4983496
Lubricating Oil Pump
Cummins®

Introduction

The 4983496 Lubricating Oil Pump is a component manufactured by Cummins, a well-established name in the commercial truck industry. This pump is integral to the operation of commercial trucks, ensuring that the engine operates smoothly and efficiently. Cummins is renowned for its high-quality engine components, and the 4983496 Lubricating Oil Pump is no exception, playing a significant role in maintaining the engine’s performance and longevity ¹.

Basic Concepts of Lubricating Oil Pumps

A lubricating oil pump is a device that circulates oil throughout an engine to reduce friction and wear between moving parts. It operates by drawing oil from the sump and delivering it under pressure to various engine components, such as bearings, pistons, and camshafts. The primary function of the pump is to ensure that all parts receive adequate lubrication, which is vital for minimizing wear and maintaining efficient operation. Proper lubrication reduces heat generation and helps in dissipating contaminants away from critical engine components ².

Purpose of the 4983496 Lubricating Oil Pump

The 4983496 Lubricating Oil Pump is designed to circulate oil to various engine components in a truck. Its role is to ensure that all moving parts within the engine receive a consistent supply of lubricant. This consistent lubrication helps in reducing friction, which in turn minimizes wear and tear on the engine components. By maintaining optimal lubrication, the pump contributes to the overall efficiency and reliability of the engine ³.

Key Features

The 4983496 Lubricating Oil Pump features a robust design that is built to withstand the demanding conditions of commercial truck engines. It is constructed using high-quality materials that ensure durability and reliability. The pump incorporates advanced technological features that enhance its performance, such as precision-machined components and efficient flow management. These features contribute to its ability to deliver consistent and reliable lubrication under various operating conditions.

Benefits

Using the 4983496 Lubricating Oil Pump offers several benefits. It contributes to improved engine performance by ensuring that all components are properly lubricated. This consistent lubrication helps in reducing friction and wear, which can lead to enhanced engine longevity. Additionally, the pump’s reliable operation ensures that the engine maintains its efficiency over time, providing consistent performance and reducing the likelihood of unexpected downtime.

Installation and Integration

Proper installation of the 4983496 Lubricating Oil Pump is crucial for its effective operation. It should be integrated into the truck’s engine system according to the manufacturer’s guidelines. This includes ensuring that all connections are secure and that the pump is properly aligned within the engine compartment. Careful attention to these details during installation will help in achieving optimal performance and longevity from the pump.

Maintenance Practices

To ensure the 4983496 Lubricating Oil Pump operates at its best, regular maintenance is recommended. This includes periodic inspection of the pump for any signs of wear or damage, as well as ensuring that the oil levels and quality are maintained. Regular maintenance helps in identifying potential issues before they become significant problems, thereby contributing to the longevity and reliability of the pump.

Troubleshooting Common Issues

Common issues with the 4983496 Lubricating Oil Pump may include inadequate oil pressure, leaks, or unusual noises during operation. Troubleshooting these issues involves checking the pump’s connections, inspecting for wear or damage, and ensuring that the oil is clean and at the correct level. Addressing these issues promptly can help in maintaining the pump’s performance and preventing more serious problems.

Performance Monitoring

Monitoring the performance of the 4983496 Lubricating Oil Pump is important for identifying potential problems before they become critical. This can be done by regularly checking oil pressure readings, listening for unusual noises, and inspecting the pump for any signs of wear or damage. Early detection of issues allows for timely maintenance or repairs, ensuring continued reliable operation of the pump.

Cummins Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its high-quality engine components and systems. With a long history of innovation and excellence, Cummins has established a strong reputation for producing reliable and efficient products. The company’s commitment to quality and performance is evident in its wide range of engine components, including the 4983496 Lubricating Oil Pump.

Cummins Engine Compatibility with Lubricating Oil Pump Part 4983496

The Cummins Lubricating Oil Pump part number 4983496 is a critical component designed to ensure the smooth operation of various Cummins engines by maintaining proper oil flow. This part is engineered to fit seamlessly with a range of Cummins engines, providing reliable performance and durability. Below is a detailed overview of the engines compatible with this oil pump, grouped where applicable to highlight similarities and differences.

