4981225
Accessory Drive Gear
Cummins®

The Cummins 4981225 Accessory Drive Gear is a critical component in heavy-duty trucks, facilitating the transfer of power from the engine to various accessories. Understanding its purpose and functionality is essential for maintaining the efficiency and reliability of these vehicles.

Basic Concepts of Accessory Drive Gear

An Accessory Drive Gear is a mechanical component that transmits power from the engine to various accessories. It operates by engaging with a drive belt or chain, powering components such as alternators, water pumps, and power steering pumps. The interaction between the Accessory Drive Gear and these components is vital for the proper functioning of the vehicle ³.

Purpose of the 4981225 Accessory Drive Gear

This Cummins part plays a role in the operation of a truck by driving essential accessories. It powers the alternator to generate electricity, the water pump to circulate coolant, and the power steering pump to assist in steering. Its function ensures that these accessories operate efficiently, contributing to the overall performance of the truck ².

Key Features

The 4981225 Accessory Drive Gear is characterized by its robust design and the materials used in its construction. It is engineered to withstand the demanding conditions of heavy-duty truck operations. Unique attributes such as precision machining and high-quality materials enhance its performance and durability, ensuring reliable operation under various conditions ⁴.

Benefits

Using the 4981225 Accessory Drive Gear offers several benefits. It contributes to improved efficiency and reliability of the truck’s accessory systems. Its durable construction ensures longevity, reducing the need for frequent replacements. Additionally, it plays a role in maintaining the overall performance and fuel efficiency of the vehicle ³.

Installation and Compatibility

Proper installation of this part is important for its effective operation. It is compatible with various Cummins engine models, ensuring that it can be integrated into different heavy-duty truck systems. Following manufacturer guidelines during installation helps in achieving optimal performance and longevity of the component ¹.

Maintenance and Troubleshooting

Regular maintenance of the 4981225 Accessory Drive Gear is important for its continued efficient operation. This includes periodic inspections for signs of wear or damage. Common issues such as noise, vibration, or a decrease in accessory performance can often be traced back to the Accessory Drive Gear. Addressing these issues promptly helps in maintaining the overall health of the truck’s accessory systems ².

Performance Enhancements

The 4981225 Accessory Drive Gear contributes to the overall performance of the truck. By ensuring that accessories such as the alternator and water pump operate efficiently, it plays a role in maintaining fuel efficiency and power output. Its reliable operation is a factor in the smooth and efficient running of the vehicle ³.

Safety Considerations

When working with the 4981225 Accessory Drive Gear, observing safety practices and precautions is important. This includes ensuring that the engine is off and cooled down before beginning any work. Using the appropriate tools and following manufacturer guidelines helps in protecting the well-being of mechanics and operators ⁴.

Compatibility with Cummins Engines

The Accessory Drive Gear 4981225, manufactured by Cummins, is designed to fit seamlessly with several of their engine models. This part plays a pivotal role in ensuring the proper functioning of engine accessories, which are essential for the overall operation and efficiency of the engine.

B6.7 CM2670 and B153B Engines

The Accessory Drive Gear 4981225 is specifically engineered to fit the B6.7 CM2670 and B153B engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The gear ensures that the accessories such as the alternator, water pump, and air conditioning compressor operate smoothly, maintaining the engine’s efficiency and longevity.

F3.8 CM2620 and F137B Engines

Similarly, the Accessory Drive Gear 4981225 is also compatible with the F3.8 CM2620 and F137B engines. These engines are designed for versatility and are commonly found in a variety of applications, from industrial to commercial use. The gear’s precision fitment is crucial for the effective transfer of power to the engine accessories, ensuring they function optimally under varying operational conditions.

ISBE4 CM850 Engine

The Accessory Drive Gear 4981225 is also designed to integrate with the ISBE4 CM850 engine. This engine is known for its high power output and efficiency, making it suitable for demanding applications. The gear’s compatibility with this engine ensures that the accessories receive the necessary power, contributing to the engine’s overall performance and reliability.

Conclusion

The Cummins 4981225 Accessory Drive Gear is a vital component in the operation of heavy-duty trucks, ensuring the efficient transfer of power to essential accessories. Its robust design, compatibility with various Cummins engines, and the benefits it offers in terms of performance and reliability make it an indispensable part of the vehicle’s system. Regular maintenance and proper installation are key to maximizing its effectiveness and longevity.