4389667
Ignition Coil Extension
Cummins®

AVAILABLE

Cummins®

More than 10 are currently available

Ships within 2-4 business days

$649.95 $773.44

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The 4389667 Ignition Coil Extension is a component designed to enhance the ignition system’s functionality in heavy-duty trucks. This Cummins part ensures efficient spark delivery to the engine cylinders, contributing to the overall performance and reliability of the vehicle. Manufactured by Cummins, a renowned name in the automotive industry, this ignition coil extension is engineered to meet the demanding requirements of heavy-duty applications. Cummins is recognized for its commitment to quality and innovation, providing solutions that enhance the durability and efficiency of heavy-duty trucks 3.

Basic Concepts of Ignition Coil Extension

An ignition coil extension is a component that extends the reach of the ignition coil, allowing it to deliver a spark to the spark plugs located in the engine cylinders. This extension plays a role in the ignition system by ensuring that the spark generated by the ignition coil reaches the spark plugs effectively. Proper spark delivery is vital for the combustion process, which powers the engine. The extension helps maintain the integrity of the spark, reducing the likelihood of misfires and ensuring consistent engine performance 1.

Purpose of the 4389667 Ignition Coil Extension

The 4389667 Ignition Coil Extension is designed to interface with the ignition system of a truck, specifically enhancing the connection between the ignition coil and the spark plugs. By providing a reliable pathway for the spark, this extension contributes to the efficient operation of the engine. It ensures that the spark is delivered with the necessary intensity and timing, which is crucial for optimal combustion and engine performance. This component works in conjunction with other parts of the ignition system to maintain the engine’s reliability and efficiency 2.

Key Features

The 4389667 Ignition Coil Extension boasts several key features that enhance its performance and durability. Its design is tailored to withstand the harsh conditions encountered in heavy-duty truck applications. The materials used in its construction are selected for their resilience and ability to conduct electricity efficiently. Additionally, this extension may include unique attributes such as corrosion-resistant coatings or enhanced insulation, which further contribute to its longevity and performance.

Benefits

The benefits of the 4389667 Ignition Coil Extension include improved engine performance and reliability. By ensuring efficient spark delivery, this component helps maintain consistent engine operation, reducing the likelihood of misfires and enhancing overall performance. It offers advantages over alternative solutions by providing a durable and reliable connection in the ignition system, contributing to the longevity of the engine and the vehicle as a whole.

Installation Considerations

When installing the 4389667 Ignition Coil Extension, it is important to follow guidelines and best practices to ensure proper functionality. Preparatory steps may include inspecting the ignition system for any signs of wear or damage. The tools required for installation typically include basic hand tools for securing the extension in place. Common pitfalls to avoid during installation include improper alignment or insufficient tightening, which could lead to poor performance or damage to the component.

Troubleshooting Common Issues

Common problems associated with ignition coil extensions can include issues with spark delivery, such as misfires or reduced engine performance. Troubleshooting methods may involve inspecting the extension for signs of wear or damage, ensuring proper alignment and connection within the ignition system, and verifying that all components are securely fastened. Addressing these issues promptly can help maintain the efficiency and reliability of the engine.

Maintenance Tips

Regular maintenance of the 4389667 Ignition Coil Extension is important to ensure its longevity and optimal performance. This may include periodic inspection for signs of wear or damage, cleaning the component to remove any buildup that could affect its functionality, and ensuring that all connections are secure. Following manufacturer recommendations for inspection intervals and maintenance procedures can help prevent issues and extend the life of the component.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the heavy-duty truck industry. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of various applications. Cummins’ commitment to quality is evident in its rigorous testing and quality control processes, ensuring that its products deliver reliable performance and durability 3.

Ignition Coil Extension 4389667 Compatibility with Cummins Engines

The Ignition Coil Extension part number 4389667, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This part is integral to the proper functioning of the ignition system, ensuring reliable and efficient engine performance.

QSV91-G4 CM558/CM700 V102

The 4389667 Ignition Coil Extension is compatible with the QSV91-G4 CM558/CM700 V102 engines. This compatibility ensures that the ignition coil can effectively interface with the engine’s electrical system, providing the necessary spark for combustion. The design of the extension allows for precise alignment and secure attachment, which is crucial for maintaining the integrity of the ignition system.

QSV91G

Similarly, the 4389667 Ignition Coil Extension is also compatible with the QSV91G engine. This part ensures that the ignition coil can be properly connected to the engine’s ignition system, facilitating the spark generation required for engine operation. The extension’s design is tailored to fit the specific requirements of the QSV91G engine, ensuring a reliable and durable connection.

By ensuring compatibility with these engines, the 4389667 Ignition Coil Extension from Cummins plays a critical role in maintaining the performance and reliability of the engine’s ignition system.

Role of Part 4389667 Ignition Coil Extension in Engine Systems

The part 4389667 Ignition Coil Extension is an essential component in the ignition system of an engine, facilitating the efficient transfer of high-voltage current from the ignition coil to the spark plugs. This extension ensures that the spark plugs receive the necessary voltage to ignite the air-fuel mixture within the combustion chamber, thereby contributing to the engine’s overall performance and efficiency.

When integrated into the ignition system, the 4389667 Ignition Coil Extension connects directly to the ignition coil. The ignition coil, a transformer that steps up the battery’s low voltage to the high voltage needed by the spark plugs, relies on this extension to maintain a secure and consistent electrical connection. This is particularly important in engines where the ignition coil is not positioned in close proximity to the spark plugs, necessitating an extension to bridge the gap.

The extension also plays a role in reducing electrical resistance and minimizing energy loss during the transfer of high voltage. By providing a direct and efficient pathway for the electrical current, the 4389667 Ignition Coil Extension helps ensure that the spark plugs fire at the optimal moment, which is vital for maintaining the engine’s timing and combustion efficiency.

Furthermore, the integration of this extension into the ignition system allows for greater flexibility in engine design. Engineers and mechanics can position the ignition coil in a location that offers better thermal management or easier access for maintenance, without compromising the performance of the ignition system. This adaptability is particularly beneficial in modern engine designs, where space and thermal considerations are paramount.

In summary, the 4389667 Ignition Coil Extension is a key component that enhances the functionality and reliability of the ignition system. Its role in ensuring a robust and efficient electrical connection between the ignition coil and the spark plugs is fundamental to the engine’s operation, contributing to smooth and consistent combustion, and ultimately, to the engine’s performance and durability.

Conclusion

The 4389667 Ignition Coil Extension is a vital component in the ignition system of heavy-duty trucks, ensuring efficient spark delivery and contributing to the engine’s performance and reliability. Manufactured by Cummins, this part is designed to withstand the demanding conditions of heavy-duty applications, offering durability and efficiency. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part, ensuring long-term engine performance and reliability.


  1. Nigel Calder, Diesel Engine Care and Repair, The McGraw-Hill Companies, 2007.

  2. Cummins Inc., Fault Code Troubleshooting Manual, Bulletin Number 5579808, ISL9 CM2250.

  3. Qianfan Xin, Diesel Engine System Design, Woodhead Publishing Limited, 2011.

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SPECIFICATIONS

Package Dimensions
33.0 x 4.0 x 4.0 in
Weight
0.163 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.