3955160
Accessory Drive Gear
Cummins®

The Accessory Drive Gear 3955160, manufactured by Cummins, is a component designed to facilitate the operation of commercial trucks. This gear plays a role in the engine system by transferring power to various accessories, ensuring the efficient functioning of the truck. Cummins, a well-established name in the automotive industry, is known for its commitment to quality and innovation in manufacturing components for commercial vehicles ¹.

Basic Concepts of Accessory Drive Gear

An Accessory Drive Gear is a component that operates within a truck’s engine system, transferring rotational force from the engine to various accessories such as the alternator, water pump, and power steering pump. This gear interacts with the engine’s crankshaft and other drive components, enabling the accessories to function properly. The efficient operation of these accessories is vital for the overall performance and reliability of the truck ².

Purpose of Accessory Drive Gear 3955160

The Accessory Drive Gear 3955160 is specifically designed to transfer power from the engine to various accessories in a truck. Its role involves ensuring that these accessories receive the necessary power to operate efficiently. By maintaining a consistent power transfer, this gear contributes to the smooth and reliable operation of the truck’s engine system.

Key Features

The Accessory Drive Gear 3955160 is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring resistance to wear and corrosion. The design of this gear includes precise tooth profiling and robust construction, which contribute to its efficient power transmission capabilities. Additionally, it is engineered to withstand the demanding conditions of commercial truck operations, providing reliable service over extended periods.

Benefits

The Accessory Drive Gear 3955160 offers several benefits, including improved efficiency and reliability in power transmission to engine accessories. Its high-quality construction ensures durability, reducing the likelihood of premature failure. Additionally, the precise engineering of this gear contributes to the overall performance and longevity of the truck’s engine system, providing value to fleet operators and maintenance professionals.

Installation Process

Proper installation of the Accessory Drive Gear 3955160 is crucial for ensuring its effective operation. The process involves several steps, including preparing the engine compartment, aligning the gear with the crankshaft, and securing it in place using appropriate tools and equipment. It is important to follow manufacturer guidelines to ensure correct fitting and optimal performance. Attention to detail during installation can prevent issues and ensure the longevity of the component.

Troubleshooting Common Issues

Common problems associated with Accessory Drive Gears may include noise, vibration, and improper power transmission. These issues can arise from various causes, such as misalignment, wear, or contamination. Recommended troubleshooting steps involve inspecting the gear for signs of damage or wear, checking alignment with other components, and ensuring that the gear is properly lubricated. Addressing these issues promptly can help maintain the efficiency and reliability of the truck’s engine system.

Maintenance Tips

Regular maintenance of the Accessory Drive Gear 3955160 is important for ensuring its continued efficient operation. Maintenance procedures include periodic inspection for signs of wear or damage, cleaning to remove contaminants, and lubrication to reduce friction and wear. It is also important to monitor the condition of the gear and consider replacement or repair when necessary to prevent potential failures and ensure the reliability of the truck’s engine system.

Compatibility with Cummins Engines

The Accessory Drive Gear, part number 3955160, is designed to fit seamlessly with several Cummins engines, ensuring reliable operation and performance.

QSB4.5 Series

• QSB4.5 CM2250 EC
• QSB4.5 CM850 (CM2850)

QSB6.7 Series

• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)

QSB7 Series

• QSB7 CM2880 B117

By ensuring compatibility with these various engine models, the Accessory Drive Gear (part number 3955160) provides a reliable and efficient solution for driving engine accessories across different Cummins engine series.

Role of Accessory Drive Gear 3955160 in Engine Systems

The Accessory Drive Gear, identified by part number 3955160, is integral to the operation of various engine systems, particularly in the context of the rear gear train accessory mounting. This component facilitates the transfer of rotational force from the engine’s crankshaft to a multitude of accessories that are essential for the engine’s performance and functionality.

In the rear gear train accessory mounting configuration, the Accessory Drive Gear engages with other gears within the gear train, ensuring a synchronized and efficient transfer of power. This setup is designed to drive accessories such as the alternator, power steering pump, air conditioning compressor, and other ancillary components that rely on mechanical power from the engine.

The Accessory Drive Gear operates in conjunction with the timing gear set, which includes the crankshaft gear, camshaft gear, and intermediate gears. This interplay ensures that the accessories receive the necessary drive at the correct speed and timing, which is vital for their optimal operation.

Furthermore, the Accessory Drive Gear is part of a system that may include tensioners, idlers, and dampers. These components work together to maintain the proper tension and alignment of the drive belts or chains that connect the Accessory Drive Gear to the various accessories. This ensures that power is transmitted smoothly and efficiently, minimizing wear and reducing the risk of failure.

Conclusion

In summary, the Accessory Drive Gear (part 3955160) plays a significant role in the rear gear train accessory mounting by providing the necessary drive to engine accessories, ensuring they operate in harmony with the engine’s rhythm and contribute to the overall efficiency and reliability of the engine system.