3912090
Mounting Spacer
Cummins®

Introduction

The Cummins 3912090 Mounting Spacer is a critical component in heavy-duty truck applications, designed to provide the necessary spacing and alignment between engine or transmission components. This ensures optimal performance and longevity of the mounted systems, enhancing the stability and efficiency of the truck’s mechanical systems ².

Basic Concepts of Mounting Spacers

Mounting spacers are essential mechanical components that create the required distance between two parts, maintaining proper alignment and stability within a system. They contribute to the efficient operation and durability of mechanical assemblies by ensuring parts are correctly spaced ¹.

Purpose of the Cummins 3912090 Mounting Spacer

The Cummins 3912090 Mounting Spacer is designed to facilitate the correct mounting of engines or transmissions in heavy-duty trucks. It ensures proper alignment of these critical components, which is vital for the smooth operation of the vehicle. This spacer helps distribute loads evenly and reduces stress on the mounting points, enhancing overall performance and reliability ².

Key Features

The Cummins 3912090 Mounting Spacer features a material composition designed to withstand heavy-duty applications and precise dimensions for a perfect fit. Its design incorporates features that improve vibration damping and component alignment, contributing to its performance and durability ².

Benefits of Using the Cummins 3912090 Mounting Spacer

Using the Cummins 3912090 Mounting Spacer provides improved vibration damping, reducing wear and tear on the engine or transmission. It ensures enhanced component alignment for efficient mechanical system operation and contributes to the increased longevity of the mounted systems by maintaining optimal spacing and load distribution ².

Installation Considerations

Proper installation of the Cummins 3912090 Mounting Spacer is crucial for its functionality. This includes adhering to torque specifications, performing alignment checks, and ensuring compatibility with other system components ².

Troubleshooting Common Issues

Common issues with mounting spacers, such as excessive vibration or misalignment, can often be traced back to incorrect installation or wear and tear. Troubleshooting involves checking the installation, inspecting the spacer for damage, and making necessary adjustments or replacements ².

Maintenance Tips

Regular maintenance of the Cummins 3912090 Mounting Spacer is important for its continued performance. This includes periodic inspections for wear or damage, cleaning to remove debris, and considering replacement if significant wear is detected or performance issues arise ².

Cummins Overview

Cummins Inc. is renowned for its quality and reliability in the automotive and heavy-duty truck industry. The company’s commitment to innovation and customer satisfaction has established it as a trusted provider of solutions for demanding heavy-duty applications ².

Cummins Mounting Spacer 3912090 Compatibility

The Cummins Mounting Spacer part number 3912090 is designed for compatibility with several engine models, ensuring proper alignment and stability. It is integral for maintaining the structural integrity of the engine and its components ².

Engine Compatibility

6B5.9 Series The 6B5.9 engine series benefits from the precise fit of the 3912090 Mounting Spacer, ensuring alignment of engine components for smooth operation and longevity ².

B5.9 G Series The B5.9 G engine series also utilizes the 3912090 Mounting Spacer, providing necessary support and stability for efficient engine performance ².

Role of Part 3912090 Mounting Spacer in Engine Systems

The 3912090 Mounting Spacer is crucial in the assembly and integration of various engine systems. It facilitates proper alignment and spacing between the Block and other critical components, ensuring optimal performance and durability ².

Integration with the Block and Cylinder Block

When installing the Block, the Mounting Spacer is positioned between the Block and the engine frame or mounting surface. This ensures the Block is held at the correct distance from the frame, vital for the structural integrity of the engine. For the Cylinder Block, the spacer maintains precise alignment needed for the efficient operation of the pistons and crankshaft ².

Function in Short Block and Short Block 6cart

For the Short Block assembly, which includes the Cylinder Block, crankshaft, pistons, and other essential components, the Mounting Spacer secures the Short Block to the engine frame. This is particularly important in the Short Block 6cart configuration, where additional cylinders require meticulous alignment for balanced engine performance ².

Use in Short Engine Kit

In a Short Engine Kit, which typically includes the Short Block along with ancillary components like the oil pan and front and rear main seals, the Mounting Spacer ensures the entire assembly is correctly positioned on the engine frame. This is essential for the proper functioning of the engine’s moving parts and for maintaining the integrity of the seals ².

Interaction with Block Vent Plumbing and Vent

The Mounting Spacer also interacts with the Block Vent Plumbing and Vent system. By ensuring the Block is correctly spaced from the frame, the spacer allows for the proper installation and function of the vent plumbing. This is important for managing pressure within the engine block and for the effective operation of the ventilation system ².

Contribution to Engine Coolant System

Finally, the Mounting Spacer indirectly contributes to the efficiency of the Engine Coolant system. By ensuring the Block is correctly aligned and spaced, the spacer helps maintain the structural integrity of the engine, which is necessary for the consistent flow of coolant through the engine passages. This, in turn, helps in maintaining optimal engine temperature and performance ².

Conclusion

The Cummins 3912090 Mounting Spacer plays a significant role in the performance and reliability of heavy-duty truck engines. Its proper installation and maintenance are crucial for ensuring the efficient operation of the engine and transmission systems. By providing the necessary spacing and alignment, this part contributes to the longevity and stability of the mechanical systems in heavy-duty applications.