4948924
Spark Plug Wire
Cummins®

The Cummins 4948924 Spark Plug Wire is a component designed for use in heavy-duty trucks. Its purpose is to facilitate the transfer of electrical energy from the ignition system to the spark plugs, thereby enabling the combustion process within the engine cylinders. This component plays a role in ensuring that the engine operates efficiently and reliably under the demanding conditions typical of heavy-duty truck applications ¹.

Basic Concepts of Spark Plug Wires

Spark plug wires are integral to an engine’s ignition system. They serve as conduits for high-voltage electricity, transferring it from the distributor or ignition coil to the spark plugs. This electrical energy is necessary for creating the spark that ignites the air-fuel mixture in the combustion chamber, thus driving the engine’s operation. The proper function of spark plug wires is vital for maintaining engine performance, fuel efficiency, and emissions control ².

Role of the 4948924 Spark Plug Wire in Truck Operation

The Cummins 4948924 Spark Plug Wire contributes to the ignition process in heavy-duty trucks by providing a reliable pathway for electrical energy. It connects to the spark plugs on one end and to the distributor or ignition coil on the other, ensuring that each cylinder receives the precise amount of electrical energy needed for combustion at the correct moment. This timing is crucial for the engine’s efficiency and power output ³.

Key Features

The Cummins 4948924 Spark Plug Wire is constructed with materials and design characteristics that enhance its performance and durability. It features high-quality insulation to prevent electrical leakage and ensure efficient energy transfer. The wire’s design also includes resistance to the high temperatures and vibrations encountered in heavy-duty truck engines, contributing to its longevity and reliability under demanding conditions.

Benefits

The advantages provided by the Cummins 4948924 Spark Plug Wire include improved engine efficiency, reliable ignition, and longevity. Its high-quality construction and design characteristics ensure that it can withstand the rigors of heavy-duty truck operations, providing consistent performance over time. This reliability is particularly important in applications where engine downtime can have significant operational and financial impacts.

Troubleshooting and Maintenance

Common issues that may arise with spark plug wires include electrical leakage, wear, and damage from heat or vibration. Diagnostic tips for identifying problems with spark plug wires include checking for signs of wear or damage, testing for electrical continuity, and observing engine performance for symptoms such as misfires or reduced power. Maintenance practices to ensure optimal performance and longevity of the 4948924 Spark Plug Wire include regular inspection for wear or damage, ensuring proper installation, and replacing the wire as part of routine engine maintenance or when signs of failure are detected.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a full line of power generation and related technologies. With a history spanning over a century, Cummins has established itself as an expert in diesel engine manufacturing and a provider of high-quality components for the automotive industry. The company’s commitment to innovation, quality, and customer satisfaction is evident in its wide range of products, including the Cummins 4948924 Spark Plug Wire, designed to meet the demanding requirements of heavy-duty truck applications.

Spark Plug Wire 4948924 Compatibility with Cummins Engines

The Cummins Spark Plug Wire part number 4948924 is designed to fit seamlessly with several of Cummins’ engine models. This part is crucial for ensuring reliable electrical connections between the spark plugs and the ignition system, thereby maintaining optimal engine performance.

G855 Series

The G855 engine series, including variants such as the G855 CM558 and GTA855 CM558 (CM2358), are compatible with the 4948924 spark plug wire. These engines are known for their robust construction and efficiency, often used in heavy-duty applications. The spark plug wire ensures that the ignition system functions correctly, providing the necessary spark for combustion in these engines.

G101 Series

The G101 engine model is another variant that benefits from the 4948924 spark plug wire. This engine is designed for high performance and reliability, making it suitable for various industrial and commercial applications. The spark plug wire is engineered to withstand the demands of these engines, ensuring consistent and reliable performance.

N14 Series

The N14 G engine is also compatible with the 4948924 spark plug wire. This engine is renowned for its durability and power, often used in heavy-duty trucks and machinery. The spark plug wire is a critical component in this engine, ensuring that the ignition system operates efficiently and reliably under demanding conditions.

Role of Part 4948924 Spark Plug Wire in Engine Systems

In the context of engine systems, the 4948924 Spark Plug Wire is an integral component that facilitates the transfer of electrical energy from the ignition system to the spark plugs. This transfer is essential for the combustion process within the engine.

When the ignition system generates a high-voltage electrical pulse, the 4948924 Spark Plug Wire conducts this pulse to the spark plugs. The spark plugs then create a spark that ignites the air-fuel mixture in the combustion chamber. This ignition is what powers the engine, making the spark plug wire a key element in the engine’s operation.

The efficiency and reliability of the 4948924 Spark Plug Wire directly influence the performance of the ignition system. A well-functioning wire ensures that the spark plugs receive the necessary voltage at the right moment, contributing to smooth engine operation, improved fuel efficiency, and reduced emissions.

Conclusion

In summary, the Cummins Spark Plug Wire part number 4948924 is a versatile and essential component for maintaining the performance of various Cummins engine models, including the G855, G101, and N14 series. Its role in the ignition process ensures the timely and effective delivery of electrical energy to the spark plugs, thereby supporting the overall functionality and performance of the engine system.