3912855RX
Injection Cavity Pump
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$3,499.95 $4,164.94
Refundable Core Charge: $389.95

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 3912855RX Injection Cavity Pump, manufactured by Cummins, is a component designed for use in commercial trucks. Cummins, a well-established name in the automotive industry, is known for producing reliable and high-performance components. This Cummins part is significant in the operation of commercial trucks, contributing to the efficiency and performance of the engine.

Basic Concepts of Injection Cavity Pumps

An Injection Cavity Pump is a component within a diesel engine’s fuel injection system. Its primary function is to create a vacuum or low-pressure area within the fuel injection cavity, which aids in the precise delivery of fuel to the engine’s combustion chambers. This process ensures that the fuel is atomized effectively, leading to more efficient combustion and better engine performance 1.

Role of the 3912855RX Injection Cavity Pump in Truck Operation

This Cummins part plays a specific role in the operation of commercial trucks by enhancing the fuel injection process. It contributes to engine performance by ensuring that fuel is delivered consistently and efficiently to the combustion chambers. This results in improved engine responsiveness, power output, and overall efficiency 2.

Key Features of the 3912855RX Injection Cavity Pump

The 3912855RX Injection Cavity Pump is designed with several features that enhance its performance and durability. It is constructed using high-quality materials that are resistant to wear and corrosion. The pump’s build quality ensures that it can withstand the demanding conditions of commercial truck operation. Additionally, it may include unique characteristics such as advanced sealing mechanisms to prevent fuel leaks and ensure a tight seal within the injection cavity.

Benefits of Using the 3912855RX Injection Cavity Pump

Using the 3912855RX Injection Cavity Pump offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is delivered precisely to the engine. This can lead to reduced fuel consumption and lower operating costs for commercial truck fleets. Additionally, the pump enhances engine performance by promoting more efficient combustion, which can result in increased power output and smoother operation. Its reliable design also contributes to the overall durability and longevity of the engine.

Installation and Integration

When installing the 3912855RX Injection Cavity Pump into a truck’s engine system, it is important to follow manufacturer guidelines to ensure proper integration. Compatibility with other engine components should be verified to avoid any issues during operation. Special requirements, such as specific mounting procedures or alignment considerations, may need to be addressed to ensure the pump functions correctly within the engine system.

Maintenance and Troubleshooting

To maintain the 3912855RX Injection Cavity Pump and ensure optimal performance, regular inspection intervals should be established. This may include checking for signs of wear, leaks, or damage to the pump and its associated components. Cleaning procedures should be followed to remove any contaminants that may affect the pump’s operation. Troubleshooting common issues, such as fuel delivery problems or abnormal engine behavior, may involve inspecting the pump for proper function and addressing any identified issues promptly.

Performance and Efficiency

The 3912855RX Injection Cavity Pump contributes to the overall performance and efficiency of the truck’s engine. By ensuring precise fuel delivery, it plays a role in optimizing fuel consumption and reducing emissions. This can lead to improved engine efficiency, lower operating costs, and a reduced environmental impact for commercial truck fleets 3.

Cummins: Manufacturer Overview

Cummins is a reputable manufacturer with a long-standing history in the automotive industry. Known for producing high-quality components, Cummins has established a strong reputation for reliability and performance. Their commitment to innovation and excellence is reflected in the design and construction of components like the 3912855RX Injection Cavity Pump, which are engineered to meet the demanding requirements of commercial truck applications.

Conclusion

The 3912855RX Injection Cavity Pump is a vital component in the operation of commercial trucks, contributing to engine efficiency and performance. Its role in the fuel injection process, combined with its durable construction and advanced features, makes it a valuable asset for commercial truck fleets. Regular maintenance and proper installation are essential to ensure optimal performance and longevity of this Cummins part.


  1. Vaclav Smil, The History and Impact of Diesel Engines and Gas Turbines, The MIT Press, 2010.

  2. P A Lakshminarayanan and Yogesh V Aghav, Modelling Diesel Combustion, Springer Science, 2010.

  3. Haoran Hu, Rudy Smaling, and Simon Baseley, Heavy-Duty Wheeled Vehicles, SAE International, 2014.

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SPECIFICATIONS

Package Dimensions
13.6 x 8.6 x 15.0 in
Weight
15.8 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.