3873684
Mounting Spacer
Cummins®

Introduction

The Cummins 3873684 Mounting Spacer is a critical component in heavy-duty truck applications, designed to ensure proper alignment and spacing between various engine components. This part plays a significant role in maintaining the efficient operation and longevity of the truck’s engine system ³.

Purpose and Function

The primary function of the mounting spacer is to facilitate proper alignment and spacing between engine components. This ensures that parts are correctly positioned relative to each other, which is essential for the smooth operation of the engine. Proper alignment reduces the risk of component wear and tear, enhancing the overall efficiency and reliability of the truck ².

Key Features

Constructed from high-quality materials, the Cummins 3873684 Mounting Spacer is designed for durability and resistance to wear. Its dimensions are precisely engineered to fit specific applications, ensuring accurate alignment. The spacer features smooth surfaces to reduce friction and specially shaped edges for a secure fit, contributing to its reliable performance under demanding conditions ¹.

Benefits

The use of the Cummins 3873684 Mounting Spacer offers several benefits. Improved component alignment leads to reduced vibration during operation, enhancing ride comfort and reducing fatigue on both the vehicle and its occupants. Additionally, proper spacing between components can lead to more efficient engine operation, potentially improving fuel efficiency. The spacer also contributes to the longevity of the truck’s parts by preventing unnecessary stress or misalignment ³.

Installation and Usage

Proper installation of the Cummins 3873684 Mounting Spacer is crucial for maintaining the efficiency and reliability of the truck. Mechanics and engineers should ensure that the spacer is correctly positioned between the components it is designed to separate, following specific guidelines for alignment ¹.

Troubleshooting and Maintenance

Common issues with mounting spacers can include misalignment or wear, which may lead to increased vibration or component failure. Regular inspection of the spacer during maintenance checks can help identify these issues early. Maintenance practices such as cleaning the spacer and ensuring it is free from debris can prolong its lifespan. Additionally, replacing the spacer when signs of wear are detected can prevent more serious problems down the line ².

Manufacturer Information

Cummins Inc. is a well-established company in the automotive industry, known for its diesel engines, related technologies, and aftermarket parts for commercial vehicles. With a strong reputation for quality and innovation, Cummins has been a leading provider in the industry for many years. Their commitment to excellence is evident in the design and manufacturing of components like the Cummins 3873684 Mounting Spacer, ensuring that it meets the high standards required for heavy-duty truck applications ³.

Compatibility

The Cummins Mounting Spacer part number 3873684 is designed to fit a variety of Cummins engines, ensuring proper alignment and stability. This part is integral for maintaining the structural integrity of the engine assembly.

K19, K38, K50

The Mounting Spacer 3873684 is compatible with the K19, K38, and K50 engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The spacer ensures that the engine mounts are correctly positioned, reducing wear and tear on engine components and enhancing overall performance.

QSK60 G CM2358 K110, QSK60G

The QSK60 G CM2358 K110 and QSK60G engines also benefit from the use of the Mounting Spacer 3873684. These engines are part of Cummins’ QSK series, which is renowned for its power and efficiency. The spacer is crucial in maintaining the precise alignment of the engine mounts, contributing to the longevity and efficiency of these high-performance engines.

Grouping of Engines

The K19, K38, and K50 engines are grouped together due to their similar design and application scope. They are typically used in medium to heavy-duty applications, where durability and performance are paramount. The QSK60 G CM2358 K110 and QSK60G engines, on the other hand, belong to a more specialized category, often found in demanding industrial and marine environments. Despite their different applications, both groups of engines rely on the Mounting Spacer 3873684 for optimal performance and longevity.

Role in Engine Systems

The Cummins 3873684 Mounting Spacer is integral to the assembly and functionality of various engine components. It ensures proper alignment and spacing between parts, which is essential for the efficient operation of the engine system.

Actuator Bracket Mounting

In the context of actuator bracket mounting, the Mounting Spacer provides the necessary distance between the actuator bracket and the engine block. This spacing is vital for the actuator to function correctly, allowing it to respond accurately to control signals without interference from adjacent components.

Adjusting Link Mounting

For the adjusting link mounting, the Mounting Spacer plays a role in maintaining the correct tension and alignment of the adjusting link. This ensures that the link can make precise adjustments to other engine components, such as the governor or electronic controls, without binding or excessive play.

Alternator Mounting

When mounting the alternator, the Mounting Spacer helps in achieving the right belt tension and alignment. Proper spacing ensures that the alternator belt runs true, reducing wear and tear on both the belt and the alternator pulley, thereby enhancing the reliability of the charging system.

Belt Guard Mounting

In belt guard mounting applications, the Mounting Spacer ensures that the guard is positioned correctly to protect the belts from debris and excessive wear. It also helps in maintaining the structural integrity of the guard, ensuring it does not interfere with the movement of the belts.

Governor and Electronic Link Adjusting

For governor and electronic link adjusting mechanisms, the Mounting Spacer ensures that these components are mounted at the correct distance from the engine block. This is important for the accurate operation of the governor, which controls the engine speed, and the electronic links, which transmit signals between various engine control units.

Mounting Actuator Bracket and Alternator

In scenarios where both the actuator bracket and alternator are mounted using the same structure, the Mounting Spacer ensures that there is no conflict between these components. It provides the necessary clearance, allowing both the actuator and alternator to operate within their specified parameters without interference.

Conclusion

Overall, the Cummins 3873684 Mounting Spacer is a key component in maintaining the precise alignment and operation of various engine system parts, contributing to the overall efficiency and reliability of the engine.