3609825
Lubricating Oil Pump Drive Shaft
Cummins®

Introduction

The Lubricating Oil Pump Drive Shaft 3609825, manufactured by Cummins, is a critical component in the lubrication system of heavy-duty trucks. This drive shaft ensures that engine components receive the necessary lubrication for optimal performance and longevity ¹.

Function and Operation

This Cummins part operates by transferring rotational motion from the engine to the oil pump. This transfer ensures that the oil pump can circulate lubricant throughout the engine. The drive shaft interacts with the engine’s crankshaft and the oil pump, facilitating a continuous flow of oil to critical engine components. This mechanism is vital for maintaining the engine’s efficiency and reducing wear on moving parts ².

Purpose of the Lubricating Oil Pump Drive Shaft 3609825

The primary role of this part in a truck’s operation is to support the lubrication system. By ensuring a consistent supply of oil to engine components, it helps in reducing friction, cooling parts, and carrying away contaminants. This contributes to the overall performance, durability, and reliability of the engine.

Key Features

The Lubricating Oil Pump Drive Shaft 3609825 is designed with several key features to enhance its functionality and durability. It is typically made from high-strength materials to withstand the rigors of engine operation. The design includes precision-machined surfaces to ensure a smooth transfer of motion and minimal wear. Additionally, it may feature specific couplings or attachments to securely connect to both the crankshaft and the oil pump.

Benefits

Incorporating this Cummins part into a truck’s engine system offers several advantages. It contributes to improved engine performance by ensuring consistent lubrication, which reduces friction and wear on engine components. This can lead to enhanced longevity and reliability of the engine, potentially lowering maintenance costs and increasing the vehicle’s operational lifespan.

Installation Process

Installing the Lubricating Oil Pump Drive Shaft 3609825 requires careful attention to detail. The process involves aligning the drive shaft with the crankshaft and the oil pump, ensuring that all connections are secure and properly torqued. It is important to use the correct tools and follow manufacturer guidelines to avoid damage to the component or the engine. Precautions should be taken to ensure that the engine is clean and free of debris before installation.

Common Issues and Troubleshooting

Typical problems associated with the Lubricating Oil Pump Drive Shaft may include wear or damage to the shaft, misalignment, or failure of the connections. Troubleshooting steps involve inspecting the drive shaft for signs of wear, ensuring proper alignment, and checking the integrity of all connections. Solutions may range from simple adjustments to replacement of the drive shaft if damage is significant.

Maintenance Tips

Regular maintenance of the Lubricating Oil Pump Drive Shaft 3609825 is key to ensuring its efficient operation. This includes periodic inspections for signs of wear or damage, ensuring that all connections remain secure, and following the manufacturer’s recommended maintenance schedule. Proper care and attention to the lubrication system as a whole will also contribute to the longevity and performance of the drive shaft.

Cummins Overview

Cummins is a renowned manufacturer in the commercial truck industry, known for its wide range of high-quality engine and component products. With a history of innovation and excellence, Cummins has established a strong reputation for producing reliable and durable parts that meet the demanding requirements of heavy-duty applications. Their product range includes engines, filtration systems, and aftermarket parts, all designed to enhance the performance and efficiency of commercial vehicles.

Compatibility

The Cummins lubricating oil pump drive shaft part number 3609825 is designed to fit a variety of engine models. This drive shaft is crucial for the proper functioning of the engine’s lubrication system, ensuring that oil is effectively circulated throughout the engine components.

Compatible Engines

• G855 Series:

  • G855
  • G855 CM558
  • GTA855 CM558 (CM2358)

• N14 Series:

  • N14 CELECT
  • N14 CELECT PLUS
  • N14 G
  • N14 MECHANICAL

• NH/NT 855 Series:

  • NH/NT 855

• QSN14 Series:

  • QSN14 CM876 N103
  • QSNT14 CM876 N102

This drive shaft is engineered to meet the specific requirements of these engines, ensuring compatibility and reliability in various operational conditions.

Role in Engine Systems

The Lubricating Oil Pump Drive Shaft 3609825 is integral to the operation of various engine systems, ensuring efficient lubrication and performance. Here’s how it interfaces with the provided components:

Integration with Lubricating Oil Systems

• Lubricating Oil Assembly Pump and Lubricating Oil Pump: The drive shaft directly connects to these pumps, transferring rotational energy from the engine to the pump mechanism. This ensures consistent oil flow throughout the engine, reducing friction and wear on moving parts.
• EBM: Pump, Lub Oil: In engines equipped with an Electric Bearing Module (EBM) for lubrication, the drive shaft maintains the necessary motion for the pump to distribute oil to critical bearing surfaces.
• Service Kit & Pump, Lub Oil: When utilizing a service kit that includes a lubrication pump, the drive shaft is essential for activating the pump, thereby facilitating the circulation of lubricant.

Role in Engine Overhaul and Maintenance Kits

• Overhaul Kit: During engine overhauls, the drive shaft is a key component that needs to be in proper working condition to ensure the lubricating oil pump functions correctly post-overhaul.
• Short Block Engine Kit and Short Block Kit: In these kits, which often include the cylinder block, crankshaft, pistons, and other essential components, the drive shaft ensures that the lubrication system is operational, protecting the newly installed or refurbished parts.
• Kit On Board Spares: For engines equipped with on-board spare kits, the drive shaft is a vital spare part that ensures the lubrication system can be quickly restored in case of failure.

Interaction with Cylinder and Block Components

• Block, Cyl Short NTC-300, Block, Cyl Short NTC-350, Block, Cyl Short NTC-400, and Cylinder Short Block: These components rely on consistent lubrication to maintain performance and longevity. The drive shaft ensures that the oil pump delivers lubricant to these areas, minimizing wear and tear.
• Base Parts and Block: The drive shaft’s role extends to these fundamental engine components, providing the necessary drive for the oil pump to lubricate the crankshaft, main bearings, and other critical areas within the block.

Auxiliary and Conversion Kits

• Auxiliary Pump: In systems where an auxiliary pump is used for additional lubrication needs, the drive shaft can be adapted to power this pump, enhancing the overall lubrication strategy of the engine.
• Lubricating Pump Conversion Kit: When converting an engine’s lubrication system, the drive shaft is often modified or replaced to accommodate the new pump configuration, ensuring seamless integration and operation.

Main Bearing Shell and Oil Pump

• Main Bearing Shell: The drive shaft’s function is to power the oil pump, which in turn lubricates the main bearing shells, reducing friction and preventing damage.
• Oil Pump: The drive shaft is the direct link between the engine’s rotating components and the oil pump, ensuring that oil is continuously circulated to all lubricated parts.

Conclusion

The Lubricating Oil Pump Drive Shaft 3609825 is a fundamental component that ensures the lubrication system operates efficiently across a variety of engine configurations and maintenance scenarios. Its role in transferring rotational motion to the oil pump is critical for maintaining engine performance, reducing wear, and ensuring the longevity of engine components.