it ensures efficient performance of the truck’s electrical system, contributing to overall vehicle reliability and performance ³.

Installation Process

Installing the 4980403 Alternator Support involves several steps. First, the old support (if present) should be removed. Then, the new support should be aligned with the mounting points on the engine. Secure it in place using the provided fasteners, ensuring it is tightly fitted. Finally, verify the alternator’s alignment and ensure there is no excessive vibration. Specific considerations may include torque specifications for fasteners and ensuring all connections are tight ⁴.

Troubleshooting Common Issues

Common issues with the 4980403 Alternator Support may include loose mounting, which can lead to alternator misalignment or increased vibration. To address this, check the fasteners for proper tightness and ensure the support is correctly aligned with the engine’s mounting points. If vibration persists, inspect the support for any damage or wear that may require replacement ¹.

Maintenance Tips

To ensure the longevity and optimal performance of the 4980403 Alternator Support, regular inspection and care are important. Inspect the support for any signs of wear, corrosion, or damage during routine maintenance checks. Ensure all fasteners are tight and the alternator is properly aligned. Additionally, keep the area around the support clean to prevent debris from affecting its performance ².

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins is renowned for its high-quality engines, filtration systems, and related technologies. The company’s product range includes engines for on-highway and off-highway applications, as well as power generation equipment. Cummins is respected in the commercial truck industry for its innovation, reliability, and commitment to customer satisfaction.

Cummins Alternator Support Part 4980403 Compatibility

The Cummins Alternator Support part number 4980403 is designed to fit a variety of Cummins engines, ensuring a secure and reliable mounting for the alternator. This part is crucial for maintaining the alternator’s position and function, which is essential for the engine’s electrical system.

Compatible Engines

B6.7 Series:

• B6.7 CM2670
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• ISB/ISD6.7 CM2150 SN

ISB Series:

• ISB CM2150
• ISB/ISD4.5 CM2150 B119
• ISBE CM2150
• ISBE4 CM850

QSB Series:

• QSB4.5 CM850 (CM2850)
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

The part 4980403 is engineered to ensure compatibility across these engine models, providing a standardized solution for alternator support. This compatibility allows for easier maintenance and replacement, reducing downtime and ensuring that the alternator operates efficiently ³.

Understanding the Role of Part 4980403 Alternator Support in Engine Systems

The 4980403 Alternator Support is an integral component in the assembly and functionality of engine systems, specifically in relation to the alternator. This part ensures the secure and stable mounting of the alternator, which is essential for the efficient operation of the vehicle’s electrical system ⁴.

Integration with Alternator Mounting

The 4980403 Alternator Support works in conjunction with the alternator mounting system. It provides a robust framework that supports the alternator, allowing it to be firmly attached to the engine block or other structural components. This support is vital for maintaining the alternator’s position and alignment, which is necessary for the belt-driven system that powers it ¹.

Relationship with the Alternator

The alternator is a key component in the vehicle’s electrical system, responsible for generating power to recharge the battery and supply electricity to the vehicle’s electrical systems while the engine is running. The 4980403 Alternator Support plays a significant role in this process by ensuring that the alternator is held in the correct position. This allows the drive belt to engage properly with the alternator’s pulley, ensuring consistent and reliable power generation ².

Importance of Secure Mounting

Secure mounting of the alternator is essential for several reasons. Firstly, it prevents excessive movement or vibration, which can lead to wear and tear on the alternator and its connections. Secondly, it ensures that the drive belt remains properly tensioned, which is critical for the efficient transfer of power from the engine to the alternator. Lastly, it helps in dissipating any vibrations generated by the alternator, contributing to the overall smoothness and reliability of the engine’s operation ³.

Conclusion

In summary, the 4980403 Alternator Support is a fundamental component in the engine system, providing the necessary stability and support for the alternator. Its proper installation and maintenance are essential for the reliable and efficient operation of the vehicle’s electrical system ⁴.