B6.7 Series Engines

The B6.7 series engines, known for their robust performance and reliability, include:

• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

These engines benefit from the precise oil distribution provided by the 4983496 oil pump, ensuring optimal lubrication and engine longevity.

ISB Series Engines

The ISB series engines, recognized for their versatility and efficiency, are compatible with the 4983496 oil pump in the following configurations:

• ISB (Chrysler)
• ISB CM2150
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

These engines, whether used in Chrysler applications or standalone configurations, rely on the 4983496 oil pump to maintain consistent oil pressure and flow, crucial for their performance and durability.

ISBE Series Engines

The ISBE series engines, designed for heavy-duty applications, include:

• ISBE CM2150
• ISBE4 CM850

The 4983496 oil pump is engineered to meet the demands of these heavy-duty engines, ensuring that oil is distributed efficiently under high-stress conditions.

QSB Series Engines

The QSB series engines, known for their reliability in a variety of applications, are compatible with the 4983496 oil pump in the following configurations:

• QSB4.5 CM850 (CM2850)
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB6.7 M CM2250
• QSB7 CM2880 B117

These engines, whether used in agricultural, industrial, or construction applications, benefit from the precise oil distribution provided by the 4983496 oil pump, ensuring optimal performance and longevity.

Role of Part 4983496 Lubricating Oil Pump in Engine Systems

The lubricating oil pump, identified by part number 4983496, is integral to the efficient operation of various engine systems. Its primary function is to circulate lubricating oil throughout the engine, ensuring that all moving parts are adequately coated to minimize friction and wear.

Integration with Engine Components

1. Crankshaft and Connecting Rods: The pump delivers oil to the crankshaft and connecting rods, which are subject to high rotational speeds and loads. Proper lubrication here is essential for reducing friction and preventing metal-to-metal contact that could lead to premature wear.

2. Camshaft and Valve Train: In overhead cam engines, the lubricating oil pump ensures that the camshaft and valve train components receive a consistent supply of oil. This lubrication is vital for the smooth operation of the valves, which open and close thousands of times per minute.

3. Pistons and Cylinder Walls: The pump facilitates the distribution of oil to the piston rings and cylinder walls. This lubrication helps maintain a seal between the piston and cylinder, reducing blow-by and enhancing engine efficiency.

4. Bearings: Main and rod bearings rely on a steady flow of oil to create a hydrodynamic layer that supports the rotating parts of the engine. The lubricating oil pump ensures these bearings remain well-lubricated, which is key to their longevity and performance.

5. Timing Chain or Belt: In engines equipped with a timing chain or belt, the lubricating oil pump provides necessary lubrication to these components. This helps in reducing friction and wear, ensuring precise timing of the engine’s valve events.

6. Oil Filter: The pump pushes oil through the filter, which removes contaminants from the lubricant. Clean oil is essential for maintaining the integrity of all lubricated components within the engine.

7. Oil Cooler: In systems with an oil cooler, the pump sends oil through the cooler to maintain optimal operating temperatures. This is particularly important in high-performance or high-stress applications where oil temperatures can rise significantly.

8. Turbocharger (if equipped): In turbocharged engines, the lubricating oil pump also supplies oil to the turbocharger bearings and, in some cases, to the turbocharger itself for cooling purposes. This ensures the turbocharger operates smoothly and efficiently.

By effectively circulating oil throughout these critical engine components, part 4983496 Lubricating Oil Pump plays a significant role in maintaining engine health, performance, and longevity.

Conclusion

The 4983496 Lubricating Oil Pump by Cummins is a vital component in the operation of commercial truck engines. Its robust design, advanced features, and compatibility with a wide range of Cummins engines make it an essential part for ensuring engine efficiency, reliability, and longevity. Proper installation, regular maintenance, and timely troubleshooting are key to maximizing the performance and lifespan of this Cummins part.