3967608
Accessory Drive Gear
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$169.95 $202.24

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Accessory Drive Gear 3967608, manufactured by Cummins, is a component designed for use in commercial truck operations. Cummins, a well-established name in the industry, produces this gear to enhance the functionality and efficiency of truck engines. The Accessory Drive Gear 3967608 is integral to the operation of various engine accessories, contributing to the overall performance and reliability of the vehicle.

Basic Concepts of Accessory Drive Gear

An Accessory Drive Gear is a component within a truck’s engine system that facilitates the operation of various engine accessories. It operates by transferring rotational force from the engine to these accessories, ensuring they function correctly. The gear is typically connected to a belt or chain drive system, which allows it to power components such as the alternator, water pump, and air conditioning compressor 1.

Purpose of Accessory Drive Gear 3967608

The Accessory Drive Gear 3967608 plays a specific role in the operation of a truck by driving essential accessories that contribute to engine performance. This gear is responsible for powering components such as the alternator, which generates electricity for the vehicle’s electrical systems, and the water pump, which circulates coolant to maintain optimal engine temperature. By ensuring these accessories operate efficiently, the Accessory Drive Gear 3967608 helps maintain the engine’s overall performance and longevity 2.

Key Features

The Accessory Drive Gear 3967608 is characterized by several primary features that enhance its functionality and durability. It is constructed from high-quality materials that resist wear and corrosion, ensuring long-lasting performance. The design of the gear includes precise tooth profiling to ensure smooth operation and minimal noise. Additionally, it features a robust mounting system that secures it firmly in place, reducing the risk of misalignment or failure during operation 3.

Benefits

The Accessory Drive Gear 3967608 offers several advantages, including improved efficiency and reliability. Its high-quality construction and precise design contribute to smooth operation and reduced maintenance requirements. Additionally, it is compatible with Cummins engines, ensuring seamless integration and optimal performance. The gear’s durability and efficiency help enhance the overall reliability of the truck’s engine system.

Installation and Compatibility

Proper installation of the Accessory Drive Gear 3967608 is crucial for ensuring optimal performance and longevity. It should be installed according to the manufacturer’s guidelines, which may include specific torque settings and alignment procedures. Ensuring the gear is correctly positioned and securely fastened will help prevent issues such as misalignment or premature wear. Compatibility with Cummins engines is a key consideration, as this ensures the gear will function correctly within the engine system.

Maintenance and Troubleshooting

Routine maintenance practices are important for ensuring the longevity and efficiency of the Accessory Drive Gear 3967608. Regular inspections should be conducted to check for signs of wear or damage, and any issues should be addressed promptly. Common troubleshooting tips include checking for proper alignment, ensuring the belt or chain drive system is in good condition, and verifying that the gear is securely mounted. Following these maintenance practices will help prevent potential issues and ensure the gear continues to operate efficiently.

Performance Impact

The Accessory Drive Gear 3967608 affects the overall performance of the truck by ensuring the efficient operation of engine accessories. This contributes to improved fuel efficiency, as well-maintained accessories require less power to operate. Additionally, the gear’s role in driving components such as the alternator and water pump helps maintain optimal engine output and reliability. By ensuring these accessories function correctly, the Accessory Drive Gear 3967608 plays a part in the truck’s overall performance and durability.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its high-quality engines and components. Founded in 1919, Cummins has a long history of innovation and excellence. The company offers a wide range of products, including engines, filtration systems, and powertrain components, designed to meet the needs of various industries. Cummins is renowned for its commitment to quality, reliability, and performance, making it a trusted name in the commercial truck sector.

Accessory Drive Gear 3967608 Compatibility with Cummins Engines

The Accessory Drive Gear part number 3967608, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is crucial for the proper functioning of the engine’s accessory drive system, ensuring that components such as the alternator, water pump, and air conditioning compressor operate correctly.

Compatible Engines

  • 4B3.9
  • 6B5.9
  • 6C8.3
  • B5.9 G
  • C8.3 G

These engines are part of the broader range of Cummins diesel engines, known for their reliability and performance in various applications. The Accessory Drive Gear 3967608 is engineered to meet the specific requirements of these engines, ensuring a secure and efficient fit.

Additional Compatible Engines

  • QSC8.3 CM850 (CM2850)
  • QSC9 CM2250 / QSL9 CM2250
  • QSL9 CM2350 L102

These engines, while part of the Cummins QSC and QSL series, also benefit from the Accessory Drive Gear 3967608. This part is designed to integrate seamlessly with the unique features and specifications of these engines, providing consistent performance and durability.

The Accessory Drive Gear 3967608 is a critical component for maintaining the operational integrity of these engines, ensuring that all connected accessories function as intended.

Role of Part 3967608 Accessory Drive Gear in Engine Systems

The Accessory Drive Gear, identified by part number 3967608, is integral to the efficient operation of various engine systems. It is specifically designed to interface with the front gear train accessory and the front gear train accessory drive.

When the Accessory Drive Gear is engaged with the front gear train accessory, it facilitates the transfer of rotational force from the engine’s crankshaft to various auxiliary components. This ensures that these accessories, which may include the alternator, power steering pump, and air conditioning compressor, receive the necessary power to function correctly.

The interaction between the Accessory Drive Gear and the front gear train accessory drive is equally important. This drive system relies on the precise meshing of gears to maintain synchronization and efficiency. The Accessory Drive Gear helps in maintaining the correct timing and speed of the accessory drive, which is essential for the smooth operation of the engine’s ancillary systems.

Additionally, the mounting of the Accessory Drive Gear is designed to provide a stable and secure connection to the front gear train accessory. This mounting system ensures that the gear remains in the correct position and orientation, reducing the risk of misalignment or wear. Proper mounting is vital for the longevity and reliability of the gear and the overall engine system.

In summary, the Accessory Drive Gear plays a significant role in the coordination and efficiency of the engine’s accessory systems by ensuring proper power transmission, synchronization, and secure mounting.

Conclusion

The Accessory Drive Gear 3967608 is a vital component in the operation of commercial truck engines, particularly those manufactured by Cummins. Its role in driving essential accessories such as the alternator and water pump ensures the efficient and reliable performance of the engine. The gear’s high-quality construction, precise design, and compatibility with Cummins engines contribute to its effectiveness and durability. Proper installation, maintenance, and troubleshooting practices are essential for maximizing the performance and longevity of this Cummins part. By understanding the key features, benefits, and role of the Accessory Drive Gear 3967608, truck operators and maintenance professionals can ensure the optimal operation of their vehicles.


  1. Bennett, S., & Norman, I. A. (2011). Heavy Duty Truck Systems, Fifth Edition. Delmar Cengage Learning.

  2. Viskup, R. (2020). Diesel and Gasoline Engines. IntechOpen.

  3. Osgood, L., Cameron, G., & Christensen, E. (2024). Engineering Mechanics: Statics. Creative Commons.

SPECIFICATIONS

Package Dimensions
5.1 x 5.1 x 1.13 in
Weight
2.35 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.