4930973
Air Compressor Brace
Cummins®

The 4930973 Air Compressor Brace, a component manufactured by Cummins, plays a significant role in the automotive and heavy-duty truck industries. This brace is essential for the operation of heavy-duty trucks, offering support and stability to the air compressor system. Understanding its function and importance can aid in maintaining the efficiency and reliability of truck operations.

Function and Operation

Air compressor braces are engineered to support the air compressor, mitigating stress and vibrations that can arise during operation. The 4930973 specifically secures the compressor to the truck’s frame, maintaining its alignment and stability, which is crucial for consistent performance ¹.

Purpose of the 4930973 Air Compressor Brace

This Cummins part contributes to the stability and efficiency of the air compressor by ensuring it remains securely in place. This reduces the risk of misalignment or damage from vibrations, which is vital for delivering consistent air pressure necessary for various truck systems, including brakes and suspension ².

Key Features

Constructed from durable materials, the 4930973 is designed to withstand the demands of heavy-duty truck operations. It features precise mounting points for a secure fit and may include elements to minimize vibrations, enhancing the longevity of the compressor and the truck’s air system.

Benefits

The benefits of the 4930973 include improved durability of the air compressor due to reduced stress and vibrations, leading to fewer repairs and replacements. It also enhances overall system reliability by ensuring the compressor operates within optimal parameters, crucial for the safety and efficiency of heavy-duty truck operations.

Installation Considerations

Proper installation of the 4930973 is crucial for its effectiveness. It is important to follow manufacturer guidelines, which may include ensuring the truck’s frame is clean and free of obstructions. Special tools might be required, and consulting the manufacturer’s instructions is advisable to ensure correct positioning and securing.

Troubleshooting Common Issues

Common issues with the 4930973 may include loosening over time due to vibrations or damage from road conditions. Troubleshooting involves inspecting the brace for wear or movement, tightening any loose mounting points, and ensuring the compressor remains aligned. Replacement or repair may be necessary if damage is detected to maintain system integrity.

Maintenance Tips

Routine maintenance practices for the 4930973 include regular inspections for wear or damage. Ensuring all mounting points are secure and the brace remains in good condition helps maintain the longevity and optimal performance of the air compressor. Keeping the area around the brace clean and free of debris is also beneficial.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and power systems. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the automotive and heavy-duty truck industries. Their product range includes components and systems designed to enhance vehicle and equipment performance, efficiency, and reliability.

Cummins Air Compressor Brace 4930973 Compatibility

The Cummins Air Compressor Brace part number 4930973 is designed to be compatible with various Cummins engine models. This part is crucial for maintaining the structural integrity of the air compressor system, ensuring proper operation and longevity of the engine’s air supply.

Compatible Engines

• B4.5 CM2350 B129B
• D4.0 CM2620 D103B
• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B
• ISB4.5 CM2350 B104
• ISF3.8 CM2220 AN
• ISF3.8 CM2220 F103
• ISF3.8 CM2350 F109
• ISF4.5 CM2220 F123
• QSF3.8 CM2350 F107
• QSF3.8 CM2880 F112

Grouping of Compatible Engines

The 4930973 is engineered to fit seamlessly with the following groups of engines:

• F3.8 Series: F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2620 F137B, QSF3.8 CM2350 F107
• F4.5 Series: F4.5 CM2620 F139B
• ISF3.8 Series: ISF3.8 CM2220 AN, ISF3.8 CM2220 F103, ISF3.8 CM2350 F109
• ISF4.5 Series: ISF4.5 CM2220 F123
• Other Models: B4.5 CM2350 B129B, D4.0 CM2620 D103B, ISB4.5 CM2350 B104, QSF3.8 CM2880 F112

This compatibility ensures that the Air Compressor Brace can be used across various engine models, providing a reliable solution for maintaining the air compressor system’s structural integrity.

Role of Part 4930973 Air Compressor Brace in Engine Systems

The 4930973 Air Compressor Brace is integral to the stability and efficiency of various engine systems. It provides essential support to the compressor, ensuring it remains securely in place during operation. This stability is particularly important in high-vibration environments, where the compressor’s performance could otherwise be compromised.

Interaction with Accessories

When integrated with engine accessories, the 4930973 brace helps maintain alignment and reduces the risk of accessory misalignment. This is vital for the smooth operation of components such as the alternator, power steering pump, and air conditioning compressor. Proper alignment ensures that these accessories function efficiently and with minimal wear.

Wiring and Harness Support

The brace also plays a supportive role in managing the wiring and harness systems associated with the compressor. By securing the compressor in place, it indirectly protects the wiring and harness from undue stress and potential damage. This is especially important in systems where the wiring runs close to moving parts or high-heat areas.

Compressor Stability

Stability provided by the 4930973 brace is essential for the compressor’s consistent performance. A well-supported compressor can operate more efficiently, leading to better air delivery and system performance. This is particularly beneficial in systems where the compressor is a key component, such as in turbocharged engines or high-performance applications.

Electronic Control Module Wiring

In modern engine systems, the compressor often interacts with the Electronic Control Module (ECM) through dedicated wiring. The brace ensures that the compressor remains in the correct position, which is essential for the accurate reading and signaling between the compressor and the ECM. This interaction is vital for the ECM to make real-time adjustments to the compressor’s operation, optimizing performance and efficiency.

Conclusion

Overall, the 4930973 Air Compressor Brace enhances the reliability and performance of engine systems by providing necessary support to the compressor and associated components. Its role in maintaining stability, reducing vibrations, and ensuring proper alignment is crucial for the efficient operation of heavy-duty trucks and their various systems.