3657722
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Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$6.49 $7.72

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

Introduction

The Cummins 3657722 Cavity Plug is a component designed for use in heavy-duty trucks. Its purpose is to seal specific openings within the engine or other machinery components, thereby contributing to the overall integrity and performance of the vehicle. Understanding the role and significance of this cavity plug is important for maintaining and operating heavy-duty trucks effectively.

Basic Concepts of Cavity Plugs

Cavity plugs are small yet vital components used across various types of machinery. Their general function is to seal openings, preventing the ingress of contaminants such as dirt, moisture, and debris, which could otherwise compromise the performance and longevity of mechanical systems. By maintaining a clean and sealed environment, cavity plugs help ensure the efficient operation of machinery 1.

Purpose of the Cummins 3657722 Cavity Plug

The Cummins 3657722 Cavity Plug is specifically designed to fulfill a sealing role within the engine or other components of a truck. It ensures that openings are properly closed, which helps maintain the engine’s internal environment. This, in turn, contributes to the engine’s overall performance and durability by preventing contaminants from entering sensitive areas 2.

Key Features

The Cummins 3657722 Cavity Plug is characterized by several key features that enhance its performance and durability. These include a robust material composition that resists wear and corrosion, a design that ensures a tight seal, and unique characteristics that make it suitable for heavy-duty applications. These features collectively contribute to the plug’s effectiveness in sealing and protecting engine components 3.

Benefits of Using the Cummins 3657722 Cavity Plug

Utilizing the Cummins 3657722 Cavity Plug offers several advantages. It contributes to improved engine performance by maintaining a clean internal environment. Additionally, its durable construction promotes longevity, reducing the frequency of replacements. For fleet operators, this can translate into cost savings over time, as well as enhanced reliability and uptime for their vehicles.

Installation Process

Proper installation of the Cummins 3657722 Cavity Plug involves several steps to ensure it functions correctly. The process includes cleaning the area where the plug will be installed, inserting the plug into the designated opening, and securing it in place. Specific tools may be required, and it is important to follow manufacturer guidelines to avoid damage to the plug or surrounding components.

Troubleshooting Common Issues

Common problems associated with cavity plugs can include improper sealing, damage to the plug, or difficulties during installation. Troubleshooting steps may involve inspecting the plug for signs of wear or damage, ensuring it is correctly seated, and addressing any issues that may prevent a proper seal. Solutions can range from simple adjustments to replacement of the plug if necessary.

Maintenance Tips

Regular maintenance of the Cummins 3657722 Cavity Plug is important to ensure optimal performance and longevity. This includes periodic inspection for signs of wear or damage, cleaning the plug and surrounding areas to remove any contaminants, and ensuring it remains securely in place. Adhering to recommended inspection intervals and maintenance procedures can help prevent issues and extend the life of the plug.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions technologies. With a strong reputation in the automotive and heavy-duty truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and expertise make it a trusted partner for fleet operators and machinery manufacturers alike.

Compatibility with Cummins Engines

This part ensures the integrity of the engine’s internal structure by preventing unwanted fluid leakage and maintaining optimal pressure within the engine’s cavities.

G8.3 Series

This part is compatible with the G8.3 engine, ensuring a secure fit and reliable performance.

G8.3 CM558 Series

This part is also designed to fit the G8.3 CM558 engine. This compatibility ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

G855 CM558 Series

Similarly, this part is compatible with the G855 CM558 engine. This ensures that the engine operates smoothly and efficiently, with the plug playing a crucial role in maintaining internal pressure and preventing leaks.

GTA38 G CMEICS G116C Series

This part is engineered to fit the GTA38 G CMEICS G116C engine. This compatibility is vital for ensuring the engine’s structural integrity and operational efficiency.

GTA8.3 CM558 Series

This part is also compatible with the GTA8.3 CM558 engine. This ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

ISF3.8 CM2220 Series

This part is designed to fit the ISF3.8 CM2220 engine, whether it is the AN or F103 variant. This compatibility ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

QSG12/X12 CM2350 G110 Series

This part is compatible with the QSG12/X12 CM2350 G110 engine. This ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

QSK19 CM850 MCRS Series

This part is designed to fit the QSK19 CM850 MCRS engine. This compatibility ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

QSK50 Series

This part is compatible with both the QSK50 CM2150 MCRS and QSK50 CM2350 K108 engines. This ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

QSL9 G CM558 Series

This part is designed to fit the QSL9 G CM558 engine. This compatibility ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

X12N CMMDG1 X143B Series

This part is compatible with the X12N CMMDG1 X143B engine. This ensures that the plug maintains the necessary pressure and prevents any fluid leakage, contributing to the engine’s overall performance.

