4939585
Lubricating Oil Pump
Cummins®

Introduction

The Cummins 4939585 Lubricating Oil Pump is a critical component designed to facilitate the circulation of lubricating oil within the engine system of heavy-duty trucks. Its role is significant in ensuring the smooth operation and longevity of the engine by providing consistent lubrication to moving parts ¹.

Basic Concepts of Lubricating Oil Pumps

Lubricating oil pumps are integral to maintaining engine health and performance. They work by drawing oil from the sump and distributing it throughout the engine to reduce friction between moving parts, cool the engine, and remove contaminants ². Proper lubrication is vital for minimizing wear and tear, enhancing engine efficiency, and prolonging engine life.

Function and Operation

The Cummins 4939585 Lubricating Oil Pump operates by utilizing a gear or rotor mechanism to draw oil from the sump and circulate it through the engine. As the engine runs, the pump ensures a continuous flow of oil to critical components such as bearings, pistons, and camshafts. This circulation helps in reducing friction, dissipating heat, and carrying away debris, thus maintaining optimal engine performance ³.

Purpose of the Cummins 4939585 Lubricating Oil Pump

In the operation of a truck, the Cummins 4939585 Lubricating Oil Pump plays a role by ensuring that all engine components receive adequate lubrication. This contributes to engine efficiency by minimizing friction and wear, and supports longevity by protecting parts from excessive heat and contamination.

Key Features

The Cummins 4939585 Lubricating Oil Pump is characterized by several design elements that enhance its performance and reliability. These include a robust construction to withstand high pressures, precision-machined components for efficient oil flow, and durable materials that resist wear and corrosion. These features collectively contribute to the pump’s effectiveness in demanding heavy-duty applications ⁴.

Benefits

The advantages provided by the Cummins 4939585 Lubricating Oil Pump include improved engine protection through consistent lubrication, reduced friction leading to lower operating temperatures, and enhanced overall performance of the engine. These benefits contribute to increased engine reliability and efficiency in heavy-duty truck operations.

Installation and Integration

When installing the Cummins 4939585 Lubricating Oil Pump, it is important to consider compatibility with the specific engine model and system requirements. Proper alignment and secure mounting are crucial for ensuring efficient operation and integration within the engine system. Following manufacturer guidelines for installation will help in achieving optimal performance and longevity of the pump.

Maintenance and Care

To ensure the Cummins 4939585 Lubricating Oil Pump operates at peak efficiency, regular maintenance is recommended. This includes periodic inspection for signs of wear or damage, cleaning to remove any contaminants, and adhering to scheduled replacement intervals for components such as filters and gaskets. Proper maintenance practices will help in sustaining the pump’s performance and reliability over time.

Troubleshooting Common Issues

Common problems associated with lubricating oil pumps may include insufficient oil pressure, leaks, or noisy operation. Addressing these issues may involve checking for blockages in the oil passages, inspecting seals and gaskets for wear, or ensuring the pump is properly aligned and mounted. Timely identification and resolution of these issues are important for maintaining engine health and performance.

Cummins: A Brief 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 diverse product range, Cummins is committed to providing reliable and efficient solutions for various industries, including automotive and heavy-duty trucking. The company’s focus on quality and performance is evident in its lineup of components, including the Cummins 4939585 Lubricating Oil Pump.

Cummins Lubricating Oil Pump 4939585 Compatibility

The Cummins lubricating oil pump part number 4939585 is designed to be compatible with a range of Cummins engines, ensuring efficient oil circulation and lubrication. Here is a detailed look at the engines with which this part is compatible:

Cummins 4B3.9

The 4B3.9 engine benefits from the 4939585 oil pump, which ensures that the engine’s internal components are adequately lubricated, maintaining performance and longevity.

Cummins B4.5

The B4.5 engine also utilizes the 4939585 oil pump. This part is engineered to handle the specific demands of the B4.5, providing reliable oil flow and pressure.

Cummins ISB3.9 CM2220 B107

The ISB3.9 CM2220 B107 engine is another model that is compatible with the 4939585 oil pump. This part ensures that the engine’s lubrication system operates smoothly, contributing to overall engine health.

Cummins QSB3.9 30 CM550

The QSB3.9 30 CM550 engine is designed to work seamlessly with the 4939585 oil pump. This compatibility ensures that the engine receives the necessary lubrication for optimal performance.

Cummins QSB3.9 CM2880 B138

The QSB3.9 CM2880 B138 engine is also compatible with the 4939585 oil pump. This part is crucial for maintaining the engine’s lubrication system, ensuring that all moving parts are properly lubricated.

These engines, while differing in specific applications and configurations, all share the need for a reliable lubricating oil pump to maintain their operational integrity. The Cummins 4939585 oil pump is designed to meet these needs, providing consistent and efficient oil flow across the specified engine models.

Role of Part 4939585 Lubricating Oil Pump in Engine Systems

The lubricating oil pump, identified by part number 4939585, is an integral component within the engine system, responsible for maintaining optimal lubrication across various engine components. Its primary function is to circulate lubricating oil throughout the engine, ensuring that moving parts operate smoothly and efficiently.

Interaction with Engine Components

1. Crankshaft and Connecting Rods: The pump delivers oil to the crankshaft and connecting rods, reducing friction and wear. This lubrication is essential for the smooth rotation of the crankshaft and the efficient transfer of power from the pistons.

2. Camshaft and Valve Train: Adequate lubrication is provided to the camshaft and valve train components. This ensures that the camshaft lobes and valve lifters operate without excessive wear, maintaining precise valve timing and engine performance.

3. Pistons and Cylinder Walls: The pump ensures that oil reaches the piston rings and cylinder walls, forming a protective film that minimizes friction and heat generation. This is vital for the longevity of the pistons and the integrity of the cylinder bores.

4. Bearings: Main and rod bearings benefit significantly from the consistent oil supply. The pump ensures that these bearings remain lubricated, which is essential for their durability and the overall stability of the engine’s rotating assembly.

5. Timing Chain or Belt: In engines equipped with timing chains or belts, the pump provides necessary lubrication to these components, ensuring they operate smoothly and maintain proper tension.

6. Oil Filter: The pump works in conjunction with the oil filter to circulate clean oil throughout the engine. This collaboration is essential for removing contaminants and maintaining oil quality.

Enhanced Engine Performance and Longevity

By ensuring that all these components receive a consistent supply of lubricating oil, part 4939585 plays a significant role in enhancing engine performance and longevity. Proper lubrication reduces wear, minimizes heat, and contributes to the overall efficiency and reliability of the engine system.

Conclusion

The Cummins 4939585 Lubricating Oil Pump is a vital component in the engine system of heavy-duty trucks, ensuring consistent lubrication to all moving parts. Its robust design, precise engineering, and compatibility with various Cummins engines make it an essential part for maintaining engine performance and longevity. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part.