4954487
O Ring Seal
Cummins®

The Cummins 4954487 O Ring Seal is a critical component designed to maintain the integrity of seals within commercial truck engines and other mechanical systems. Its role is significant in maintaining the efficiency and reliability of truck operations, particularly in environments where durability and performance are paramount.

Basic Concepts of O Ring Seals

An O Ring Seal is a toroidal (ring-shaped) elastomer with a circular cross-section, used to create a seal between two or more parts. It operates by being compressed within a groove, forming a barrier that prevents the leakage of fluids or gases. O Ring Seals are commonly made from materials such as nitrile rubber, silicone, or fluorocarbon elastomers, each offering distinct properties like resistance to oils, fuels, and varying temperatures ¹.

Purpose of the Cummins 4954487 O Ring Seal

The Cummins 4954487 O Ring Seal is specifically engineered to seal connections within a truck’s engine or other mechanical systems. It plays a role in preventing leaks of fluids or gases, which could otherwise lead to inefficiencies or damage. This seal is integral to maintaining the operational integrity of the systems it is part of, ensuring that the truck operates smoothly and reliably ².

Key Features

The Cummins 4954487 O Ring Seal is characterized by its precise design and material composition, which are tailored to meet the demanding conditions of commercial truck engines. Its material is chosen for its durability and resistance to the specific fluids and temperatures encountered in truck operations. Additionally, the seal’s design ensures a snug fit within its designated groove, enhancing its effectiveness in creating a reliable seal ³.

Benefits

Utilizing the Cummins 4954487 O Ring Seal offers several advantages, including enhanced sealing efficiency and longevity. Its resistance to wear and environmental conditions contributes to the overall reliability of the truck’s engine and mechanical systems. By preventing leaks, it helps maintain system performance and reduces the need for frequent maintenance, thereby supporting the truck’s operational efficiency.

Installation Considerations

When installing the Cummins 4954487 O Ring Seal, it is important to prepare the sealing surface to ensure it is clean and free of debris. Handling the O Ring with care to avoid damage is crucial for its proper function. Ensuring the O Ring is correctly fitted within its groove is also important to achieve an effective seal and prevent leaks.

Troubleshooting and Maintenance

Common issues with O Ring Seals, such as leaks or failure, can often be traced back to improper installation, damage during handling, or degradation over time. Routine checks and maintenance, including inspecting the seal for signs of wear or damage, are recommended to ensure its continued effectiveness. Replacement may be necessary if the seal shows signs of failure or if leaks are detected.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins plays a significant role in the commercial truck industry, providing reliable and efficient engine and component solutions that meet the needs of its customers worldwide.

Cummins Engine O Ring Seal 4954487 Compatibility

The Cummins O Ring Seal part number 4954487 is a crucial component designed to ensure a tight seal in various engine systems. This seal is compatible with a wide range of Cummins engines, providing a reliable barrier against leaks and ensuring optimal engine performance. Below is a detailed overview of the engines with which this O Ring Seal is compatible.

Compatible Engines

• 15N CM2380 M104B
• B4.5 CM2350 B129B
• B5.6 CM2670 B152B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• D4.0 CM2620 D103B
• F2.8 CM2620 F135B
• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C
• ISB (Chrysler)
• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB3.9 CM2220 B107
• ISB4.5 CM2350 B104
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B127
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149

Grouped Compatibility

Group 1: B Series Engines

• B4.5 CM2350 B129B
• B5.6 CM2670 B152B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C

Group 2: F Series Engines

• F2.8 CM2620 F135B
• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

Group 3: D Series Engines

• D4.0 CM2620 D103B

Group 4: ISB Series Engines

• ISB (Chrysler)
• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB3.9 CM2220 B107
• ISB4.5 CM2350 B104
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B127
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149

This O Ring Seal is engineered to fit seamlessly into the specified engine models, ensuring that the seal’s integrity is maintained throughout the engine’s operational life. Proper installation of this seal is essential for preventing leaks and maintaining the engine’s efficiency.

Role of Part 4954487 O Ring Seal in Engine Systems

Part 4954487 O Ring Seal is integral to maintaining the integrity and efficiency of various engine systems. Its application spans across multiple components, ensuring optimal performance and longevity.

Camshaft and Cylinder Head

In the camshaft and cylinder head assembly, the O Ring Seal prevents oil leakage, which is essential for maintaining proper lubrication and reducing wear on moving parts. This seal ensures that the oil pressure remains consistent, contributing to the smooth operation of the valve train.

Connecting Rod and Piston

Within the connecting rod and piston system, the O Ring Seal is used to secure the rod bearings. This application is vital for maintaining the precise alignment and movement of the piston, which directly impacts the engine’s power output and fuel efficiency.

Crankcase Breather and Lubricating Oil Pump

The crankcase breather system relies on the O Ring Seal to prevent contaminants from entering the crankcase while allowing pressure to equalize. Similarly, in the lubricating oil pump, the seal ensures that oil is efficiently circulated throughout the engine, reducing friction and wear on critical components.

Fuel Manifold and Injector Systems

In the fuel manifold and various injector systems, including the injector fuel supply connector and injector plumbing, the O Ring Seal plays a key role in maintaining fuel integrity. It prevents fuel leaks, ensuring that the correct fuel-air mixture is delivered to the combustion chamber, which is essential for engine performance and emissions control.

Gear Housing and Front Crankshaft Seal Kit

The gear housing and front crankshaft seal kit utilize the O Ring Seal to maintain the integrity of the gear system and crankshaft. This application is important for preventing oil leaks and ensuring that the gears operate smoothly, which is critical for the overall mechanical efficiency of the engine.

Electronic Interface Module and Engine Control Module

In the electronic interface module and engine control module, the O Ring Seal is used to protect sensitive electronic components from moisture and contaminants. This application ensures that the engine’s electronic systems operate reliably, contributing to overall engine management and performance.

Flanged O Ring Plug and O Ring Plug

The flanged O Ring Plug and standard O Ring Plug applications are designed to seal various ports and passages within the engine. These seals are essential for maintaining system pressures and preventing fluid leaks, which is important for the engine’s operational integrity.

Lower Engine Gasket Kit and Long Block Components

In the lower engine gasket kit and long block components, the O Ring Seal is used to ensure a tight seal between mating surfaces. This application is vital for maintaining combustion chamber integrity and preventing oil and coolant leaks, which are essential for engine reliability and performance.

Traction Motor and XPI JV System Cummins MR

For the traction motor and XPI JV System Cummins MR, the O Ring Seal is used to maintain the seals in high-pressure fuel systems and electrical connections. This ensures that the systems operate efficiently and reliably, which is critical for the performance of hybrid and diesel engines.

Overall, the versatile application of Part 4954487 O Ring Seal across these engine components underscores its importance in ensuring the engine’s efficiency, reliability, and longevity.

Conclusion

The Cummins 4954487 O Ring Seal plays a vital role in maintaining the integrity and efficiency of commercial truck engines and other mechanical systems. Its precise design, durable material composition, and wide compatibility with various Cummins engines make it an essential component for ensuring optimal engine performance and reliability. Proper installation and maintenance of this seal are crucial for preventing leaks and maintaining the engine’s efficiency, contributing to the overall operational integrity of the truck.