Role in Engine Systems

This Cummins part is an essential component in various engine systems, ensuring the integrity and efficiency of several critical functions.

Compressor Coolant Arrangement

In the compressor coolant arrangement, the cavity plug helps maintain the structural integrity of the coolant passages. It prevents coolant leaks and ensures that the coolant flows efficiently through the system, which is vital for maintaining optimal compressor temperature and performance.

Compressor Coolant Plumbing

Within the compressor coolant plumbing, the cavity plug seals off unused or redundant passages. This ensures that the coolant circulates only through the necessary channels, enhancing the efficiency of the cooling system and reducing the risk of leaks.

Compressor Water Inlet Tube

The cavity plug plays a role in the compressor water inlet tube by sealing any unnecessary openings. This ensures that water enters the system at the correct points, maintaining the intended flow and pressure, which is essential for effective compressor operation.

Electronic Control Module Wiring Harness

In the electronic control module (ECM) wiring harness, the cavity plug is used to seal off unused connector pins. This prevents moisture and debris from entering the harness, which could otherwise lead to short circuits or corrosion, thereby ensuring the reliability of the ECM.

Engine Control Module

For the engine control module (ECM), the cavity plug is utilized to seal off any unused ports or connectors. This protects the sensitive electronic components from environmental factors, ensuring consistent and accurate engine management.

Fan Drive

In the fan drive system, the cavity plug helps in sealing any unnecessary openings in the housing. This ensures that the fan drive operates efficiently without any unwanted air or fluid ingress, which could affect its performance and longevity.

Fuel Control Module

Within the fuel control module, the cavity plug is employed to seal off any unused fuel passages. This ensures that fuel flows only through the designated channels, maintaining the efficiency and safety of the fuel delivery system.

Fuel Filter

In the fuel filter assembly, the cavity plug is used to seal any redundant openings. This ensures that fuel passes through the filter without any bypass, which is essential for maintaining clean fuel delivery to the engine.

Fuel Governor Arrangement

The cavity plug in the fuel governor arrangement seals off any unnecessary passages, ensuring that fuel is metered and delivered accurately. This is important for maintaining the correct fuel-to-air ratio, which is critical for engine performance and emissions control.

Ignition System

In the ignition system, the cavity plug is used to seal off any unused terminals or passages. This ensures that electrical signals are transmitted accurately and without interference, which is vital for reliable ignition timing and engine start-up.

Ignition System Arrangement

Within the ignition system arrangement, the cavity plug helps in sealing any redundant components or passages. This ensures that the ignition system operates efficiently, with minimal risk of electrical faults or misfires.

Oil Level Gauge

For the oil level gauge, the cavity plug is used to seal off any unnecessary openings in the gauge housing. This ensures that the gauge provides accurate readings by preventing oil leaks or contamination.

Turbocharger

In the turbocharger, the cavity plug seals off any unused passages or ports. This ensures that the turbocharger operates efficiently, with optimal airflow and pressure, which is essential for maximizing engine performance.

Turbocharger Plumbing

Within the turbocharger plumbing, the cavity plug is used to seal off any redundant lines or fittings. This ensures that the turbocharger system operates with minimal leaks and maximum efficiency, contributing to overall engine performance.

Water Inlet Tube

In the water inlet tube, the cavity plug seals off any unnecessary openings. This ensures that water enters the system at the correct points, maintaining the intended flow and pressure, which is vital for effective engine cooling.

Wiring Accessories

For wiring accessories, the cavity plug is used to seal off any unused terminals or connectors. This protects the wiring from environmental factors, ensuring the reliability and safety of the electrical system.

Wiring Harness

In the wiring harness, the cavity plug seals off any unused pins or connectors. This prevents moisture and debris from entering the harness, which could otherwise lead to short circuits or corrosion, thereby ensuring the integrity of the electrical system.

Conclusion

The Cummins 3657722 Cavity Plug is a critical component in maintaining the integrity and performance of heavy-duty truck engines. Its role in sealing various openings within the engine and other machinery components ensures that contaminants are kept out, thereby enhancing the efficiency and longevity of the vehicle. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engine models are essential for maximizing the benefits of this part.


  1. Huzij, R., Spano, A., & Bennett, S. (2014). Modern Diesel Technology Heavy Equipment Systems. Delmar Cengage Learning.

  2. Garrett, T.K., Newton, K., & Steeds, W. (2001). The Motor Vehicle. Reed Educational and Professional Publishing Ltd.

  3. Hilgers, M. (2023). Entire Vehicle: Second Edition. Springer Nature.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
1.625 x 1.0 x 0.925 in
Weight
0.38 lbs
* 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.