3967057
Starting Motor Spacer
Cummins®

The Cummins 3967057 Starting Motor Spacer is a component designed to facilitate the proper operation of heavy-duty trucks. Its primary role is to ensure the correct alignment and spacing between the starter motor and the engine, which is vital for the efficient starting of the vehicle.

Basic Concepts of Starting Motor Spacers

A starting motor spacer is a mechanical component that provides the necessary distance between the starter motor and the engine. This spacing is crucial for the proper engagement of the starter gear with the flywheel, ensuring that the engine cranks smoothly without causing undue stress on the components. The spacer also helps in maintaining the alignment of the starter motor, which is important for the overall efficiency and longevity of the starting system ¹.

Purpose of the 3967057 Starting Motor Spacer

The 3967057 Starting Motor Spacer plays a significant role in the operation of a truck by maintaining the proper alignment and spacing between the starter motor and the engine. This ensures that the starter motor engages correctly with the flywheel, allowing for smooth and reliable engine starts. Proper spacing also helps in reducing wear on the starter components and contributes to the overall performance and reliability of the engine ².

Key Features

The Cummins 3967057 Starting Motor Spacer is crafted from durable materials to withstand the rigors of heavy-duty truck applications. Its design specifications are tailored to meet the specific requirements of Cummins engines, ensuring a precise fit and function. Unique attributes of this spacer include its robust construction and precise engineering, which enhance its performance and reliability in demanding environments.

Benefits

Using the 3967057 Starting Motor Spacer offers several benefits. It contributes to improved starting reliability by ensuring proper alignment and spacing. This reduces wear on starter components, leading to longer component life. Additionally, the spacer enhances overall engine performance by facilitating smooth and efficient engine starts.

Installation Process

Installing the 3967057 Starting Motor Spacer requires careful attention to detail. The process involves positioning the spacer between the starter motor and the engine, ensuring it is correctly aligned. Necessary tools may include a torque wrench for tightening bolts to the manufacturer’s specifications. Precautions should be taken to avoid over-tightening, which could damage the spacer or other components. Alignment checks are crucial to confirm that the starter motor is properly positioned relative to the flywheel.

Troubleshooting Common Issues

Common issues with the 3967057 Starting Motor Spacer may include misalignment or wear. Misalignment can lead to difficulty in starting the engine or increased wear on the starter components. Wear may result from improper installation or extended use. Troubleshooting steps include checking the alignment of the starter motor, inspecting the spacer for signs of wear, and ensuring that all components are correctly installed and tightened to the specified torque.

Maintenance Tips

Regular maintenance of the 3967057 Starting Motor Spacer is important for its longevity and optimal performance. This includes periodic inspection for signs of wear or damage, and cleaning the spacer to remove any debris that may accumulate. Following the manufacturer’s recommended inspection intervals and maintenance procedures will help ensure the spacer continues to function effectively.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins has established a strong reputation in the automotive and heavy-duty truck industry for producing reliable and high-performance engines and components. The company’s product range includes engines, filtration, emissions solutions, and related technologies, all designed to meet the demanding requirements of various applications.

Compatibility of Starting Motor Spacer Part 3967057 with Cummins Engines

The Starting Motor Spacer part 3967057, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part plays a crucial role in ensuring the proper alignment and functionality of the starting motor within the engine assembly. Below is a detailed description of its compatibility with the specified engine models.

ISC Series Engines

• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250
• ISL CM2150
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250

The Starting Motor Spacer part 3967057 is compatible with all ISC series engines listed above. This includes both the ISC and ISL variants, as well as those with specific model numbers such as CM2150, CM554, CM850, and CM2250. The spacer ensures that the starting motor is correctly positioned, facilitating smooth engine starts and reducing wear on the motor and engine components.

QSC and QSL Series Engines

• QSC8.3 CM554
• QSC8.3 CM850 (CM2850)
• QSC9 CM2250 / QSL9 CM2250
• QSL8.9 CM2150 L141
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM554
• QSL9 CM850 (CM2850)

The Starting Motor Spacer part 3967057 is also compatible with the QSC and QSL series engines. This includes engines with model numbers such as CM554, CM850 (CM2850), CM2250, and CM2350. The spacer is engineered to fit these engines, ensuring that the starting motor is securely and correctly aligned, which is vital for optimal engine performance and longevity.

Other Compatible Engines

• 6C8.3
• L GAS PLUS CM556
• L8.9
• L9 CM2670 L128B

The Starting Motor Spacer part 3967057 also fits the 6C8.3, L GAS PLUS CM556, L8.9, and L9 CM2670 L128B engines. This part ensures that the starting motor is properly aligned and secured, which is essential for the efficient operation of these engines.

By ensuring the correct fit and alignment of the starting motor, the Starting Motor Spacer part 3967057 contributes to the overall reliability and performance of the engines it is used with.

Role of Part 3967057 Starting Motor Spacer in Engine Systems

The Part 3967057 Starting Motor Spacer is an essential component in the assembly and operation of engine systems, particularly in the context of starting motor mounting. This spacer is positioned between the starting motor and its mounting bracket, ensuring proper alignment and spacing.

When integrating the starting motor into the engine system, the spacer facilitates a secure attachment. It allows for the correct positioning of the starting motor relative to the flywheel or flexplate, which is vital for the efficient engagement of the starter gear with the ring gear on the flywheel.

The spacer also plays a role in absorbing vibrations and reducing stress on the starting motor mounting points. By providing a stable and consistent gap, it helps in maintaining the integrity of the starting motor’s operation over time.

In summary, the Part 3967057 Starting Motor Spacer is a key element in the starting motor mounting process, contributing to the overall reliability and performance of the engine system.

Conclusion

The Cummins 3967057 Starting Motor Spacer is a critical component in the efficient operation of heavy-duty trucks. By ensuring proper alignment and spacing between the starter motor and the engine, this part facilitates smooth engine starts, reduces wear on starter components, and enhances overall engine performance. Regular maintenance and proper installation are essential for the longevity and optimal performance of the spacer. Its compatibility with a wide range of Cummins engines underscores its importance in the automotive and heavy-duty truck industry.