4376567
Engine Piston Kit
Cummins®

IN STOCK

Cummins®

More than 10 are currently available

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$1,049.95 $1,249.44

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

Introduction

The Cummins 4376567 Engine Piston Kit is a component designed for use in heavy-duty truck engines. Manufactured by Cummins Inc., a prominent figure in the diesel engine manufacturing sector, this part is integral to the operation of truck engines, contributing to their performance, efficiency, and longevity.

Basic Concepts of Engine Piston Kits

An engine piston kit is a collection of components that work together within an internal combustion engine. The primary components include the piston, piston rings, and wrist pin. The piston moves up and down within the cylinder, driven by the combustion of fuel. This movement is converted into rotational motion by the connecting rod, which is attached to the piston via the wrist pin. The piston rings seal the combustion chamber, ensuring that the pressure generated by combustion is effectively used to move the piston 1.

Purpose of the Cummins 4376567 Engine Piston Kit

This Cummins part plays a specific role in the operation of truck engines. It is designed to enhance engine performance by ensuring efficient combustion and smooth operation of the piston within the cylinder. The kit contributes to engine efficiency by maintaining proper sealing within the combustion chamber, thus maximizing the use of fuel energy. Additionally, it aids in the durability of the engine by providing components that are resistant to wear and capable of withstanding high temperatures and pressures 2.

Key Features

The Cummins 4376567 Engine Piston Kit is distinguished by several key features. These include high-quality materials that ensure durability and resistance to wear. The design of the kit incorporates enhancements that improve its performance and integration within the engine. Unique attributes of the kit may include advanced piston ring technology that offers superior sealing capabilities and reduced friction 3.

Benefits

Utilizing the Cummins 4376567 Engine Piston Kit offers several benefits. It contributes to improved engine performance through efficient combustion and reduced friction. The kit’s durability leads to increased engine lifespan, and its reliability can result in potential cost savings over time due to reduced maintenance and replacement needs.

Troubleshooting and Maintenance

Common issues with engine piston kits may include wear on piston rings, wrist pin failure, or piston seizure. Troubleshooting these problems involves inspecting the components for signs of wear or damage and addressing any issues promptly to prevent further damage. Maintenance practices for the 4376567 Engine Piston Kit include regular inspections, proper lubrication, and following manufacturer guidelines for operation and care to ensure longevity and optimal performance.

About Cummins

Cummins Inc. has a long-standing history in the automotive industry, particularly in diesel engine manufacturing. The company is recognized for its expertise, innovation, and commitment to quality. Cummins’ dedication to advancing engine technology is evident in its product offerings, including the 4376567 Engine Piston Kit, which embodies the company’s values of reliability and performance.

Role of Part 4376567 Engine Piston Kit in Overhaul Kit

This part is an essential component within an overhaul kit, designed to facilitate the restoration and optimization of engine performance. This kit typically includes pistons, piston rings, wrist pins, and other related components necessary for a comprehensive engine rebuild.

When integrated into an overhaul kit, the Engine Piston Kit ensures that the engine’s combustion chambers are sealed effectively, allowing for optimal compression and power output. The pistons, a core element of the kit, move up and down within the cylinders, driven by the pressure generated during the combustion process. This motion is transferred through the connecting rods to the crankshaft, ultimately converting linear motion into rotational energy.

Piston rings, another vital component included in the kit, play a significant role in maintaining the seal between the piston and the cylinder wall. This seal is necessary for preventing gas leakage, ensuring that the combustion process is efficient and that the engine operates smoothly. The top ring is primarily responsible for controlling the gas pressure, while the oil control rings manage the lubrication by regulating the amount of oil on the cylinder walls.

Wrist pins, also part of the Engine Piston Kit, connect the pistons to the connecting rods. They allow for the pivotal motion required for the conversion of linear to rotational motion. The durability and precision engineering of these pins are vital for the longevity and performance of the engine.

Components of Cummins Engine Piston Kit 4376567

The Cummins Engine Piston Kit 4376567 is a comprehensive assembly designed to facilitate the repair or overhaul of an engine’s piston system. Each component within this kit plays a critical role in ensuring the piston operates efficiently and reliably. Below is a detailed look at the individual components and their functions within the kit.

Retaining Ring (3064305)

The retaining ring, also known as a circlip, is a small yet vital component in the piston kit. It is responsible for securing various parts of the piston assembly in place. Specifically, the retaining ring ensures that the piston pin remains correctly positioned within the piston and the connecting rod. Without a properly installed retaining ring, the piston pin could dislodge, leading to severe engine damage.

Engine Piston (3688100)

The engine piston is the central component of the kit. It is a cylindrical part that moves up and down within the engine cylinder, converting the pressure from the combustion of fuel into mechanical force. The piston’s design, including its skirt, rings, and pin boss, is crucial for efficient engine operation. The piston in this kit is precision-engineered to meet Cummins’ high standards for performance and durability.

Piston Pin (3689296)

Also known as the wrist pin, the piston pin connects the piston to the connecting rod. This pin allows the piston to pivot as it moves within the cylinder, transferring the force generated by the combustion process to the crankshaft via the connecting rod. The piston pin must be robust and precisely machined to withstand the high stresses and temperatures within the engine.

Piston Ring Kit (6379407)

The piston ring kit is a set of rings that fit into grooves on the outer diameter of the piston. These rings serve multiple functions: they create a seal between the piston and the cylinder wall to prevent gas leakage, control oil consumption by scraping excess oil from the cylinder walls, and transfer heat from the piston to the cylinder wall. The kit typically includes compression rings and oil control rings, each designed to perform specific tasks critical to engine efficiency and longevity.

Conclusion

The Cummins 4376567 Engine Piston Kit is a vital component for maintaining and enhancing the performance of heavy-duty truck engines. Its high-quality materials, advanced design features, and comprehensive component set ensure efficient operation, durability, and reliability. Regular maintenance and proper use of this part can lead to significant benefits, including improved engine performance, increased lifespan, and potential cost savings.


  1. Naunheimer, H., Bertsche, B., Ryborz, J., & Novak, W. (2011). Automotive Transmissions Fundamentals Selection Design and Application. Springer Vieweg.

  2. Hilgers, M. (2022). Transmissions and Drivetrain Design. Springer Vieweg.

  3. Reif, K. (2014). Diesel Engine Management Systems and Components. Springer.

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SPECIFICATIONS

Package Dimensions
6.88 x 6.88 x 10.25 in
Weight
14 lbs

BILL OF MATERIALS

Name Quantity Part Number
Retaining Ring
Piston Pin
Piston Ring Kit
* 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.