139867
Accessory Drive Support Gasket
Cummins®

The Accessory Drive Support Gasket, identified by Part #139867, is a component manufactured by Cummins, a well-established name in the automotive industry. This gasket plays a significant role in the functionality of heavy-duty trucks, ensuring the smooth operation of the accessory drive system. Cummins, known for its high-quality components, provides this gasket as part of its comprehensive range of parts designed to enhance the performance and reliability of heavy-duty engines ³.

Basic Concepts

An Accessory Drive Support Gasket is a sealing component used in the engine system of heavy-duty trucks. Its primary function is to provide a secure seal between the accessory drive components and the engine block. This gasket interacts with various engine components, including the front cover, accessory drive brackets, and the engine block itself, ensuring that no fluids or gases escape from the system. By maintaining a proper seal, it contributes to the efficient operation of the accessory drive system, which includes components like the alternator, power steering pump, and air conditioning compressor ⁴.

Purpose and Role

The Accessory Drive Support Gasket serves a vital role in the operation of a truck by maintaining the integrity of the accessory drive system. It ensures that the accessory drive components are properly sealed to the engine block, preventing leaks of engine oil, coolant, or other fluids. This seal is crucial for the efficient transfer of power from the engine to the accessories, ensuring that they operate smoothly and reliably. Additionally, the gasket helps in reducing vibrations and noise by providing a stable mounting surface for the accessory drive components ¹.

Key Features

The Cummins Accessory Drive Support Gasket is designed with several key features that enhance its performance. It is made from high-quality materials that are resistant to heat, pressure, and chemical exposure, ensuring durability and longevity. The gasket is precision-engineered to fit snugly between the accessory drive components and the engine block, providing a reliable seal. Its design includes features such as reinforced edges and multiple sealing surfaces to ensure a robust and lasting seal. These attributes make the Cummins gasket a reliable choice for heavy-duty applications ².

Benefits

The use of the Accessory Drive Support Gasket offers several benefits. It contributes to improved engine efficiency by ensuring that the accessory drive system operates without leaks, which can lead to power loss and increased wear on components. The gasket reduces the risk of leaks, which can cause contamination of engine oil and other fluids, leading to potential engine damage. Additionally, the enhanced durability of the accessory drive system due to the reliable seal provided by the gasket results in longer service intervals and reduced maintenance costs ³.

Installation and Compatibility

Proper installation of the Accessory Drive Support Gasket is crucial for ensuring its effectiveness. It should be installed according to the manufacturer’s guidelines to ensure a correct fit within the engine system. The gasket is compatible with various Cummins engine models, designed to fit precisely within the specified engine configurations. Careful attention to fitment and torque specifications during installation will ensure optimal performance and longevity of the gasket ⁴.

Maintenance and Troubleshooting

Routine maintenance practices can help ensure the longevity of the Accessory Drive Support Gasket. Regular inspections for signs of wear, damage, or leaks are recommended. If any issues are detected, such as leaks or gasket failure, prompt replacement is advised to prevent further damage to the engine or accessory drive system. Troubleshooting common issues may involve checking for proper installation, ensuring that all mating surfaces are clean and free of debris, and verifying that the gasket is the correct size and type for the application ¹.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for manufacturing high-quality components that are trusted by professionals in the automotive industry. The company is committed to innovation, quality, and customer satisfaction, providing reliable and durable parts for heavy-duty trucks and other applications. Cummins’ dedication to excellence is reflected in its wide range of products, including the Accessory Drive Support Gasket, which is designed to meet the demanding requirements of heavy-duty engines ².

Accessory Drive Support Gasket (Part 139867) in Cummins Engines

The Accessory Drive Support Gasket, identified by part number 139867 and manufactured by Cummins, is a critical component in ensuring the proper functioning of various engine systems. This gasket is designed to fit seamlessly with the V28 engine, providing a reliable seal between the accessory drive support and the engine block. Its primary role is to prevent leaks and maintain the integrity of the engine’s accessory drive system.

In the V28 engine, the Accessory Drive Support Gasket is strategically placed to support the mounting of various engine accessories, such as the alternator, power steering pump, and air conditioning compressor. By creating a secure and leak-proof connection, this gasket ensures that these components operate efficiently without any interference from external contaminants or pressure fluctuations.

The design of the Accessory Drive Support Gasket is tailored to the specific dimensions and requirements of the V28 engine. It is crafted from high-quality materials that can withstand the extreme conditions within the engine compartment, including high temperatures and pressures. This durability ensures that the gasket maintains its sealing properties over the engine’s operational life, contributing to the overall reliability and performance of the V28 engine ³.

Role of Accessory Drive Support Gasket in Engine Systems

The Accessory Drive Support Gasket, part number 139867, is an essential component in ensuring the efficient operation and longevity of various engine systems. This gasket is specifically designed to provide a secure and leak-proof seal between the accessory drive and its mounting points.

Integration with Accessory Drive and Coupling

The Accessory Drive Support Gasket is positioned between the Accessory Drive and its Coupling. This placement ensures that there is no undue stress on the drive components, allowing for smooth operation and reducing the risk of wear and tear. The gasket absorbs vibrations and minimizes movement, which is vital for the consistent performance of the accessory drive ⁴.

Fuel Pump and F.P. Support Mounting

In systems where the Fuel Pump is driven by the Accessory Drive, the Accessory Drive Support Gasket plays a significant role. It ensures that the F.P. Support Mounting remains stable and securely attached. This stability is important for the precise delivery of fuel, as any misalignment or instability could lead to inefficient fuel pump operation ¹.

Lower Engine Gasket Kit and Set

When considering the Lower Engine Gasket Kit or Lower Engine Gasket Set, the Accessory Drive Support Gasket is a complementary component. It helps in maintaining the integrity of the lower engine assembly by ensuring that all driven accessories are properly sealed and supported. This contributes to the overall efficiency and reliability of the engine ².

PDC and Kit Spares

In engines equipped with a Power Distribution Center (PDC), the Accessory Drive Support Gasket ensures that the PDC components are adequately supported and sealed. Additionally, when using a Kit Spares, including this gasket in the replacement process is important for maintaining the structural and operational integrity of the engine’s accessory drive system ³.

Comprehensive Engine Maintenance

Incorporating the Accessory Drive Support Gasket into regular maintenance routines, especially when replacing or repairing the Accessory, Fuel Pump, or other driven components, is beneficial. It ensures that all parts work in unison, leading to enhanced engine performance and durability ⁴.

Conclusion

The Accessory Drive Support Gasket, part number 139867, is a critical component in the maintenance and operation of heavy-duty engines. Its role in providing a secure seal between the accessory drive and the engine block ensures the efficient operation of various engine systems. By preventing leaks and maintaining the integrity of the accessory drive system, this Cummins part contributes to the overall reliability and performance of the engine. Regular maintenance and proper installation are essential to maximize the benefits of this gasket, ensuring long-term durability and reduced maintenance costs.