4939246
Oil Pan Gasket
Cummins®

The Cummins 4939246 Oil Pan Gasket is a component designed for use in heavy-duty truck engines. Its purpose is to create a seal between the oil pan and the engine block, ensuring that engine oil remains contained within the sump. This gasket plays a role in maintaining the integrity of the lubrication system, which is important for the engine’s operation and longevity.

Basic Concepts of Oil Pan Gaskets

An oil pan gasket is a sealing component positioned between the oil pan and the engine block. Its function is to prevent oil leakage from the oil sump, which houses the engine’s lubricant. The gasket must withstand high temperatures, pressure fluctuations, and contact with oil, making material selection crucial. Common materials for oil pan gaskets include rubber, cork, and multi-layer steel, each offering different properties in terms of flexibility, heat resistance, and sealing capability ¹.

Purpose of the Cummins 4939246 Oil Pan Gasket

The Cummins 4939246 Oil Pan Gasket is engineered to maintain the seal integrity of the oil sump in truck engines. By preventing oil leaks, it ensures that the lubrication system functions correctly, which is important for reducing friction and wear on engine components. This gasket is designed to handle the specific demands of heavy-duty applications, providing a reliable barrier against oil escape ².

Key Features

The Cummins 4939246 Oil Pan Gasket features a design that enhances its performance and durability. It is constructed from materials that offer superior resistance to oil, heat, and pressure. The gasket may include unique characteristics such as multi-layer construction or specific shaping to accommodate the contours of the engine block and oil pan, ensuring a snug fit and effective seal ³.

Benefits

Using the Cummins 4939246 Oil Pan Gasket can lead to improved engine performance due to its reliable sealing properties. The gasket’s durability contributes to the overall efficiency and longevity of the truck engine by maintaining consistent oil levels and preventing contamination from external substances. Its design is aimed at providing a secure seal that withstands the rigors of heavy-duty use ⁴.

Installation Process

Proper installation of the Cummins 4939246 Oil Pan Gasket involves several steps to ensure a secure and effective seal. The process includes cleaning the mating surfaces, inspecting the gasket for damage, and positioning it correctly between the oil pan and engine block. It is important to follow manufacturer guidelines for torque specifications when tightening the oil pan bolts to avoid over-tightening, which can damage the gasket, or under-tightening, which can lead to leaks.

Troubleshooting and Maintenance

Common issues with oil pan gaskets include leaks, which can be identified by oil stains beneath the vehicle or low oil levels. Troubleshooting may involve inspecting the gasket for wear or damage and ensuring that the oil pan is properly aligned and tightened. Regular maintenance, such as checking for signs of wear and ensuring the gasket remains in good condition, can help prolong its life and ensure optimal performance.

Cummins Overview

Cummins Inc. is a well-established company in the automotive industry, known for its quality and innovation in manufacturing engine components. With a history of producing reliable and high-performance parts, Cummins is committed to advancing engine technology and providing solutions that meet the demands of various applications, including heavy-duty trucking.

Cummins Oil Pan Gasket 4939246 Compatibility

The Cummins Oil Pan Gasket part number 4939246 is designed to fit a variety of Cummins engines, ensuring a proper seal between the oil pan and the engine block. Here is a detailed overview of its compatibility:

• B4.5 RGT: This gasket is engineered to fit seamlessly with the B4.5 RGT engine, providing an effective seal to prevent oil leaks.

• ISB/ISD4.5 CM2150 B119: The 4939246 gasket is compatible with the ISB/ISD4.5 CM2150 B119 engine, ensuring a secure fit that maintains the integrity of the oil system.

• ISBE CM800 and ISBE4 CM850: These engines benefit from the precise fit of the 4939246 gasket, which is designed to align perfectly with the contours of the oil pan and engine block.

• ISD4.5 CM2220 D108: The gasket is also suitable for the ISD4.5 CM2220 D108 engine, providing a reliable seal that helps maintain optimal engine performance.

• QSB4.5 CM2250 EC and QSB4.5 CM850 (CM2850): The 4939246 gasket is compatible with both the QSB4.5 CM2250 EC and QSB4.5 CM850 (CM2850) engines, ensuring a consistent and effective seal across these models.

Each of these engines relies on the 4939246 gasket to maintain the oil system’s integrity, preventing leaks and ensuring the engine operates efficiently.

Role of Part 4939246 Oil Pan Gasket in Engine Systems

The part 4939246 Oil Pan Gasket is an essential component in ensuring the integrity and functionality of various engine systems. Its primary role is to create a seal between the oil pan and the cylinder block, preventing oil leaks and maintaining the proper lubrication levels within the engine.

Integration with the Cylinder Block

When the cylinder block is assembled, the oil pan gasket is positioned between the block and the oil pan. This seal is vital for containing engine oil within the pan, ensuring that it does not seep into other engine compartments or the environment. The gasket’s precise fit and material properties are designed to withstand the pressures and temperatures generated during engine operation.

Role in the Gasket Kit and Lower Engine Gasket Kit

In a gasket kit or a lower engine gasket kit, the oil pan gasket is one of several gaskets designed to seal different engine components. These kits often include gaskets for the cylinder head, valve cover, and other critical areas. The oil pan gasket complements these by ensuring that the lower portion of the engine remains sealed, contributing to the overall effectiveness of the gasket kit in maintaining engine performance and longevity.

Function in the Long Block Assembly

In a long block assembly, which includes the cylinder block, crankshaft, pistons, and other lower engine components, the oil pan gasket plays a significant role. It ensures that the oil pan, which is typically attached after the long block is assembled, forms a secure seal with the block. This is important for maintaining oil pressure and ensuring that the lubrication system functions correctly throughout the engine’s operation.

Interaction with the Oil Pan

The oil pan itself is designed to hold the engine’s lubricant, which is essential for reducing friction between moving parts. The oil pan gasket ensures that this reservoir remains intact, preventing oil loss and contamination. Its placement and sealing capability are designed to endure the vibrations and thermal cycles that the oil pan experiences during engine runtime.

Ensuring Proper Lubrication

By maintaining a secure seal, the oil pan gasket helps ensure that the engine’s lubrication system operates efficiently. Proper lubrication is essential for reducing wear on engine components, enhancing performance, and extending the engine’s lifespan. The gasket’s role in this system underscores its importance in the overall health and functionality of the engine.

Conclusion

The Cummins 4939246 Oil Pan Gasket is a critical component in the maintenance and efficiency of heavy-duty truck engines. Its design and material properties ensure a reliable seal between the oil pan and the engine block, which is essential for maintaining the integrity of the lubrication system. Proper installation, regular maintenance, and understanding its role within the engine system are key to maximizing the performance and longevity of the engine.