3415518
Starting Motor Spacer
Cummins®

Introduction

The Cummins 3415518 Starting Motor Spacer is a component designed for use in the starting systems of commercial trucks. Its purpose is to ensure the proper alignment and operation of the starting motor, which is vital for the reliable starting of the engine under various conditions ¹.

Basic Concepts of Starting Motor Spacers

A starting motor spacer is a mechanical component that facilitates the correct positioning of the starting motor within the engine assembly. It ensures that the motor is aligned properly with the flywheel or flexplate, allowing for efficient engagement and disengagement during the starting process ². This alignment is crucial for the smooth operation of the starting system and the prevention of mechanical wear or damage.

Purpose of the 3415518 Starting Motor Spacer

The Cummins 3415518 Starting Motor Spacer plays a role in the starting system by maintaining the precise alignment of the starting motor. This alignment is necessary for the motor to engage the flywheel or flexplate effectively, ensuring that the engine starts smoothly and reliably. Additionally, the spacer helps in distributing the load evenly across the mounting points, which can contribute to the longevity and performance of the starting motor ³.

Key Features

The Cummins 3415518 Starting Motor Spacer is constructed from high-quality materials that offer durability and resistance to wear. Its design specifications are tailored to meet the demanding requirements of commercial truck engines. Unique attributes of this spacer may include specific dimensions that ensure a perfect fit, as well as features that enhance its performance under high stress and temperature conditions ⁴.

Benefits

The use of the Cummins 3415518 Starting Motor Spacer can lead to improved starting motor efficiency, as it ensures that the motor is properly aligned and operates within its designed parameters. This can result in enhanced durability of the starting system components and may contribute to overall engine performance by facilitating reliable starts, even in challenging conditions.

Installation and Usage

Proper installation of the Cummins 3415518 Starting Motor Spacer is important to ensure optimal performance and longevity. It should be installed according to the manufacturer’s guidelines, which may include specific torque settings for the fasteners and checks for proper alignment. Care should be taken to ensure that all mating surfaces are clean and free from debris to prevent any issues during operation.

Troubleshooting and Maintenance

Common issues with starting motor spacers can include misalignment or wear, which may lead to starting difficulties or increased wear on the starting motor. Regular maintenance checks can help identify these issues early. Signs of wear or failure, such as unusual noises during starting or difficulty in engaging the starter, may indicate the need for replacement. Keeping the spacer and surrounding components clean and well-lubricated can also contribute to its longevity.

Compatibility and Application

The Cummins 3415518 Starting Motor Spacer is designed for use in specific types of trucks and engines. It is important to verify compatibility with the particular make and model of the vehicle to ensure proper fit and function.

Manufacturer Information - Cummins

Cummins is a well-established manufacturer with a strong reputation in the industry for producing high-quality automotive components. Their commitment to innovation and quality is evident in the design and performance of their products, including the Cummins 3415518 Starting Motor Spacer.

Compatibility of Cummins Part 3415518 with Various Engine Models

The Cummins part 3415518, a Starting Motor Spacer, is designed to fit seamlessly with a range of Cummins engine models. This component is crucial for ensuring the proper alignment and functionality of the starting motor, which is essential for the engine’s startup process.

Compatibility with Specific Engine Models

• 6C8.3: The Starting Motor Spacer is compatible with the 6C8.3 engine, ensuring that the starting motor is correctly positioned for efficient operation.
• ISL9 CM2150 SN, ISL9.5 CM2880 L138, QSC8.3 CM2880 C102, QSL8.9 CM2150 L141, QSL9 CM850(CM2850), QSL9.3 CM2880 L113: These engines, which include the ISL9, ISL9.5, QSC8.3, QSL8.9, QSL9, and QSL9.3 series, all benefit from the precise fit of the 3415518 Starting Motor Spacer. This ensures that the starting motor operates within the optimal parameters, enhancing reliability and performance.
• L8.9, L8.9 CM2670 L134C, L9.3 L105, L9.5 L117: The Starting Motor Spacer is also compatible with the L8.9, L9.3, and L9.5 engines. This compatibility is vital for maintaining the structural integrity and operational efficiency of these engines.

Grouping of Compatible Engines

The compatibility of the 3415518 Starting Motor Spacer can be grouped based on the engine series:

• ISL Series: ISL9 CM2150 SN, ISL9.5 CM2880 L138
• QSC Series: QSC8.3 CM2880 C102
• QSL Series: QSL8.9 CM2150 L141, QSL9 CM850(CM2850), QSL9.3 CM2880 L113
• L Series: L8.9, L8.9 CM2670 L134C, L9.3 L105, L9.5 L117

By grouping these engines, it becomes clear that the 3415518 Starting Motor Spacer is a versatile component that supports a wide range of Cummins engine models, ensuring that the starting motor is properly aligned and functions effectively across different engine types.

Role of Part 3415518 Starting Motor Spacer in Engine Systems

The Part 3415518 Starting Motor Spacer is an essential component in the assembly and operation of engine systems, particularly in ensuring the proper alignment and functionality of the starting motor.

When integrating the Starting Motor Spacer into an engine system, it is positioned between the Starting Motor and its Mounting bracket. This spacer plays a significant role in maintaining the correct distance and alignment between the Starting Motor and the engine’s flywheel or ring gear.

The Starting Motor Spacer ensures that the Starting Motor is securely attached to the Mounting bracket, which in turn is fastened to the engine block or transmission housing. This secure attachment is vital for the Starting Motor to deliver the necessary torque to crank the engine during startup.

Moreover, the spacer helps in absorbing any vibrations or shocks that occur during the starting process, thereby protecting the Starting Motor from potential damage. It also aids in the precise alignment of the Starting Motor’s pinion gear with the flywheel or ring gear, ensuring a smooth and efficient engagement.

In summary, the Part 3415518 Starting Motor Spacer is a key element in the Starting Motor assembly, contributing to the reliable and efficient operation of the engine system.

Conclusion

The Cummins 3415518 Starting Motor Spacer is a critical component in the starting systems of commercial trucks, ensuring the proper alignment and operation of the starting motor. Its high-quality construction, precise fit, and compatibility with a range of Cummins engine models make it an essential part for maintaining engine reliability and performance.