3917873
Accessory Drive Support
Cummins®

Introduction

The Cummins Accessory Drive Support, identified by part number 3917873, is a component designed to enhance the functionality and reliability of heavy-duty truck engines. This part is integral to the accessory drive system, ensuring that various engine accessories operate efficiently. Its role is to provide a stable and durable mounting platform for accessories, contributing to the overall performance and longevity of the engine.

Purpose and Function

The Accessory Drive Support plays a role in the truck’s accessory drive system by facilitating the operation of various engine accessories such as alternators, power steering pumps, and air conditioning compressors. It ensures that these accessories are securely mounted and properly aligned, allowing them to function optimally. This support structure helps maintain the correct tension and alignment of belts, which is crucial for the efficient transfer of power from the engine to the accessories ¹.

Key Features

The Cummins Accessory Drive Support 3917873 is constructed from high-strength materials, ensuring durability and resistance to wear and tear. Its design incorporates robust mounting points and precise alignment features to secure accessories firmly in place. The support is engineered to withstand the rigors of heavy-duty truck operations, providing a stable base that enhances the performance and reliability of the driven accessories.

Benefits

The use of the Cummins Accessory Drive Support 3917873 offers several advantages. Its durable construction contributes to the longevity of the accessory drive system, reducing the need for frequent replacements. Enhanced performance of driven accessories is achieved through precise alignment and secure mounting, which ensures efficient power transfer. Additionally, the support may contribute to increased engine efficiency by maintaining optimal accessory operation under various driving conditions.

Installation and Integration

Proper installation of the Accessory Drive Support involves several steps to ensure correct integration with the truck’s engine system. Prerequisites include verifying the compatibility of the support with the specific engine model and ensuring that the installation area is clean and free of obstructions. Tools required may include torque wrenches, alignment tools, and fasteners. The installation process should follow manufacturer guidelines to ensure that the support is securely mounted and properly aligned with the engine accessories.

Maintenance and Troubleshooting

Routine maintenance practices for the Accessory Drive Support include regular inspections for signs of wear, corrosion, or damage. Ensuring that mounting bolts are properly torqued and that accessories are correctly aligned can help maintain the reliability of the system. Common issues that may arise include belt slippage or accessory misalignment, which can often be addressed by re-tightening fasteners or adjusting the position of the accessories.

Compatibility and Applications

The Cummins Accessory Drive Support 3917873 is designed for use in specific types of engines and truck models. It is important to consult the manufacturer’s guidelines to ensure compatibility with the intended application. Specific application notes may include adjustments for different engine configurations or additional mounting requirements for certain truck models.

Performance Under Various Conditions

The Accessory Drive Support is engineered to perform reliably under a range of operating conditions. It is designed to withstand varying temperatures, load conditions, and driving environments, ensuring that the accessory drive system remains functional and efficient. Its robust construction and precise design contribute to consistent performance, even in demanding applications.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history of innovation and a strong reputation in the heavy-duty truck industry, Cummins is known for producing reliable and high-performance components that meet the needs of demanding applications. The company’s commitment to quality and customer satisfaction is reflected in its extensive product range and ongoing investment in research and development ².

Role of Part 3917873 Accessory Drive Support in Engine Systems

The Accessory Drive Support, identified by part number 3917873, is integral to the efficient operation of various engine components. It provides a stable mounting platform for accessories that are driven by the engine’s power, ensuring they function correctly and reliably.

Integration with Hydraulic Systems

In hydraulic systems, the Accessory Drive Support is essential for mounting the hydraulic pump. This pump is responsible for generating the pressurized fluid needed to operate hydraulic actuators and other components. The stable mounting provided by the Accessory Drive Support ensures that the hydraulic pump can operate without undue stress or vibration, which could otherwise lead to premature wear or failure.

Supporting Vacuum and Hydraulic Components

For vacuum/hydraulic systems, the Accessory Drive Support plays a similar role. It securely holds the vacuum pump, which creates the necessary vacuum for various engine functions, such as brake boosters and emission control systems. The consistent and vibration-free operation of the vacuum pump is vital for the reliable performance of these systems.

General Accessory Support

Beyond specific applications, the Accessory Drive Support is designed to accommodate a variety of engine-driven accessories. Whether it’s a standard pump or a more complex vacuum/hydraulic unit, this component ensures that each accessory is properly aligned and supported. This alignment is key to maintaining the efficiency and longevity of the entire engine system.

Conclusion

In summary, the Accessory Drive Support (part 3917873) is a foundational element in the engine’s accessory drive system, providing the necessary support and stability for a range of components, from hydraulic pumps to vacuum systems. Its role in maintaining the operational integrity of these accessories cannot be overstated.