4989773
Fuel Connector Adapter
Cummins®

AVAILABLE

Cummins®

1 is currently available

Ships within 2-4 business days

$119.95 $142.74

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 Cummins 4989773 Fuel Connector Adapter is a specialized component designed for use in the fuel systems of commercial trucks. Its purpose is to facilitate a secure and efficient connection between different parts of the fuel system, ensuring optimal performance and reliability. This adapter is significant in the operation of commercial trucks as it plays a key role in maintaining the integrity of the fuel delivery system.

Basic Concepts of Fuel Connector Adapters

A Fuel Connector Adapter serves as an intermediary component in fuel systems, allowing for the connection of various fuel system components that may have different fittings or sizes. Its general function is to ensure a seamless transition between these components, maintaining the flow of fuel without leaks or disruptions. By providing a reliable connection, it helps in the efficient operation of the fuel system 1.

Purpose of the Cummins 4989773 Fuel Connector Adapter

The Cummins 4989773 Fuel Connector Adapter is specifically designed to play a role in the fuel system of a truck by ensuring a secure and efficient connection between the fuel tank and the fuel lines or other components. This adapter helps in maintaining the pressure and flow of fuel, which is vital for the engine’s performance. It is engineered to withstand the demands of commercial truck operations, providing a durable and reliable connection 2.

Key Features

The Cummins 4989773 Fuel Connector Adapter is characterized by its robust design and the use of high-quality materials. It is constructed to endure the harsh conditions often encountered in commercial trucking, ensuring longevity and reliability. Unique attributes of this adapter include its precision engineering, which allows for a snug fit and secure connection, and its resistance to corrosion and wear, enhancing its performance and durability over time 3.

Benefits of Using the Cummins 4989773 Fuel Connector Adapter

Utilizing the Cummins 4989773 Fuel Connector Adapter offers several advantages. It contributes to improved fuel efficiency by ensuring a leak-free connection, which prevents fuel loss and maintains system pressure. Additionally, the adapter reduces the risk of leaks, which can be hazardous and lead to system downtime. Its reliable performance enhances the overall reliability of the fuel system, contributing to the truck’s operational efficiency.

Installation and Compatibility

Proper installation of the Cummins 4989773 Fuel Connector Adapter is crucial for its effective function. It is designed to be compatible with a range of truck models and fuel systems, ensuring versatility in its application. Installation procedures should follow manufacturer guidelines to ensure a secure fit and optimal performance. Compatibility with various systems allows for its use across different commercial truck fleets.

Maintenance and Troubleshooting

Maintaining the Cummins 4989773 Fuel Connector Adapter involves regular inspection for signs of wear or damage. Common issues may include leaks or a loose connection, which can often be addressed through re-tightening or replacing worn components. Troubleshooting tips include checking for proper installation and ensuring that all connections are secure. Regular maintenance helps in identifying potential issues before they lead to system failure.

Safety Considerations

When working with the Cummins 4989773 Fuel Connector Adapter, it is important to observe safety practices and precautions. This includes ensuring that the fuel system is depressurized before making any connections or disconnections to prevent fuel spray. Proper handling and maintenance of the adapter are crucial to avoid leaks and ensure safe operation. Adhering to safety guidelines helps in maintaining a safe working environment.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. Its product range includes a variety of components and systems designed to enhance the performance and reliability of commercial vehicles. Cummins’ commitment to quality and customer satisfaction has made it a trusted name in the industry.

Cummins Fuel Connector Adapter 4989773 Compatibility

The Cummins Fuel Connector Adapter part number 4989773 is designed to fit a variety of Cummins engines, ensuring seamless integration and functionality. Here is a detailed look at the compatibility of this part with different Cummins engine models:

B6.7 CM2670 B153B

The B6.7 CM2670 B153B engine benefits from the 4989773 adapter, which is engineered to provide a precise fit and reliable performance. This adapter is crucial for maintaining the integrity of the fuel system, ensuring that the engine operates at optimal efficiency.

ISB/ISD4.5 CM2150 B119

For the ISB/ISD4.5 CM2150 B119 engines, the 4989773 adapter is specifically tailored to fit the unique design of these models. This ensures that the fuel system components are securely connected, reducing the risk of leaks and enhancing overall engine performance.

ISB/ISD6.7 CM2150 SN

The ISB/ISD6.7 CM2150 SN engines also utilize the 4989773 adapter. This part is designed to integrate smoothly with the engine’s fuel system, providing a dependable connection that supports the engine’s operational demands.

ISBE CM2150 and ISBE4 CM850

Both the ISBE CM2150 and ISBE4 CM850 engines are compatible with the 4989773 adapter. This adapter is crafted to ensure a secure and efficient fuel connection, which is essential for the smooth operation of these engines.

QSB4.5 CM850 (CM2850), QSB6.7 CM850 (CM2850), and QSB7 CM2880 B117

The 4989773 adapter is also suitable for the QSB4.5 CM850 (CM2850), QSB6.7 CM850 (CM2850), and QSB7 CM2880 B117 engines. This adapter is designed to fit these engines precisely, ensuring that the fuel system components are properly connected and that the engine performs reliably.

Each of these engines relies on the 4989773 adapter to maintain a secure and efficient fuel connection, which is vital for their overall performance and longevity.

Role of Part 4989773 Fuel Connector Adapter in Engine Systems

The part 4989773 Fuel Connector Adapter is an essential component in the fuel delivery system of various engine setups. It serves as the intermediary link between the fuel pump and the fuel rail, ensuring a secure and leak-free connection. This adapter is designed to facilitate the smooth transfer of fuel from the pump to the injectors, maintaining the integrity of the fuel line.

In the context of fuel system components, the adapter works in conjunction with the fuel pump, which pressurizes the fuel, and the fuel rail, which distributes the fuel to the injectors. The adapter’s role is to provide a reliable connection point that can withstand the pressures and temperatures within the fuel system.

When considering the plumbing aspect, the Fuel Connector Adapter ensures that the fuel lines are properly sealed and routed. This is important for preventing fuel leaks, which can be hazardous, and for maintaining the efficiency of the fuel delivery system. The adapter must be compatible with the specific diameters and types of fuel lines used in the engine system to ensure a proper fit and function.

Overall, the 4989773 Fuel Connector Adapter is a key component that contributes to the safe and efficient operation of the fuel system in engine applications. Its proper installation and maintenance are important for the overall performance and reliability of the engine.

Conclusion

The Cummins 4989773 Fuel Connector Adapter is a critical component in the fuel systems of commercial trucks, ensuring secure and efficient connections between various fuel system components. Its robust design, compatibility with a range of Cummins engines, and the benefits it offers in terms of fuel efficiency and system reliability make it an indispensable part of the fuel delivery system. Proper installation, maintenance, and adherence to safety practices are essential for maximizing the performance and longevity of this Cummins part.


  1. Boger, Thorsten, and Willard Cutler. Reducing Particulate Emissions in Gasoline Engines. SAE International, 2018.

  2. Reif, Konrad. Automotive Mechatronics. Springer Vieweg, 2015.

  3. Sobey, Ed. A Field Guide to Automotive Technology. Chicago Review Press, 2009.

SPECIFICATIONS

Package Dimensions
20.5 x 10.2 x 6.4 in
Weight
0.381 lb

BILL OF MATERIALS

Name Quantity Part Number
Quick Disconnect Connector
Fuel Connector Adapter
Quick Disconnect Connector
* 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.