3945252
Mounting Spacer
Cummins®

Introduction

The Cummins 3945252 Mounting Spacer is a critical component designed for commercial trucks, ensuring proper spacing between components during assembly. This facilitates the correct alignment and function of mechanical systems, contributing to the vehicle’s efficiency and reliability ¹.

Basic Concepts of Mounting Spacers

Mounting spacers are essential in mechanical assemblies, providing the necessary distance between parts. They ensure correct spacing, distribute loads, reduce vibrations, and maintain component alignment, often constructed from materials that withstand operational stresses and environmental conditions ².

Role of the 3945252 Mounting Spacer in Truck Operation

Positioned within the truck’s assembly, the Cummins 3945252 Mounting Spacer ensures proper component alignment, crucial for efficient truck operation. It maintains designated distances between components, contributing to the smooth functioning of mechanical systems and enhancing the truck’s performance and durability ³.

Key Features

The Cummins 3945252 Mounting Spacer is distinguished by its material composition, dimensions, and design features. Crafted from durable materials, its dimensions are precisely engineered for effective performance within the truck’s assembly. Design features include smooth surfaces to reduce friction and wear.

Benefits

Utilizing the Cummins 3945252 Mounting Spacer improves component alignment, reduces vibrations for a smoother ride, and enhances the durability of the truck’s mechanical systems by ensuring correct component positioning and spacing.

Troubleshooting and Maintenance

Common issues with mounting spacers include wear, damage, or incorrect installation. Troubleshooting involves inspecting for wear or damage, ensuring correct installation, and replacing if necessary. Regular maintenance, including condition checks during inspections, ensures the longevity and proper function of the truck’s mechanical systems.

About Cummins

Cummins Inc., a global power leader, designs, manufactures, and distributes engines, filtration, and power generation products. With over a century of history, Cummins is renowned for quality, reliability, and innovation in the commercial truck industry, offering a wide range of products for various applications.

Cummins Engine Mounting Spacer 3945252 Compatibility

The Cummins Mounting Spacer 3945252 is compatible with various Cummins engines, ensuring proper alignment and secure mounting. It is designed for a range of engine series, contributing to engine performance and longevity.

Cummins B Series Engines

• B4.5 CM2350 B129B
• B4.5 RGT
• B5.6 CM2670 B152B

Cummins B6.7 Series Engines

• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

Cummins D Series Engines

• D4.0 CM2620 D103B

Cummins F Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

Cummins ISB Series Engines

• ISB (Chrysler)
• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB5.9 CM2880 B110

Role of Part 3945252 Mounting Spacer in Engine Systems

The Cummins 3945252 Mounting Spacer is vital for the proper alignment and secure fitting of engine components, enhancing performance and durability across various engine setups.

Turbocharger Arrangement

In turbocharger arrangements, this part maintains the correct distance between the turbocharger and the exhaust manifold, ensuring optimal airflow and reducing vibrations.

Exhaust Manifold Mounting

For exhaust manifold mounting, the 3945252 provides the necessary gap to accommodate thermal expansion, preventing direct contact with other components.

Compressor Coolant Plumbing

In compressor coolant plumbing, the Mounting Spacer ensures proper spacing from the engine block, maintaining coolant system integrity and preventing leaks.

Exhaust Recirculation Water Plumbing

In exhaust recirculation water plumbing, this Cummins part maintains correct spacing between water lines and engine components, ensuring efficient recirculation and cooling.

Cylinder Block and Cam Follower

When installing the cam follower on the cylinder block, the 3945252 ensures correct positioning relative to the camshaft, important for smooth valve train operation.

Air Intake and Exhaust Manifolds

In both air intake and exhaust manifolds, the Mounting Spacer ensures secure mounting to the cylinder block, maintaining airtight seals for efficient engine operation.

Service and Hardware Kits

In service and hardware kits, the 3945252 facilitates reassembly of engine components after maintenance, ensuring parts are refitted to original specifications.

Long Block Assembly

During long block assembly, this part ensures ancillary components like the turbocharger and exhaust manifold are correctly positioned relative to the engine block.

Turbocharger Upgrade Kits

In turbocharger upgrade kits, the 3945252 accommodates the increased size and weight of upgraded turbochargers, ensuring secure mounting within designed parameters.

Filter and Fuel System Components

In filter and fuel system components, the Mounting Spacer ensures correct spacing from the engine block, maintaining fuel delivery system efficiency and preventing fuel line contamination.

Conclusion

The Cummins 3945252 Mounting Spacer, despite its small size, plays a significant role in the precise fitting and alignment of various engine components. Its application across different engine setups contributes to the overall performance and longevity of the engine system.