4934085
O Ring Seal
Cummins®

The 4934085 O Ring Seal, manufactured by Cummins, is a component used in commercial trucks. Cummins is a well-established name in the commercial truck industry, known for its quality and innovative products. Seals play a significant role in maintaining the integrity of various systems within a vehicle, ensuring that fluids and gases remain contained within their designated pathways. The 4934085 O Ring Seal is designed to contribute to this objective in commercial truck applications.

Basic Concepts of O Ring Seals

An O Ring Seal is a type of gasket consisting of a ring with a circular cross-section. It is typically made from elastomers, which are materials that can return to their original shape after deformation. The basic structure of an O Ring Seal allows it to create a seal by being compressed between two surfaces. This compression causes the O Ring to deform and fill any irregularities between the surfaces, thereby preventing the passage of fluids or gases. Common materials for O Rings include nitrile rubber, silicone, and fluorocarbon, each offering different properties suitable for various applications ².

Purpose of the 4934085 O Ring Seal in Truck Operations

The 4934085 O Ring Seal is utilized in commercial trucks to ensure the integrity of specific systems or components. It is commonly associated with fluid systems where it helps maintain a seal, preventing leaks that could lead to system failure or contamination. By ensuring that fluids remain within their intended pathways, the O Ring Seal contributes to the efficient operation of the truck ³.

Key Features of the 4934085 O Ring Seal

The 4934085 O Ring Seal is designed with specific characteristics that make it suitable for its intended applications. These include resistance to certain fluids that it may come into contact with, as well as the ability to withstand a range of temperature and pressure conditions. The material and design of the seal are chosen to provide durability and reliability in the demanding environments typical of commercial truck operations ⁴.

Benefits of Using the 4934085 O Ring Seal

Utilizing the 4934085 O Ring Seal offers several advantages. It contributes to improved system reliability by ensuring that seals remain intact under various operating conditions. This can lead to reduced maintenance needs, as the likelihood of leaks or failures is minimized. Additionally, the seal enhances performance in demanding environments, supporting the overall efficiency and longevity of the truck’s systems ¹.

Installation Considerations

Proper installation of the 4934085 O Ring Seal is important to ensure optimal performance and longevity. Guidelines for installation may include ensuring the mating surfaces are clean and free of debris, using the correct amount of lubrication, and avoiding over-tightening, which could damage the seal. Special tools or procedures may be required to install the seal correctly, and these should be followed to maintain the integrity of the seal and the system it is part of ².

Troubleshooting Common Issues

Common problems associated with O Ring Seals include leaks or failure. These issues can often be traced back to improper installation, degradation of the seal material, or exposure to incompatible fluids or extreme conditions. Troubleshooting steps may involve inspecting the seal and mating surfaces for damage, ensuring the seal is the correct size and material for the application, and verifying that installation procedures were followed correctly ³.

Maintenance and Replacement

Regular maintenance of the 4934085 O Ring Seal may include periodic inspection to check for signs of wear or damage. Conditions that may necessitate replacement include visible damage to the seal, recurrent leaks in the system, or when the seal has reached the end of its service life as determined by the manufacturer’s guidelines. Proper maintenance and timely replacement can help ensure the continued reliability and performance of the truck’s systems ⁴.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a range of power solutions, including engines, related technologies, and complete power systems. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range includes engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial vehicle applications.

O Ring Seal 4934085 Compatibility with Cummins Engines

The O Ring Seal part number 4934085, manufactured by Cummins, is designed to fit a variety of Cummins engines. This seal is crucial for maintaining the integrity of various engine components by preventing leaks and ensuring a tight seal where needed. Below is a detailed description of the engines with which this O Ring Seal is compatible.

4B3.9, 6B5.9, 6C8.3, B3.9 G, B4.5, B5.9 CM2670 B166C, B5.9 G, B6.7 CM2350 B135B, B6.7 CM2670 B153B, B6.7 CM2670 B164C

These engines, which include both the 4B3.9 and 6B5.9 series, as well as the B3.9 G, B4.5, and B5.9 G models, are part of Cummins’ mid-range diesel engine lineup. The O Ring Seal 4934085 is compatible with these engines, ensuring that critical seals are maintained, which is essential for the proper functioning of the engine’s lubrication and cooling systems.

