3963668
Mounting Spacer
Cummins®

The Cummins 3963668 Mounting Spacer is a component designed for use in heavy-duty truck applications. Its purpose is to ensure proper alignment and spacing between various components within the truck’s engine system. This spacer plays a role in maintaining the structural integrity and operational efficiency of the engine by providing the necessary separation and alignment for optimal performance ³.

Purpose and Function

The Cummins 3963668 Mounting Spacer facilitates proper alignment and spacing between components in a truck’s engine system. By maintaining the correct distance between parts, it helps ensure that components are properly positioned relative to each other. This alignment is important for the efficient operation of the engine, as it allows for smooth interaction between moving parts and reduces the risk of misalignment-related issues ¹.

Key Features

The Cummins 3963668 Mounting Spacer is constructed from high-quality materials that offer durability and resistance to wear and tear. Its design specifications are tailored to meet the demanding requirements of heavy-duty truck applications. The spacer features precise dimensions to ensure accurate alignment and spacing, and it is engineered to withstand the rigors of engine operation. Additionally, the spacer may include unique attributes such as corrosion-resistant coatings or enhanced load-bearing capabilities to further enhance its performance ².

Benefits

The Cummins 3963668 Mounting Spacer provides several benefits to heavy-duty truck engines. By ensuring proper alignment and spacing, it contributes to improved component alignment, which can lead to more efficient engine operation. The spacer also helps reduce vibration by maintaining consistent spacing between components, which can enhance the overall stability of the engine. Furthermore, its durable construction contributes to enhanced longevity and reliability, making it a valuable component for maintaining engine performance over time ³.

Installation Process

Proper installation of the Cummins 3963668 Mounting Spacer is essential for ensuring its effectiveness. The installation process typically involves the following steps:

1. Identify the location where the spacer will be installed within the engine system.
2. Clean the installation area to remove any debris or contaminants that could affect the spacer’s performance.
3. Position the spacer between the relevant components, ensuring that it is aligned correctly.
4. Secure the spacer in place using appropriate fasteners or mounting hardware.
5. Verify that the spacer is properly installed and that the components are aligned as intended ¹.

Maintenance and Troubleshooting

To ensure optimal performance of the Cummins 3963668 Mounting Spacer, regular maintenance is recommended. This may include inspecting the spacer for signs of wear or damage, cleaning the spacer and surrounding areas to prevent contamination, and verifying that the spacer remains properly installed. Common issues that may arise with the spacer include misalignment or loosening of fasteners, which can be addressed by realigning the spacer or tightening the fasteners as needed ².

Manufacturer Information

Cummins is a reputable manufacturer known for producing high-quality engine components for heavy-duty truck applications. With a history of innovation and a commitment to quality, Cummins has established itself as a trusted name in the industry. The company’s dedication to research and development ensures that their products, including the 3963668 Mounting Spacer, meet the rigorous demands of heavy-duty truck engines ³.

Cummins Engine Compatibility with Mounting Spacer Part 3963668

The Cummins Mounting Spacer part number 3963668 is designed to ensure proper alignment and secure mounting of various engine parts. This part is compatible with several Cummins engine models, each of which is engineered for specific applications and performance characteristics. Below is a detailed overview of the engines that utilize this mounting spacer.

B5.6 CM2670 B152B and B6.7 CM2670 B153B

The B5.6 CM2670 B152B and B6.7 CM2670 B153B engines are part of Cummins’ B Series, known for their robust design and reliability in medium-duty applications. The mounting spacer part 3963668 is integral to these engines, ensuring that the engine mounts are correctly positioned, which is crucial for maintaining engine stability and performance.

ISB/ISD 6.7 CM2150 SN

The ISB/ISD 6.7 CM2150 SN engines are part of the Cummins ISB/ISD family, which is widely used in heavy-duty applications. These engines are known for their power and efficiency. The mounting spacer part 3963668 plays a role in these engines by providing the necessary support and alignment for the engine mounts, contributing to the overall durability and performance of the engine.

ISBE CM2150 and ISBE CM800

The ISBE CM2150 and ISBE CM800 engines are part of the Cummins ISBE series, designed for on-highway applications. These engines are engineered for high performance and efficiency. The mounting spacer part 3963668 is important in these engines, ensuring that the engine mounts are properly aligned and secured, which is critical for maintaining the engine’s operational integrity.

ISBE4 CM850

The ISBE4 CM850 engine is part of the Cummins ISBE4 series, which is designed for high-performance on-highway applications. This engine is known for its power and efficiency. The mounting spacer part 3963668 is a component in these engines, providing the necessary support and alignment for the engine mounts, which is essential for the engine’s performance and longevity.

QSB6.7 CM850 (CM2850) and QSB7 CM2880 B117

The QSB6.7 CM850 (CM2850) and QSB7 CM2880 B117 engines are part of the Cummins QSB series, which is designed for medium-duty applications. These engines are known for their power and reliability. The mounting spacer part 3963668 is important in these engines, ensuring that the engine mounts are correctly positioned, which is essential for maintaining the engine’s stability and performance.

Component Usage

The Cummins 3963668 Mounting Spacer is instrumental in ensuring the proper alignment and spacing between various components within engine systems. When integrated into an engine arrangement, this spacer facilitates the correct positioning of the turbocharger relative to the cylinder block and the long block.

In a turbocharger arrangement, the mounting spacer plays a role by providing the necessary gap to accommodate thermal expansion and contraction, which are common in high-temperature environments. This ensures that the turbocharger maintains optimal performance without undue stress on the mounting points.

Furthermore, the spacer assists in vibration damping, which is important for the longevity and reliability of the engine components. By maintaining consistent spacing, it helps in reducing the likelihood of component fatigue and failure over time.

Conclusion

In summary, the Cummins 3963668 Mounting Spacer is a key element in the precise assembly and functioning of engine systems, contributing to both the efficiency and durability of the engine arrangement. Proper installation, regular maintenance, and understanding its role in engine compatibility are essential for maximizing the benefits of this Cummins part.