3934041
Starting Motor Spacer
Cummins®

The Cummins 3934041 Starting Motor Spacer is a component designed to facilitate the proper operation of the starting system in heavy-duty trucks. Its role is to ensure the correct alignment and functioning of the starting motor, which is vital for the reliable starting of the engine under various conditions ¹.

Purpose and Function

The Starting Motor Spacer plays a role in the starting system by providing the necessary spacing between the starter motor and the engine. This spacing is crucial for the proper alignment of the starter motor, ensuring that it engages correctly with the flywheel or flexplate. Proper alignment is important for efficient and reliable engine starts, reducing the risk of mechanical damage and ensuring smooth operation ².

Key Features

The Cummins 3934041 Starting Motor Spacer is constructed from high-quality materials, designed to withstand the rigors of heavy-duty truck operations. Its design specifications include precise dimensions to ensure optimal fit and function. Unique attributes of this spacer may include enhanced durability features and a design that promotes easy installation and maintenance ³.

Benefits

Using the Cummins 3934041 Starting Motor Spacer can lead to improved starting reliability, as it ensures that the starter motor is properly aligned and functions efficiently. The spacer’s durable construction contributes to its longevity, potentially reducing maintenance needs and associated costs over time. Additionally, its reliable performance helps in maintaining the overall efficiency of the truck’s starting system.

Installation and Compatibility

Proper installation of the Starting Motor Spacer involves following specific guidelines to ensure it is correctly positioned between the starter motor and the engine. It is important to adhere to any requirements or considerations provided by the manufacturer to ensure optimal performance. The spacer is compatible with various Cummins engines, and it is designed to integrate seamlessly with the starting system of these engines.

Maintenance and Troubleshooting

To maintain the Starting Motor Spacer and ensure its optimal performance, regular inspections are recommended to check for any signs of wear or damage. Common issues may include misalignment or wear, which can be addressed by realigning the spacer or replacing it if necessary. Following manufacturer guidelines for maintenance can help in identifying and resolving issues effectively.

Performance and Reliability

The Cummins 3934041 Starting Motor Spacer is designed to perform reliably under a range of operating conditions. Its role in ensuring the proper alignment and function of the starting motor contributes to the overall efficiency and dependability of the truck’s starting system. The spacer’s durable construction and precise design help in maintaining consistent performance over time.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a strong reputation in the automotive and heavy-duty truck industry, Cummins is known for its commitment to quality and innovation in engine components. The company’s extensive product range and focus on customer satisfaction underscore its position as a leader in the industry.

Compatibility of Starting Motor Spacer Part 3934041 with Cummins Engines

The Starting Motor Spacer part 3934041, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is crucial for ensuring the proper alignment and functionality of the starting motor within the engine assembly. Below is a detailed overview of the engines with which this part is compatible:

ISC Series Engines

• ISC CM554: This engine model is compatible with the Starting Motor Spacer part 3934041. The spacer ensures that the starting motor is correctly positioned relative to the engine block, facilitating efficient operation.
• ISC CM850: Similarly, the ISC CM850 engine also requires the use of the Starting Motor Spacer part 3934041. This part is essential for maintaining the integrity of the engine’s starting system.

ISL Series Engines

• ISL CM554: The ISL CM554 engine is another model that benefits from the use of the Starting Motor Spacer part 3934041. This component helps in the precise alignment of the starting motor, contributing to the engine’s overall performance.
• ISL9 CM2150 SN: This engine variant also utilizes the Starting Motor Spacer part 3934041. The spacer is critical in ensuring that the starting motor operates smoothly and efficiently.
• ISL9.5 CM2880 L138: The ISL9.5 CM2880 L138 engine is compatible with the Starting Motor Spacer part 3934041. This part ensures that the starting motor is correctly positioned, which is vital for the engine’s starting process.

Other Compatible Engines

• 6C8.3: The 6C8.3 engine is designed to work with the Starting Motor Spacer part 3934041. This part is essential for maintaining the alignment of the starting motor.
• C GAS PLUS CM556: The C GAS PLUS CM556 engine also requires the Starting Motor Spacer part 3934041. This component ensures that the starting motor is properly aligned within the engine assembly.
• C8.3 G: The C8.3 G engine is another model that is compatible with the Starting Motor Spacer part 3934041. This part is crucial for the efficient operation of the starting motor.
• L8.9G CMOH2.0 L125B: The L8.9G CMOH2.0 L125B engine is also designed to work with the Starting Motor Spacer part 3934041. This component ensures that the starting motor is correctly positioned.
• QSC8.3 CM554: The QSC8.3 CM554 engine is compatible with the Starting Motor Spacer part 3934041. This part is essential for maintaining the alignment of the starting motor.
• QSL9 CM554: The QSL9 CM554 engine also requires the Starting Motor Spacer part 3934041. This component ensures that the starting motor operates efficiently and effectively.

Role of Part 3934041 Starting Motor Spacer in Engine Systems

The part 3934041 Starting Motor Spacer is an integral component in the assembly and functionality of various engine systems. Its primary role is to ensure proper alignment and spacing between the starting motor and its mounting points.

When integrating the starting motor into an engine system, the spacer is positioned between the motor and the mounting bracket. This arrangement facilitates accurate attachment of the starting motor to the engine block or frame. The spacer helps in maintaining the correct distance, which is essential for the efficient operation of the starting motor.

In the context of the starting motor mounting process, the spacer allows for adjustments that might be necessary due to manufacturing tolerances or wear and tear. It ensures that the motor is neither too tight nor too loose, which could otherwise lead to inefficient starting or potential damage to the motor or engine components.

Furthermore, the spacer plays a significant role in vibration management. By providing a consistent and stable interface between the motor and its mounting, it helps in reducing the transmission of vibrations to the engine block. This is particularly important in high-performance engines where precision and stability are paramount.

In summary, the part 3934041 Starting Motor Spacer is a key element in the starting motor mounting system, contributing to the overall reliability and performance of the engine.

Conclusion

The Cummins 3934041 Starting Motor Spacer is a critical component in the starting system of heavy-duty trucks, ensuring proper alignment and efficient operation of the starting motor. Its durable construction, precise design, and compatibility with various Cummins engines make it an essential part for maintaining the reliability and performance of the engine’s starting system.