3047991
Injector
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$889.95 $1,059.04

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 3047991 Injector is a specialized component designed for use in commercial trucks. Its purpose is to deliver precise amounts of fuel into the engine’s combustion chamber, ensuring efficient and effective operation. The significance of this injector lies in its ability to enhance the overall performance and efficiency of the truck’s engine, contributing to better fuel economy and reduced emissions 4.

Basic Concepts of Fuel Injectors

Fuel injectors are components that deliver fuel into an engine’s combustion chamber. They operate by atomizing fuel into a fine mist, which mixes with air before ignition. This process is vital for the combustion process, as it ensures that the fuel burns efficiently, producing the necessary power to drive the engine. The precision of fuel delivery directly impacts engine performance, fuel efficiency, and emissions 1.

Role of the 3047991 Injector in Truck Operation

The Cummins 3047991 Injector plays a specific role in the operation of a truck by ensuring accurate fuel delivery and enhancing combustion efficiency. It is designed to work within the truck’s engine system to provide consistent and reliable fuel atomization. This results in an optimal fuel-air mixture, which is crucial for maintaining engine performance under various operating conditions 2.

Key Features of the 3047991 Injector

The primary features of the Cummins 3047991 Injector include its robust design, high-quality materials, and advanced technological enhancements. The injector is constructed to withstand the demanding conditions of commercial truck operation, ensuring durability and reliability. Technological advancements such as precise fuel metering and improved spray patterns contribute to its enhanced performance 3.

Benefits of Using the 3047991 Injector

The advantages provided by the Cummins 3047991 Injector include improved fuel efficiency, enhanced engine performance, and reduced emissions. By ensuring precise fuel delivery, the injector helps to optimize the combustion process, leading to better fuel economy. Additionally, the efficient burning of fuel results in lower emissions, contributing to environmental compliance and reduced environmental impact 4.

Installation and Integration

Proper installation and integration of the Cummins 3047991 Injector into a truck’s engine system require careful consideration of several factors. This includes ensuring that the injector is compatible with the engine’s specifications and that all necessary preparations are made. Following manufacturer guidelines during installation helps to ensure that the injector functions correctly within the engine system 1.

Maintenance and Troubleshooting

Maintaining the Cummins 3047991 Injector is vital for ensuring optimal performance. Regular inspection routines, cleaning procedures, and addressing common issues promptly are recommended. This includes checking for leaks, ensuring proper fuel flow, and cleaning the injector to prevent buildup that could affect performance. Troubleshooting common issues such as misfires or irregular fuel delivery can often be resolved through proper maintenance practices 2.

Performance Enhancements

The Cummins 3047991 Injector contributes to overall engine performance by enhancing power output, fuel economy, and durability. Its precise fuel delivery ensures that the engine operates efficiently, leading to improved performance under various conditions. The injector’s design and technological features play a role in achieving these performance enhancements 3.

Environmental Impact

The use of the Cummins 3047991 Injector offers environmental benefits, such as reduced emissions. By ensuring efficient fuel combustion, the injector helps trucks comply with environmental regulations. This contributes to lower emissions of harmful pollutants, supporting efforts to reduce the environmental impact of commercial vehicles 4.

Cummins Corporation Overview

Cummins Inc. is a leading manufacturer in the automotive industry, known for its commitment to innovation and quality. With a rich history of producing reliable and high-performance engines and components, Cummins continues to advance technology in the field. The company’s product range includes a variety of engines, filtration systems, and components designed to meet the needs of commercial and industrial applications.

Cummins Injector 3047991 Compatibility with NH/NT 855 Engines

The Cummins injector part number 3047991 is specifically designed to fit seamlessly within the NH/NT 855 engine series. This injector is engineered to meet the stringent performance and durability requirements of these engines, ensuring optimal fuel delivery and combustion efficiency.

In the NH/NT 855 engines, the injector plays a critical role in the fuel injection system, delivering precise amounts of fuel into the combustion chamber at the correct timing. This ensures that the engine operates smoothly and efficiently, maintaining power output and minimizing emissions.

The compatibility of the injector with the NH/NT 855 engines is achieved through precise engineering and adherence to Cummins’ high-quality standards. This ensures that the injector fits perfectly within the engine’s fuel injection system, providing reliable performance over time.

For technicians and maintenance professionals, understanding the compatibility of the injector with the NH/NT 855 engines is crucial for maintaining engine performance and longevity. The injector’s design and fitment are critical to ensuring that the engine operates at its best, and any issues with the injector can lead to performance degradation or failure.

When working with the NH/NT 855 engines, it is important to use the correct injector part number to ensure proper fitment and performance. The Cummins injector part number 3047991 is specifically designed for these engines, providing the reliability and performance needed for optimal engine operation.

Role of Part 3047991 Injector in Engine Systems

The 3047991 injector is an essential component in the efficient operation of modern engine systems. It is responsible for the precise delivery of fuel into the combustion chamber, ensuring optimal performance and efficiency.

Interaction with the Cylinder Head

The 3047991 injector works in close conjunction with the cylinder head. Mounted within or near the cylinder head, the injector sprays fuel directly into the combustion chamber or intake port, depending on the engine design. This precise fuel delivery is vital for maintaining the correct air-fuel mixture, which is necessary for efficient combustion. The cylinder head’s design, including its ports and valves, is engineered to work seamlessly with the injector to ensure that the fuel is distributed evenly and combusts effectively.

Contribution to Performance Parts

Incorporating the 3047991 injector into performance parts enhances the overall efficiency and power output of the engine. Performance-oriented cylinder heads often feature larger valves and more aggressive porting to allow for greater airflow. The 3047991 injector complements these modifications by providing the necessary fuel to match the increased air intake. This synergy results in more complete combustion, higher power output, and improved throttle response. Additionally, the injector’s ability to deliver fuel with high precision reduces the likelihood of detonation, a common issue in high-performance engines.

The 3047991 injector’s role in these components underscores its importance in both standard and performance-enhanced engine systems. Its precise fuel delivery capabilities are integral to achieving the desired balance between power, efficiency, and reliability.

Conclusion

The Cummins 3047991 Injector is a critical component in the operation of commercial trucks, offering significant benefits in terms of fuel efficiency, engine performance, and reduced emissions. Its precise fuel delivery capabilities ensure optimal combustion, contributing to better fuel economy and environmental compliance. Proper installation, maintenance, and understanding of its role within the engine system are essential for maximizing the benefits of this Cummins part.


  1. Williams, Daniel. Generalized Vehicle Dynamics. SAE International, 2022.

  2. Isermann, Rolf. Combustion Engine Diagnosis. Springer Vieweg, 2017.

  3. Maclaurin, Bruce. High Speed Off-Road Vehicles. Wiley, 2018.

  4. Minaker, Bruce P. Fundamentals of Vehicle Dynamics and Modelling. John Wiley Sons, 2019.

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SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Comments
Recon equivalent 3047991 PX
Package Dimensions
6.5 x 2.0 x 2.0 in
Weight
1.42 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.