5256034
Injector
Cummins®

AVAILABLE

Cummins®

4 are currently available

Ships within 2-4 business days

$1,249.95 $1,487.44

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 Injector, part number 5256034, is a specialized component designed for use in commercial trucks. It is integral to the operation of these vehicles, ensuring efficient fuel delivery and combustion. This part is part of Cummins Inc.’s lineup of high-performance diesel engine components, known for their reliability and efficiency 1.

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 for combustion. The precise control of fuel delivery by injectors is vital for engine performance, efficiency, and emissions control. In diesel engines, fuel injectors play a significant role in the combustion process by ensuring the fuel is delivered at the right time and in the correct amount 2.

Purpose of the Cummins 5256034 Injector

The Cummins 5256034 Injector is designed to enhance the fuel delivery system in commercial trucks. It ensures that fuel is injected into the engine’s combustion chamber at high pressure and with precise timing. This contributes to efficient combustion, which is fundamental for the engine’s performance and fuel economy. The injector’s role in fuel delivery and combustion efficiency is significant for the overall operation of the truck 3.

Key Features

The Cummins 5256034 Injector boasts several key features that enhance its performance. Its design incorporates advanced technology to ensure precise fuel delivery. The materials used in its construction are chosen for their durability and resistance to the high pressures and temperatures within a diesel engine. These features contribute to the injector’s reliability and efficiency in demanding commercial truck applications.

Benefits of Using the Cummins 5256034 Injector

Utilizing the Cummins 5256034 Injector offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is used more effectively during combustion. This injector also enhances engine performance, providing smoother operation and increased power output. Additionally, its reliability reduces the likelihood of engine downtime, making it a valuable component for commercial truck operators.

Installation and Compatibility

Proper installation of the Cummins 5256034 Injector is important for its performance and longevity. It is designed to be compatible with specific Cummins engine models, ensuring seamless integration into the engine system. Following manufacturer guidelines during installation helps maintain the injector’s efficiency and reliability.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 5256034 Injector is important to ensure its optimal performance. This includes checking for leaks, ensuring proper fuel pressure, and cleaning or replacing components as needed. Common issues may include clogged injectors or fuel delivery problems, which can often be resolved through routine maintenance and troubleshooting.

Performance Enhancements

The Cummins 5256034 Injector contributes to overall engine performance by improving fuel atomization and combustion efficiency. This leads to increased power output and better fuel economy. Its advanced design and precise fuel delivery capabilities are key factors in enhancing the engine’s performance in commercial truck applications.

Environmental Impact

The use of the Cummins 5256034 Injector can have positive environmental impacts. By improving fuel efficiency and combustion efficiency, it helps reduce emissions from commercial trucks. This contributes to lower environmental impact and supports efforts to reduce the carbon footprint of transportation.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a reputation for manufacturing high-quality diesel engines and components, Cummins has been a trusted name in the industry for many years. The company’s commitment to innovation and quality is reflected in its products, including the Cummins 5256034 Injector.

Role of Part 5256034 Injector in Engine Systems

The part 5256034 Injector is an integral component in the fuel delivery system of an engine, ensuring precise fuel metering and delivery to the combustion chamber. Its role is multifaceted, interacting with several key components to optimize engine performance and efficiency.

Interaction with the Cylinder Head

The injector is typically mounted on the cylinder head, directly above the intake ports. This strategic placement allows for the injector to deliver fuel into the intake tract or directly into the combustion chamber, depending on whether the engine is port-fuel injected or direct-injected. The cylinder head’s design, including the intake and exhaust ports, is engineered to work in harmony with the injector to ensure optimal air-fuel mixture distribution.

Coordination with the Camshaft

The camshaft plays a significant role in the valve timing of the engine, controlling the opening and closing of the intake and exhaust valves. Proper synchronization between the camshaft and the injector is essential. The injector’s fuel delivery must be timed to coincide with the intake stroke, ensuring that the fuel is available when the air-fuel mixture is drawn into the cylinder. This timing is often controlled by the engine control unit (ECU), which receives signals from the camshaft position sensor.

Integration with the Connecting Rod and Piston

The connecting rod and piston assembly is responsible for converting the force generated by the combustion of the air-fuel mixture into mechanical motion. The injector’s role is to provide the precise amount of fuel needed for efficient combustion. The quality of the air-fuel mixture directly influences the power output and efficiency of the piston’s movement. An optimally functioning injector ensures that the combustion process is consistent, thereby supporting the smooth operation of the connecting rod and piston.

Injector Plumbing

The injector is part of a complex plumbing system that includes fuel lines, rails, and filters. This system ensures that the injector receives a consistent supply of clean fuel at the correct pressure. The injector plumbing must be designed to handle the specific flow rates and pressures required by the 5256034 Injector, ensuring that it operates within its designed parameters. Any restrictions or leaks in this system can adversely affect the injector’s performance.

Enhancement with Performance Parts

In engines equipped with performance parts, such as upgraded camshafts, high-flow cylinder heads, or larger turbochargers, the demands on the injector increase. These modifications often require more fuel to be delivered at a higher rate to maintain the desired air-fuel ratio. The 5256034 Injector, with its precise fuel delivery capabilities, is often a key component in such setups, ensuring that the engine can handle the increased load and deliver enhanced performance.

Conclusion

In summary, the Cummins 5256034 Injector is a vital component that works in concert with the camshaft, connecting rod and piston, cylinder head, and injector plumbing to ensure efficient and effective fuel delivery. Its integration with these components is essential for the overall performance and reliability of the engine system.


  1. Diesel Engine Care and Repair, Nigel Calder, The McGraw-Hill Companies, 2007.

  2. Automotive Engines Diagnosis Repair and Rebuilding, Tim Giles, Cengage Learning, 2019.

  3. Owners Manual, engine: X11 CM2670 X126B, bulletinNumber: Bulletin Number 5504463.

RELATED PARTS

SPECIFICATIONS

Comments
Ref. TSB170023
Package Dimensions
10.0 x 4.5 x 2.5 in
Weight
1.35 lbs

BILL OF MATERIALS

Name Quantity Part Number
Injector Seal
O Ring Seal
* 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.