4010851
Oil Restrictor
Cummins®

The Cummins 4010851 Oil Restrictor is a component designed to regulate the flow of oil within the lubrication system of heavy-duty trucks. Its role is significant in ensuring that the engine operates efficiently and maintains optimal performance. By controlling the oil flow, this restrictor helps in maintaining the necessary pressure levels within the lubrication system, which is vital for the proper functioning of the engine’s moving parts ².

Basic Concepts of Oil Restrictors

An oil restrictor is a device used in an engine’s lubrication system to control the rate at which oil flows through specific passages. It operates on the principle of restricting the flow to maintain a consistent pressure and ensure that oil is distributed evenly throughout the engine. This regulation is crucial for protecting engine components from wear and ensuring smooth operation ¹.

Purpose of the Cummins 4010851 Oil Restrictor

The Cummins 4010851 Oil Restrictor plays a role in the lubrication system by regulating the flow of oil to various engine components. It ensures that oil is delivered at the correct pressure and volume, which is necessary for the efficient lubrication of bearings, pistons, and other moving parts. This regulation helps in reducing friction and wear, thereby contributing to the overall performance and longevity of the engine ².

Key Features

The Cummins 4010851 Oil Restrictor is characterized by its precise design and the materials used in its construction. It is engineered to withstand the high pressures and temperatures encountered within an engine. The restrictor is made from durable materials that ensure it can maintain its integrity and performance over time. Additionally, its design allows for easy installation and integration into the engine’s lubrication system ².

Benefits of Using the Cummins 4010851 Oil Restrictor

Incorporating the Cummins 4010851 Oil Restrictor into a truck’s engine lubrication system offers several advantages. It contributes to improved engine performance by ensuring that all components receive the necessary lubrication. This can lead to enhanced efficiency and reduced wear on engine parts. Furthermore, by maintaining optimal oil pressure, the restrictor can help in extending the engine’s lifespan, potentially leading to cost savings over time ².

Installation and Compatibility

Proper installation of the Cummins 4010851 Oil Restrictor is important for ensuring its effective operation within the engine’s lubrication system. It is designed to be compatible with a range of truck models and engine types, though specific installation guidelines should be followed to ensure compatibility and optimal performance. Attention to detail during installation can prevent issues and ensure the restrictor functions as intended ².

Maintenance and Troubleshooting

Routine maintenance of the Cummins 4010851 Oil Restrictor is important for its continued efficient operation. This includes regular checks for signs of wear or damage and ensuring that it remains clean and free from contaminants. Troubleshooting common issues, such as inconsistent oil pressure or flow, may involve inspecting the restrictor for blockages or damage and addressing these issues promptly to maintain engine performance ².

Cummins: A Brief Overview

Cummins Inc. is a well-established manufacturer in the automotive and heavy-duty truck industry, known for its wide range of engine and component offerings. The company has a history of innovation and quality, providing solutions that meet the demanding requirements of heavy-duty applications. Cummins’ reputation is built on its commitment to excellence, reliability, and performance, making its products, including the 4010851 Oil Restrictor, a preferred choice for many in the industry ².

Cummins Oil Restrictor Part 4010851 Compatibility

The Cummins Oil Restrictor part number 4010851 is designed to fit seamlessly with a range of engine models, ensuring optimal performance and longevity. This part is integral to maintaining the correct oil flow and pressure within the engine, which is crucial for the engine’s overall health and efficiency ².

Engine Compatibility

• QSV81G and QSV91G

  The Oil Restrictor 4010851 is compatible with the QSV81G and QSV91G engines. These engines benefit from the precise control of oil flow that this restrictor provides, ensuring that the lubrication system operates within the manufacturer’s specifications ².

• QSW/QSV82

  The part also fits the QSW/QSV82 engines. Given the similar design and operational parameters of these engines, the 4010851 Oil Restrictor is engineered to maintain the required oil pressure and flow, contributing to the engine’s reliability and performance ².

• QSW73

  The QSW73 engine is another model that is compatible with the Cummins Oil Restrictor 4010851. This part ensures that the oil flow is regulated correctly, which is essential for the engine’s longevity and efficiency ².

Each of these engines, while distinct in their specific applications and performance characteristics, shares a common need for precise oil flow regulation. The Cummins Oil Restrictor 4010851 is designed to meet this need, ensuring that the lubrication system functions as intended across all compatible engines ².

Role of Part 4010851 Oil Restrictor in Engine Systems

The 4010851 Oil Restrictor is an essential component in the lubrication system of various engine setups. It is strategically placed to regulate the flow of oil to different parts of the engine, ensuring optimal lubrication and performance ².

Integration with Engine Components

• Connection: The Oil Restrictor is integrated into the oil passage connections within the engine. It controls the oil flow to critical areas, preventing over-lubrication and ensuring that each component receives the necessary amount of oil for smooth operation ².

• Water Inlet: In engines where cooling systems are closely tied with lubrication systems, the Oil Restrictor helps maintain the correct oil pressure. This is particularly important at the water inlet where temperature regulation can affect oil viscosity and flow ².

• Drive and Accessory Drive: These components rely on consistent oil supply for reduced friction and wear. The Oil Restrictor ensures that oil is delivered efficiently to these drives, enhancing their durability and performance ².

• Front Gear Train Accessory: The front gear train requires precise lubrication to function correctly. The Oil Restrictor plays a key role in delivering the right amount of oil to this accessory, thus supporting its operational efficiency ².

• Gear Assembly Housing and Gear Equipped Housing: These housings enclose moving parts that demand steady lubrication. The Oil Restrictor ensures a regulated oil flow, which is vital for the longevity and reliability of these components ².

• Water Outlet Connection: Similar to the water inlet, the outlet connection benefits from stable oil pressure maintained by the Oil Restrictor. This stability is essential for the overall thermal management of the engine ².

• Water Transfer Assembly Tube: In systems where oil and water pathways intersect, the Oil Restrictor ensures that oil flow is not compromised. This is important for maintaining the integrity of the lubrication system in the presence of cooling fluids ².

By carefully managing oil flow, the 4010851 Oil Restrictor contributes to the efficient operation and longevity of these engine components ².

Conclusion

The Cummins 4010851 Oil Restrictor is a critical component in the lubrication system of heavy-duty truck engines. Its precise design and durable construction ensure that it can withstand the demanding conditions within an engine, providing consistent oil flow and pressure. This contributes to improved engine performance, reduced wear on components, and extended engine lifespan. Proper installation, maintenance, and compatibility with a range of engine models make this part a valuable asset for ensuring the efficient and reliable operation of heavy-duty trucks ².