3967609
Accessory Drive Gear
Cummins®

Introduction

The Cummins 3967609 Accessory Drive Gear is a critical component designed for commercial trucks, facilitating the drive mechanism for various engine accessories. Understanding its function and integration within the engine system is essential for maintaining the efficiency and reliability of truck engines.

Basic Concepts of Accessory Drive Gear

An accessory drive gear transfers rotational force from the engine to various accessories, such as the alternator, water pump, and air conditioning compressor. This transfer is essential for the operation of these accessories, which support the engine’s performance and the vehicle’s overall functionality ¹.

Purpose of the Cummins 3967609 Accessory Drive Gear

The Cummins 3967609 Accessory Drive Gear is engineered to drive a range of accessories in commercial trucks. It transfers engine power to accessories like the alternator for electrical power generation, the water pump for engine cooling, and other systems that contribute to the truck’s operation. By efficiently driving these accessories, it helps maintain engine performance and ensures the truck operates smoothly under various conditions ².

Key Features

The Cummins 3967609 Accessory Drive Gear is characterized by several design elements and materials that enhance its functionality and durability. It is constructed from high-quality materials to withstand the rigors of commercial truck operation. Its design includes precise gear teeth for efficient power transfer and durability. Additionally, it may feature unique characteristics such as noise reduction technologies or enhanced compatibility with specific engine models.

Benefits

Utilizing the Cummins 3967609 Accessory Drive Gear offers several advantages. It contributes to improved engine efficiency by ensuring accessories operate at optimal levels. The gear’s reliable performance supports the longevity of driven accessories, reducing the need for frequent replacements. Furthermore, its design and materials contribute to the overall durability and reliability of the engine system ³.

Installation and Compatibility

Proper installation of the Cummins 3967609 Accessory Drive Gear is vital for its effective operation. Installation procedures should follow manufacturer guidelines to ensure correct alignment and secure fitting. Compatibility with various Cummins engine models is a significant consideration, ensuring the gear functions correctly within the intended engine system.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 3967609 Accessory Drive Gear is essential for optimal performance. This includes periodic inspections for signs of wear, ensuring proper lubrication, and addressing any issues promptly. Troubleshooting common problems, such as unusual noises or decreased efficiency, can often be resolved through maintenance checks and adjustments.

Common Failures and Solutions

Common failure modes for the Cummins 3967609 Accessory Drive Gear include wear, misalignment, or damage. Addressing these issues may involve replacing worn components, realigning the gear, or repairing damage. Preventive measures, such as regular maintenance and proper installation, can help mitigate these failure modes.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of engine components and commitment to quality and innovation. With a rich history of providing reliable and efficient engine solutions, Cummins continues to be a trusted name in the industry, dedicated to advancing engine technology and performance.

Accessory Drive Gear (Part 3967609) Compatibility with Cummins Engines

The Accessory Drive Gear, part number 3967609, manufactured by Cummins, is designed to work seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. Below is a detailed overview of the engines with which this accessory drive gear is compatible.

Compatible Engines

4B3.9 Series

• 4B3.9

6B5.9 Series

• 6B5.9

6C8.3 Series

• 6C8.3
• 6C8.3 G

B4.5 Series

• B4.5

B5.9 G Series

• B5.9 G

C8.3 G Series

• C8.3 G

G5.9 Series

• G5.9

ISB CM554 Series

• ISC CM554
• ISL CM554

QSB3.9 30 CM550 Series

• QSB3.9 30 CM550

QSB5.9 30 CM550 Series

• QSB5.9 30 CM550

QSC8.3 CM554 Series

• QSC8.3 CM554

QSC8.3 CM850 (CM2850) Series

• QSC8.3 CM850 (CM2850)

QSC9 CM2250/QSL9 CM2250 Series

• QSC9 CM2250
• QSL9 CM2250

QSL8.9 CM2150 L141 Series

• QSL8.9 CM2150 L141

QSL9 CM2350 L102 Series

• QSL9 CM2350 L102

QSL9 CM554 Series

• QSL9 CM554

QSL9 CM850 (CM2850) Series

• QSL9 CM850 (CM2850)

This accessory drive gear is engineered to meet the specific needs of these engines, ensuring that they operate efficiently and reliably. Its compatibility across a wide range of models underscores its versatility and importance in maintaining the functionality of these engines.

Role of Part 3967609 Accessory Drive Gear in Engine Systems

The Accessory Drive Gear, identified by part number 3967609, is integral to the efficient operation of various engine systems. This component is specifically designed to interface with the drive system, ensuring smooth and reliable power transmission from the engine to the accessories that depend on it.

When integrated into the front gear train accessory, the Accessory Drive Gear plays a significant role in maintaining the synchronization of accessory components. This gear ensures that accessories such as the alternator, power steering pump, and air conditioning compressor receive consistent and appropriate power, which is essential for their optimal performance.

The mounting of the Accessory Drive Gear is equally important. Proper mounting ensures that the gear is securely in place, minimizing the risk of misalignment or wear. This stability is vital for the longevity and efficiency of the gear and the accessories it drives.

Conclusion

In summary, the Cummins 3967609 Accessory Drive Gear is a key component in the front gear train accessory system, facilitating the smooth operation and synchronization of engine-driven accessories through precise power transmission and secure mounting. Its compatibility with a wide range of Cummins engines underscores its versatility and importance in maintaining the functionality and reliability of these engines.