4896897
Accessory Drive Cover Gasket
Cummins®

Introduction

The Accessory Drive Cover Gasket, identified by part number 4896897, is a component manufactured by Cummins. This gasket is utilized in the accessory drive systems of commercial trucks. The following provides an in-depth look at the function, features, and maintenance of this Cummins part.

Function and Operation

The Accessory Drive Cover Gasket serves to seal the accessory drive cover to the engine block. This sealing prevents coolant and oil leaks, ensuring that these fluids remain within their designated systems ¹. The gasket is positioned between the accessory drive cover and the engine, creating a barrier that maintains the integrity of the engine’s lubrication and cooling systems.

Role in Truck Operation

In the operation of a truck, the Accessory Drive Cover Gasket plays a role by ensuring that the accessory drive components, such as the alternator, power steering pump, and air conditioning compressor, are properly sealed. This sealing is important for the efficient operation of these components, as it prevents fluid contamination and maintains the pressure within the system ².

Key Features

The Accessory Drive Cover Gasket by Cummins is designed with specific features to enhance its performance and durability. These features include precise manufacturing tolerances to ensure a proper fit, resistance to high temperatures and pressures, and compatibility with various engine coolants and oils. The gasket is also made from materials that provide long-lasting sealing capabilities.

Benefits

The use of a high-quality Accessory Drive Cover Gasket offers several benefits. It contributes to the prevention of coolant and oil leaks, which can lead to engine damage if not addressed. Additionally, a properly sealed accessory drive system ensures that the truck’s accessories operate efficiently, which can enhance the overall performance and reliability of the vehicle.

Troubleshooting and Maintenance

When troubleshooting issues related to the accessory drive system, it is important to inspect the Accessory Drive Cover Gasket for signs of wear, damage, or leaks. Regular maintenance checks can help identify potential problems before they lead to more significant issues. If a leak is detected, the gasket should be replaced to prevent further damage to the engine or accessory components.

Compatibility with Cummins Engines

The Accessory Drive Cover Gasket, part number 4896897, is designed to fit a variety of Cummins engines. This gasket is essential for ensuring a proper seal between the accessory drive cover and the engine block, preventing leaks and maintaining engine efficiency. Below is a detailed description of the engines with which this gasket is compatible.

B-Series Engines

• B4.5 RGT
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

F-Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F4.5 CM2620 F141C

ISB/ISD Engines

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• ISD4.5 CM2220 D108

ISF Engines

• ISF3.8 CM2220 AN
• ISF3.8 CM2350 F109
• ISF4.5 CM2220 F123

ISBE Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

ISG Engine

• ISG12 CM2880 G107

This gasket is engineered to provide a reliable seal for these engines, ensuring that the accessory drive cover remains securely attached to the engine block. The compatibility across a range of engine models highlights the versatility and robustness of the part, making it a suitable choice for various applications within the Cummins engine family.

Integration with Engine Components

The Accessory Drive Cover Gasket, part number 4896897, is integral to maintaining the integrity and efficiency of various engine systems. This gasket is specifically designed to seal the accessory drive cover, which houses several critical components and systems.

1. Air Compressor: The gasket ensures a secure seal around the accessory drive cover, preventing any air leaks that could affect the performance of the air compressor. A proper seal is necessary to maintain the compressor’s efficiency and the overall air supply system within the engine.

2. Auxiliary Pump and Auxiliary Pump Drive: These components rely on a sealed environment to operate effectively. The Accessory Drive Cover Gasket provides this seal, ensuring that the auxiliary pump and its drive mechanism function without interference from external elements.

3. Auxiliary Pump Mounting: The gasket plays a role in securing the mounting of the auxiliary pump by providing a stable and leak-free interface between the pump and the accessory drive cover.

4. Cylinder Block Plumbing: Proper sealing is vital for the cylinder block’s plumbing system. The gasket helps maintain the integrity of the fluid pathways, ensuring that there are no leaks that could disrupt the engine’s lubrication or cooling systems.

5. Hydraulic Pump Adapter: The hydraulic pump adapter often connects to the accessory drive system. The gasket ensures that this connection remains sealed, which is essential for the hydraulic system’s performance and reliability.

6. Lower and Upper Engine Gasket Kits: These kits include various gaskets that work in conjunction with the Accessory Drive Cover Gasket to ensure comprehensive sealing throughout the engine. The lower and upper engine gasket sets contribute to the overall sealing strategy, with the Accessory Drive Cover Gasket playing a specific role in the accessory drive area.

7. Overhaul Kit: During an engine overhaul, the Accessory Drive Cover Gasket is a component that must be inspected and replaced if necessary. Its condition directly impacts the success and longevity of the overhaul process.

8. Raw Water Pump: The raw water pump, often part of the cooling system, benefits from the sealed environment provided by the gasket. This ensures that the cooling system operates efficiently without any water leaks.

9. Rear Gear Train Accessory Drive and Mounting: These components are integral to the engine’s accessory drive system. The gasket ensures that the rear gear train and its mounting are securely sealed, contributing to the smooth operation of the accessory drive system.

Conclusion

In summary, the Accessory Drive Cover Gasket (part 4896897) is a key component in maintaining the sealed and efficient operation of various engine systems. Its role in sealing the accessory drive cover impacts the performance and reliability of interconnected components, making it an essential part of the engine’s overall design.