AR11461
Lubricating Oil Pump Drive Shaft
Cummins®

Introduction

The AR11461 Lubricating Oil Pump Drive Shaft is a component designed for use in heavy-duty trucks, manufactured by Cummins. This drive shaft is integral to the engine’s lubrication system, ensuring that oil is circulated effectively throughout the engine to reduce friction, wear, and heat ¹. Cummins, a well-established name in the automotive industry, is recognized for its commitment to quality and innovation in manufacturing automotive components ².

Function and Operation

The Lubricating Oil Pump Drive Shaft operates within the engine’s lubrication system by transferring motion from the engine to the oil pump. This transfer of motion enables the oil pump to draw oil from the sump and distribute it under pressure to various engine components ³. The drive shaft’s role is vital in maintaining the continuous flow of oil, which is necessary for the engine’s efficient operation and longevity.

Key Features

This Cummins part is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring resistance to wear and corrosion. The design incorporates precision engineering to ensure a snug fit and efficient transfer of motion. Additionally, the drive shaft may feature unique characteristics such as a balanced design to minimize vibrations and a robust construction to withstand the demanding conditions of heavy-duty truck operations ⁴.

Benefits

The AR11461 offers several benefits, including improved engine lubrication, which contributes to reduced friction and wear on engine components. Its enhanced durability ensures long-term reliability, even under the strenuous conditions typical of heavy-duty truck use. The drive shaft’s reliable performance is crucial for maintaining engine efficiency and protecting against potential damage due to inadequate lubrication.

Installation

Proper installation of this part involves several steps to ensure it functions correctly within the engine system. It is important to follow manufacturer guidelines, which may include prerequisites such as ensuring the engine is clean and free of debris before installation. Special considerations might involve aligning the drive shaft correctly with the oil pump and securing it in place to prevent any movement that could affect its operation.

Maintenance and Troubleshooting

Routine maintenance of the Lubricating Oil Pump Drive Shaft is important to ensure its continued reliable operation. This may involve regular inspections for signs of wear or damage and ensuring that all connections are secure. Common issues that may arise include leaks or reduced efficiency in oil circulation, which can often be addressed by checking for proper alignment and condition of the drive shaft, and making adjustments or replacements as necessary.

Manufacturer - Cummins

Cummins has a long-standing reputation in the automotive industry for producing high-quality components. The company’s history is marked by a commitment to innovation and excellence in manufacturing. Cummins’ dedication to quality is evident in the design and production of the AR11461, reflecting their ongoing efforts to meet the demanding requirements of heavy-duty truck applications.

Compatibility with Cummins Engines

This part is compatible with several Cummins engine models, providing a reliable connection between the oil pump and the engine’s crankshaft.

Compatible Engines

1. GTA38 G CMEICS G116C

   • The AR11461 fits seamlessly with the GTA38 G CMEICS G116C engine, ensuring efficient oil flow and maintaining the engine’s operational integrity.

2. K38, KTA38GC CM558

   • This drive shaft is also compatible with the K38 and KTA38GC CM558 engines. Its design ensures that the oil pump operates correctly, preventing any potential engine damage due to insufficient lubrication.

3. QSK38 CM2150 MCRS, QSK38 CM850 MCRS

   • The AR11461 is engineered to fit the QSK38 CM2150 MCRS and QSK38 CM850 MCRS engines. Its precision-engineered construction guarantees that the oil pump delivers the necessary lubrication to all moving parts, enhancing the engine’s performance and longevity.

Each of these engines relies on the AR11461 drive shaft to maintain optimal lubrication, ensuring that the engine operates smoothly and efficiently. Cummins’ commitment to quality and reliability is evident in the design and manufacturing of this essential component.

Role in Engine Systems

The AR11461 is an integral component in the efficient operation of various engine systems. It is designed to work seamlessly with the lubricating oil pump, ensuring consistent and reliable oil circulation throughout the engine.

Integration with Lubricating Oil Pump

The drive shaft is directly connected to the lubricating oil pump, transferring rotational energy from the engine to the pump. This allows the pump to draw oil from the sump and distribute it to critical engine components, such as bearings, pistons, and camshafts. The consistent rotation provided by the drive shaft ensures that the pump operates smoothly, maintaining optimal oil pressure and flow.

Coordination with Engine Installation Kit

When installing the engine, the AR11461 drive shaft is often included in the engine installation kit. This kit typically contains all necessary components for a complete engine setup, including the base parts and EBM-pump. The drive shaft’s precise fit and function are essential for the proper assembly and operation of the engine, ensuring that all moving parts are adequately lubricated from the moment the engine is started.

Role in Lubricating Oil System

Within the lubricating oil system, the drive shaft plays a key role in maintaining the integrity of the oil circulation process. It works in conjunction with the lubricating oil pump kit, which may include additional components such as filters and pressure relief valves. The drive shaft’s reliable performance ensures that the pump can handle varying oil viscosities and temperatures, adapting to the engine’s operational demands.

Interaction with Base Parts and Pump

The drive shaft is mounted on the base, which serves as the foundation for the lubricating oil pump. This base must be sturdy and accurately machined to support the drive shaft’s rotational forces. The interaction between the drive shaft and the base is critical for the stability and efficiency of the pump. Any misalignment or instability can lead to inefficient oil circulation and potential engine damage.

Comprehensive Parts List Consideration

In a comprehensive parts list for engine maintenance or replacement, the AR11461 drive shaft is often listed alongside other essential components such as the lubricating oil, pump, and various base parts. This ensures that technicians have all the necessary elements to perform a thorough maintenance or repair, maintaining the engine’s performance and longevity.

Conclusion

The AR11461 Lubricating Oil Pump Drive Shaft is a fundamental component that ensures the smooth and efficient operation of the lubricating oil system. Its reliable performance is essential for the overall health and efficiency of the engine, making it a key element in any engine installation or maintenance procedure.