3914006
Lubricating Oil Pump
Cummins®

The Cummins 3914006 Lubricating Oil Pump is a critical component in the engine systems of commercial trucks. Its purpose is to ensure the continuous circulation of lubricating oil throughout the engine, which is significant for maintaining engine health and performance. This pump plays a key role in the efficient operation of trucks by facilitating proper lubrication of engine components ¹.

Basic Concepts of Lubricating Oil Pumps

A lubricating oil pump is designed to draw oil from the sump and distribute it under pressure to various engine parts. Within an engine, the pump ensures that moving parts receive a consistent supply of oil, which reduces friction and wear. Proper lubrication is fundamental to the longevity and efficiency of engine components, as it minimizes heat generation and potential damage from metal-to-metal contact ².

Purpose of the Cummins 3914006 Lubricating Oil Pump

The Cummins 3914006 Lubricating Oil Pump is engineered to maintain adequate oil circulation and pressure within the engine. It ensures that oil reaches critical components such as bearings, pistons, and camshafts, which are essential for smooth engine operation. By providing consistent oil flow, the pump helps in cooling these parts and reducing the risk of overheating and mechanical failure ³.

Key Features

The Cummins 3914006 Lubricating Oil Pump is characterized by its robust design and the use of high-quality materials. These features contribute to its durability and efficiency. The pump is built to withstand the demanding conditions of commercial truck engines, ensuring reliable performance over time. Its design may include advanced features such as precision-machined components and enhanced sealing mechanisms to prevent oil leaks and maintain pressure integrity.

Benefits

The use of the Cummins 3914006 Lubricating Oil Pump offers several benefits. It contributes to improved engine performance by ensuring that all moving parts are properly lubricated. This reduces wear on engine components, leading to extended engine life. Additionally, the pump enhances the reliability of the engine system, providing consistent oil pressure and flow, which is crucial for the operation of commercial trucks under various load conditions.

Installation and Integration

Proper installation of the Cummins 3914006 Lubricating Oil Pump is crucial for its effective operation within a truck’s engine system. Installation guidelines typically include ensuring the pump is correctly aligned and securely fastened. It is also important to verify that all connections are tight and that the pump is compatible with the engine’s lubrication system. Preparations may involve cleaning the installation area and inspecting the pump for any damage prior to installation.

Troubleshooting and Maintenance

Common issues with the Cummins 3914006 Lubricating Oil Pump may include oil leaks, inconsistent oil pressure, or pump failure. Troubleshooting these issues often involves checking for loose connections, worn seals, or blockages in the oil passages. Regular maintenance practices, such as inspecting the pump for wear, ensuring proper oil levels, and using the recommended grade of lubricating oil, are important for maintaining optimal performance and longevity of the pump.

Performance and Efficiency

The performance and efficiency of the Cummins 3914006 Lubricating Oil Pump have a direct impact on fuel economy, engine longevity, and overall truck performance. By ensuring efficient oil circulation, the pump helps in reducing friction and wear, which can lead to improved fuel efficiency. Its reliable operation contributes to the longevity of the engine and the overall performance of the truck, making it a valuable component in the engine system.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a strong reputation in the industry, Cummins is committed to quality and innovation in diesel engine technology. The company’s products, including the Cummins 3914006 Lubricating Oil Pump, are designed to meet the demanding requirements of commercial applications, ensuring reliability and performance in various operating conditions ⁴.

Compatibility

The Cummins lubricating oil pump part number 3914006 is designed to be compatible with a range of engine models, ensuring efficient oil circulation and engine protection. This part is integral to maintaining the operational integrity of the engines by providing a consistent and reliable flow of lubricating oil.

Engine Compatibility

• 6B5.9 Series: The 3914006 oil pump is specifically engineered to fit seamlessly within the 6B5.9 engine series. This compatibility ensures that the oil pump meets the unique demands of the 6B5.9 engine, providing the necessary lubrication to various engine components.

Engine Grouping

• 6B Series: The 3914006 oil pump is also compatible with other models within the 6B engine series. This grouping includes engines that share similar design and operational characteristics, ensuring that the oil pump can effectively service these engines.

Role of Part 3914006 Lubricating Oil Pump in Engine Systems

The lubricating oil pump, identified by part number 3914006, is integral to maintaining the health and efficiency of various engine components. Its primary function is to circulate lubricating oil throughout the engine, ensuring that all moving parts are adequately coated to reduce friction and wear.

In the Block 6-B Short configuration, the lubricating oil pump works in conjunction with the crankshaft and camshaft to deliver oil to the bearings, pistons, and cylinder walls. This ensures smooth operation and prolongs the lifespan of these components.

For the Block Service module, the pump is responsible for delivering oil to areas that require frequent maintenance or have undergone repairs. This consistent lubrication helps in the recovery and optimal performance of serviced components.

In the standard Block Short setup, the pump ensures that essential parts such as the crankshaft bearings and camshaft lobes receive a steady supply of oil. This is particularly important in high-stress areas where metal-on-metal contact could lead to premature wear.

When integrated with the Pump Lubricating Oil system, part 3914006 enhances the overall lubrication efficiency. It works alongside filters and coolers to maintain oil quality, thereby supporting the pump’s role in delivering clean, temperature-regulated oil to critical engine parts.

For the Short block variant, the lubricating oil pump is vital for lubricating the lower end of the engine, including the crankshaft, rod bearings, and main bearings. This is essential for minimizing friction and heat generation in these high-load areas.

In the Block 6-BT configuration, the pump’s role extends to more complex engine designs, where it must deliver oil to additional components such as turbochargers and variable valve timing systems. This ensures that even the most sophisticated engine parts operate smoothly and efficiently.

Overall, the lubricating oil pump (part 3914006) is a foundational component in any engine system, playing a key role in the lubrication and protection of various engine blocks and their respective components.

Conclusion

The Cummins 3914006 Lubricating Oil Pump is a vital component in the engine systems of commercial trucks. Its robust design, high-quality materials, and efficient operation contribute to the longevity and performance of the engine. Proper installation, regular maintenance, and troubleshooting are essential for ensuring the optimal performance of this part. The pump’s role in circulating lubricating oil throughout the engine is crucial for reducing friction, wear, and heat generation, thereby enhancing the overall efficiency and reliability of the engine system.