2871258
Starting Motor
Cummins®

Introduction

The Cummins 2871258 Starting Motor is a component designed for use in commercial trucks. Its purpose is to facilitate the initial rotation of the engine, allowing for the start-up process. This motor is significant in ensuring that trucks can operate reliably and efficiently, playing a key role in the overall functionality of the vehicle ¹.

Basic Concepts of Starting Motors

Starting motors are integral to the operation of internal combustion engines. They function by converting electrical energy into mechanical energy, which is used to rotate the engine’s crankshaft. This rotation is necessary to initiate the combustion process within the engine cylinders. The basic components of a starting motor include the armature, field coils, commutator, and brushes, all of which work together to produce the necessary torque for engine start-up ¹.

Purpose of the Cummins 2871258 Starting Motor

The Cummins 2871258 Starting Motor is specifically designed to initiate engine start-up in commercial trucks. It ensures that the engine can be reliably started under various conditions, contributing to the overall performance and reliability of the vehicle. By providing the necessary torque to rotate the engine’s crankshaft, this starting motor enables the combustion process to begin, allowing the truck to operate ¹.

Key Features

The Cummins 2871258 Starting Motor is characterized by its robust design and construction. It is built using high-quality materials that enhance its durability and performance. Key features include a heavy-duty armature, precision-machined commutator, and durable field coils. These attributes contribute to the motor’s ability to withstand the demanding conditions of commercial truck operation ¹.

Benefits

The Cummins 2871258 Starting Motor offers several advantages. It provides improved starting reliability, ensuring that the engine can be started consistently under various conditions. Its durable construction contributes to enhanced longevity, reducing the need for frequent replacements. Additionally, the efficient design of the motor may contribute to potential fuel efficiency gains by ensuring smooth and reliable engine start-ups ¹.

Installation and Integration

Proper installation of the Cummins 2871258 Starting Motor is crucial for ensuring compatibility and optimal performance. Guidelines for installation include verifying fitment with the specific truck model, securing the motor in place, and ensuring all electrical connections are properly made. Compatibility considerations should be taken into account to ensure seamless integration with the truck’s electrical system ¹.

Troubleshooting Common Issues

Common issues associated with starting motors may include difficulty starting the engine, unusual noises during operation, or a complete failure to start. Troubleshooting steps may involve checking electrical connections, inspecting the motor for signs of wear or damage, and testing the battery to ensure it is providing adequate power. Solutions may range from cleaning and tightening connections to replacing worn components ¹.

Maintenance Tips

Routine maintenance practices are important for ensuring the longevity and optimal performance of the Cummins 2871258 Starting Motor. Recommendations include regular inspection for signs of wear or damage, cleaning the motor to remove any dirt or debris, and lubricating moving parts to reduce friction. These practices help to maintain the motor’s efficiency and reliability over time ¹.

Cummins Overview

Cummins Inc. is a well-established company in the automotive industry, known for its commitment to innovation and quality in manufacturing automotive components. With a history of producing reliable and high-performance parts, Cummins has built a reputation for excellence. The company’s dedication to advancing technology and improving product quality underscores its position as a leader in the industry ².

Compatibility of Cummins Part 2871258 with Various Engine Models

The Cummins part 2871258, identified as a Starting Motor, is designed to be compatible with a range of engine models. This part is integral to the starting system of the engines, ensuring reliable and efficient engine startups. Below is a detailed breakdown of the engine models with which this starting motor is compatible:

ISM Series

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

The ISM series engines, particularly those listed above, benefit from the robust design of the Cummins part 2871258. This starting motor is engineered to handle the specific demands of these engines, ensuring smooth and reliable operation.

ISX Series

• ISX CM570
• ISX CM870
• ISX CM871
• ISX15 CM2250

The ISX series engines, including the models listed, are equipped with the Cummins part 2871258. This starting motor is designed to provide the necessary power and efficiency for these engines, ensuring they start quickly and reliably under various conditions.

M11 Series

• M11 CELECT PLUS

The M11 CELECT PLUS engine is another model that is compatible with the Cummins part 2871258. This starting motor is tailored to meet the specific requirements of this engine, ensuring optimal performance and reliability.

QSX Series

• QSX15 CM2250 ECF
• QSX15 CM2350 X105

The QSX series engines, including the QSX15 CM2250 ECF and QSX15 CM2350 X105, are also compatible with the Cummins part 2871258. This starting motor is designed to provide the necessary power and efficiency for these engines, ensuring they start quickly and reliably under various conditions.

By ensuring compatibility with these diverse engine models, the Cummins part 2871258 offers a versatile solution for starting motor needs across various engine types ².

Role of Part 2871258 Starting Motor in Engine Systems

The part 2871258 starting motor is integral to the operation of various engine systems, facilitating the initial rotation of the engine to start the combustion process. When the ignition is engaged, the starting motor draws electrical power from the battery, converting it into mechanical energy. This energy is then transferred through the starter solenoid, which engages the starter gear with the flywheel.

As the starting motor rotates, it drives the flywheel, which in turn rotates the crankshaft. This rotation compresses the air-fuel mixture within the cylinders, allowing the spark plugs to ignite it. The resulting combustion pushes the pistons downward, creating the power stroke that propels the vehicle.

In addition to its primary function, the starting motor interacts with several other components to ensure smooth operation. The starter solenoid acts as a switch, controlling the flow of current to the starting motor. The flywheel, connected to the crankshaft, ensures that the engine’s rotational momentum is maintained during startup. The battery provides the necessary electrical energy, while the ignition system times the spark to coincide with the compression stroke.

The starting motor’s efficiency is also influenced by the condition of the engine’s lubrication system. Proper lubrication reduces friction, allowing the starting motor to operate more effectively. Furthermore, the cooling system plays a role in maintaining optimal operating temperatures, preventing overheating that could impair the starting motor’s performance.

In summary, part 2871258 starting motor is a key component in the engine’s startup sequence, working in concert with the battery, solenoid, flywheel, crankshaft, ignition system, lubrication system, and cooling system to ensure reliable engine operation ².

Conclusion

The Cummins 2871258 Starting Motor is a critical component in the operation of commercial trucks, ensuring reliable and efficient engine start-ups. Its robust design, compatibility with various engine models, and integration with other engine systems highlight its importance in maintaining vehicle performance and reliability. Proper installation, maintenance, and troubleshooting are essential for maximizing the benefits of this starting motor.