3279819
Injector Plunger Link
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$219.95 $261.74

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

Introduction

The Cummins Injector Plunger Link is a vital component in the operation of diesel engines, especially in commercial trucks. This part ensures the precise interaction between the engine’s camshaft and fuel injectors, facilitating optimal fuel delivery and combustion efficiency. Its use in commercial trucks highlights the necessity for reliable and efficient fuel injection systems in heavy-duty vehicles 1.

Function and Operation

The Injector Plunger Link operates within the fuel injection system by transmitting motion from the camshaft to the fuel injectors. This mechanical linkage ensures that the injectors open and close at the correct moments in the engine cycle. The plunger link interacts with the camshaft lobes, which in turn actuate the injectors, allowing for the timed release of fuel into the engine cylinders 2.

Purpose of the Injector Plunger Link

This Cummins part plays a role in the precise timing and delivery of fuel to the engine cylinders. By ensuring that fuel is injected at the optimal moment, it contributes to efficient combustion, which is vital for engine performance. This precise timing helps in maximizing fuel efficiency and minimizing emissions, aligning with regulatory standards and improving overall engine reliability 3.

Key Features

The design of the Injector Plunger Link incorporates several key features that enhance its functionality and durability. Crafted from high-quality materials, it is engineered to withstand the rigors of diesel engine operation. Precision machining ensures accurate fit and function, while the use of durable materials contributes to its longevity. Compatibility with Cummins engines is ensured through meticulous design and testing 4.

Benefits

The advantages provided by the Injector Plunger Link include improved fuel efficiency, reduced emissions, and enhanced engine reliability. By ensuring precise fuel delivery, it helps in optimizing combustion, which leads to better fuel economy. Additionally, the reduction in emissions contributes to environmental compliance and sustainability. The robust design of the link also enhances the overall reliability of the engine, reducing the likelihood of mechanical failures 5.

Troubleshooting and Maintenance

Common issues associated with the Injector Plunger Link may include wear and tear, misalignment, or failure due to contamination. Diagnostic procedures involve checking for proper alignment, inspecting for signs of wear, and ensuring that the link operates smoothly within the fuel injection system. Regular maintenance practices, such as cleaning and lubrication, can help in preserving the functionality and longevity of the link 6.

Installation and Replacement

Proper installation and replacement of the Injector Plunger Link require careful attention to detail. The process involves removing the old link, inspecting the camshaft and injector components for wear, and installing the new link with precise alignment. Necessary tools include wrenches, sockets, and possibly specialized alignment tools. Precautions should be taken to ensure that all components are clean and free from debris to prevent contamination of the fuel injection system 7.

Compatibility of Injector Plunger Link Part 3279819 with Cummins Engines

The Injector Plunger Link part number 3279819, manufactured by Cummins, is a critical component in the fuel injection system of various Cummins engines. This part ensures the proper functioning of the injector by maintaining the connection between the injector plunger and the fuel injector body. Here is an overview of its compatibility with specific Cummins engines:

K19 and K38 Engines

The Injector Plunger Link part 3279819 is compatible with the K19 and K38 engines. These engines are known for their robust design and are often used in heavy-duty applications. The link’s role in these engines is to facilitate the smooth operation of the injectors, ensuring that fuel is delivered accurately and efficiently 8.

K50 Engines

Similarly, the K50 engine also utilizes the Injector Plunger Link part 3279819. This engine is part of the Cummins K Series, which is recognized for its reliability and performance in various industrial and commercial applications. The link ensures that the injectors function correctly, maintaining the engine’s overall performance and fuel efficiency 9.

QSK19 CM500 Engines

The QSK19 CM500 engine is another model that benefits from the Injector Plunger Link part 3279819. This engine is designed for demanding applications, providing high power output and durability. The link’s precision engineering is crucial in this engine, as it supports the high-pressure fuel injection system, ensuring optimal performance and longevity 10.