F3.8 CM2350 F128C, F4.5 CM2620 F141C

The F3.8 CM2350 F128C and F4.5 CM2620 F141C engines are part of Cummins’ smaller diesel engine series. The O Ring Seal 4934085 fits these engines, providing the necessary sealing for components such as fuel injectors, coolant passages, and other critical areas.

G5.9, G5.9 CM558

The G5.9 and G5.9 CM558 engines are part of Cummins’ larger diesel engine lineup. The O Ring Seal 4934085 is compatible with these engines, ensuring that the seals around the fuel injectors, oil passages, and other critical areas are maintained, preventing leaks and ensuring optimal engine performance.

ISB CM550, ISB CM850, ISB6.7 G CM2180 B118

The ISB series engines, including the ISB CM550, ISB CM850, and ISB6.7 G CM2180 B118, are part of Cummins’ industrial and agricultural engine lineup. The O Ring Seal 4934085 fits these engines, providing the necessary sealing for components such as the fuel injectors, oil passages, and other critical areas.

QSB3.9 30 CM550, QSB3.9 CM2880 B138, QSB4.5 CM2250 EC, QSB4.5 CM850 (CM2850), QSB5.9 30 CM550, QSB5.9 44 CM550, QSB5.9 CM2880 B139, QSB5.9G

The QSB series engines, including the QSB3.9 30 CM550, QSB3.9 CM2880 B138, QSB4.5 CM2250 EC, QSB4.5 CM850 (CM2850), QSB5.9 30 CM550, QSB5.9 44 CM550, QSB5.9 CM2880 B139, and QSB5.9G, are part of Cummins’ small to mid-range diesel engine lineup. The O Ring Seal 4934085 is compatible with these engines, ensuring that the seals around the fuel injectors, oil passages, and other critical areas are maintained, preventing leaks and ensuring optimal engine performance.

Role of Part 4934085 O Ring Seal in Engine Systems

The O Ring Seal, part number 4934085, is an essential component in ensuring the integrity and efficiency of various engine systems. Its primary function is to create a reliable seal, preventing leaks and maintaining pressure within the system.

Cylinder Block Cover

In the cylinder block cover, the O Ring Seal is positioned to seal the interface between the cover and the cylinder block. This seal is vital for maintaining the structural integrity of the engine by preventing coolant or oil leaks, which could lead to engine overheating or contamination.

Lower Engine Gasket Kit

When integrated into a lower engine gasket kit, the O Ring Seal complements other gaskets to ensure a comprehensive seal across multiple engine components. It specifically targets areas where standard gasket materials may not provide sufficient sealing, such as around irregular surfaces or high-pressure zones.

Oil Fill Arrangement

In the oil fill arrangement, the O Ring Seal is used to secure the connection between the oil fill cap and the engine block. This ensures that no oil escapes during operation, maintaining the proper oil level and pressure necessary for lubrication and cooling of engine components.

Oil Filler Tube

The O Ring Seal also plays a significant role in the oil filler tube assembly. It seals the connection points within the tube, preventing oil from seeping out and ensuring that the oil filler cap remains securely attached. This is important for maintaining the cleanliness of the engine bay and ensuring that the oil filler cap can be easily removed and reattached during maintenance procedures.

Overall, the O Ring Seal, part number 4934085, is a versatile component that enhances the reliability and performance of engine systems by providing essential seals in various critical applications.

Conclusion

The 4934085 O Ring Seal is a critical component in the maintenance and operation of commercial trucks, particularly those equipped with Cummins engines. Its role in preventing leaks and maintaining system integrity is essential for the efficient and reliable performance of these vehicles. Proper installation, regular maintenance, and timely replacement of this part are key to ensuring the longevity and performance of the truck’s systems.