Grouping of Compatible Engines

The compatibility of the Injector Plunger Link part 3279819 extends across several Cummins engine models, including the K19, K38, K50, and QSK19 CM500. These engines, while differing in specific applications and power outputs, share a common requirement for reliable fuel injection components. The link’s design ensures it fits seamlessly into these engines, providing the necessary support for the injectors to operate effectively 11.

Role of Part 3279819 Injector Plunger Link in Engine Systems

The Injector Plunger Link, identified as part 3279819, is an integral component in the orchestration of various engine systems, ensuring seamless operation and optimal performance.

Integration with Key Engine Components

Camshaft and Valve Train: The Injector Plunger Link works in conjunction with the camshaft and valve train to regulate the timing and duration of fuel injection. This synchronization is vital for maintaining engine efficiency and power output 12.

Cylinder Head and Injector: Positioned within the cylinder head, the Injector Plunger Link interfaces directly with the injector. It facilitates the precise control of fuel delivery into the combustion chamber, enhancing combustion efficiency and reducing emissions 13.

EBM-Injector and EBM-Parts: As a component of the Electronically Controlled Unit Injector (EBM-Injector) system, the Injector Plunger Link is pivotal in the operation of EBM-parts. It ensures that fuel is injected at the correct pressure and timing, which is essential for the performance of high-pressure common rail systems 14.

Hydro Mechanical Step and Oil Control Valve: The link is also involved in the hydro mechanical step system, where it interacts with the oil control valve to manage the hydraulic pressure that actuates the injector plunger. This interaction is key to modulating fuel injection in response to engine load and speed 15.

Aftercooler and Aftercooler Plumbing: In turbocharged engines, the Injector Plunger Link’s role becomes even more significant. It must work in harmony with the aftercooler and aftercooler plumbing to ensure that the fuel is injected into air that has been cooled post-compression, optimizing combustion and engine performance 16.

Connecting Rod and Piston, and Cylinder Head Mounting: The efficient operation of the Injector Plunger Link directly influences the dynamics between the connecting rod and piston, as well as the cylinder head mounting. Proper fuel injection timing and pressure contribute to balanced combustion forces, which are critical for the longevity and reliability of these components 17.

Oil Manifold and Oil Connection: The link is supplied with hydraulic pressure through the oil manifold and oil connection. This pressurized oil is what drives the plunger within the injector, making the Injector Plunger Link a key player in the engine’s lubrication and fuel injection systems 18.

On-Board Spares and Service Kit: Given its importance, the Injector Plunger Link is often included in on-board spares and service kits. This ensures that in the event of a failure, the engine can be quickly returned to operational status with minimal downtime 19.

Protective Cover and Engine Installation Kit: During engine installation, the Injector Plunger Link must be carefully installed within the protective cover to shield it from contaminants and ensure it functions within the designed parameters. The engine installation kit typically includes all necessary components and tools for this process 20.

Conclusion

In summary, the Injector Plunger Link (part 3279819) is a sophisticated component that plays a significant role in the intricate dance of engine systems, from fuel injection to hydraulic actuation, and is a testament to the engineering precision required in modern engine design.


  1. Bennett, S. (2012). Modern Diesel Technology Light Duty Diesels. Cengage Learning.

  2. Xin, Q. (2011). Diesel Engine System Design. Woodhead Publishing.

  3. Berns, K., Dressler, K., Fleischmann, P., Grges, D., Kalmar, R., Sauer, B., Stephan, N., Teutsch, R., & Thul, M. (2018). Proceedings of the 5th Commercial Vehicle Technology Symposium CVT. Springer.

  4. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  5. Bennett, S. (2012). Modern Diesel Technology Light Duty Diesels. Cengage Learning.

  6. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  7. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  8. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  9. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  10. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  11. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  12. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  13. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  14. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  15. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  16. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  17. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  18. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  19. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

  20. Cummins Inc. (n.d.). Operation and Maintenance Manual for QSM11 CM876 M102M. Bulletin Number 5504541.

SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
2.0 x 0.5 x 0.5 in
Weight
0.1 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.