3013266
Fracture Resistant Screw
Cummins®

The Fracture Resistant Screw (Part #3013266) manufactured by Cummins is a specialized fastener designed for use in heavy-duty truck applications. Its purpose is to provide reliable fastening solutions that can withstand the demanding conditions encountered in commercial trucking. The significance of this screw lies in its ability to maintain structural integrity and ensure the longevity of critical components in heavy-duty trucks.

Basic Concepts of Fracture Resistant Screws

Fracture resistant screws are engineered to offer enhanced durability and resistance to mechanical stress compared to standard screws. These screws are designed with materials and construction techniques that minimize the risk of fracture under load. Their importance in mechanical assemblies stems from their ability to maintain secure fastenings in environments where standard screws might fail ¹.

Purpose and Role in Truck Operation

The 3013266 Fracture Resistant Screw plays a specific role in the operation and maintenance of commercial trucks. It is typically used in applications where components are subjected to high stress and vibration, such as in engine mounts, transmission housings, and chassis components. The function of this screw is to provide a secure and lasting connection that can endure the rigors of heavy-duty use ².

Key Features

The 3013266 Fracture Resistant Screw boasts several key features that enhance its performance. It is composed of high-strength materials, often including alloys that offer superior resistance to corrosion and fatigue. Design elements such as threaded profiles and head styles are optimized to distribute load evenly and prevent stress concentrations. Additionally, the screw may feature coatings or treatments that further improve its resistance to environmental factors ³.

Benefits

Using the 3013266 Fracture Resistant Screw offers several benefits. Its improved durability ensures that fastenings remain secure over extended periods, even in harsh operating conditions. The screw’s resistance to mechanical stress reduces the likelihood of failure, which can lead to costly repairs and downtime. Furthermore, its longevity contributes to the overall reliability of the truck, enhancing operational efficiency ⁴.

Installation Considerations

Proper installation of the 3013266 Fracture Resistant Screw is vital to ensure optimal performance and longevity. Guidelines for installation include using the correct torque specifications to avoid over-tightening, which can lead to screw failure, or under-tightening, which can result in loose connections. It is also important to ensure that mating surfaces are clean and free from contaminants that could compromise the screw’s holding power.

Troubleshooting and Maintenance

Common issues with fracture resistant screws may include corrosion, wear, or damage from improper installation. Troubleshooting tips involve inspecting screws regularly for signs of distress and replacing them as necessary. Maintenance practices such as applying protective coatings and ensuring proper lubrication of moving parts can prolong the life of the screw and ensure continued reliable operation.

Comparative Analysis

When compared to standard screws, the 3013266 Fracture Resistant Screw demonstrates differences in performance, durability, and application suitability. While standard screws may suffice for less demanding applications, the fracture resistant screw’s enhanced material properties and design make it more suitable for the high-stress environments typical of heavy-duty trucks.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and aftermarket parts. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. The company’s extensive product range and commitment to customer satisfaction have made it a trusted name among fleet operators and maintenance professionals.

Fracture Resistant Screw 3013266 Compatibility with Cummins Engines

The Fracture Resistant Screw 3013266, manufactured by Cummins, is designed to provide enhanced durability and reliability in various engine applications. This part is engineered to withstand the stresses and strains encountered in engine environments, ensuring long-term performance and safety.

QSK Series Engines

The 3013266 screw is compatible with several models within the QSK series:

• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM500
• QSK19 CM850 MCRS
• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

These engines benefit from the screw’s ability to resist fracture under operational conditions, contributing to the overall integrity and longevity of the engine.

KTA38 Series Engines

The 3013266 screw is also suitable for the following KTA38 series engines:

• KTA38GC CM558

In these engines, the screw’s fracture resistance helps maintain structural integrity, particularly in high-stress areas.

Other Cummins Engines

Additionally, the 3013266 screw is compatible with the following engines:

• 6B5.9
• GTA38 G CMEICS G116C
• K19
• K38
• K50

These engines also benefit from the enhanced durability and reliability provided by the fracture-resistant design of the 3013266 screw.

Role of Part 3013266 Fracture Resistant Screw in Engine Systems

The Part 3013266 Fracture Resistant Screw is instrumental in ensuring the robust assembly and secure fastening of various components within engine systems. Its application spans across multiple critical areas, enhancing the integrity and performance of the engine.

Aftercooler Core Assembly

In the aftercooler core assembly, the fracture-resistant screw ensures that the core components are tightly secured, preventing any potential leaks or misalignments that could compromise cooling efficiency.

Short Block K50G3 and KTTA-19C Short Block

For the short block K50G3 and the KTTA-19C short block, this screw plays a significant role in maintaining the structural integrity of the block. It secures various sub-components, ensuring that the block remains stable under high operational stresses.

Cylinder Short K-6 and Camshaft Assemblies

In the cylinder short K-6 and camshaft assemblies, the screw is used to fasten the camshaft cover and camshaft gear, ensuring precise alignment and reducing the risk of mechanical failures.

Connection Rod Piston Assembly and Cylinder Head

The connection rod piston assembly and cylinder head benefit from the secure fastening provided by this screw. It ensures that the piston rods and cylinder head components are held firmly in place, contributing to smooth engine operation and durability.

Hydro Mechanical Step and Injectors

In hydro mechanical step and injector systems, the screw is vital for maintaining the precise fitting of components, which is essential for the accurate delivery of fuel and the overall efficiency of the engine.

Turbocharger and Wiring Retainer Bracket

The turbocharger and wiring retainer bracket also utilize this screw to ensure that all components are securely fastened. This is particularly important in the turbocharger, where high speeds and temperatures can lead to increased stress on fastening components.

Service Coupling Assemblies

For the service coupling 2008 and 2009 assemblies, the screw ensures that all connections are tight and secure, which is essential for the reliable transfer of power and fluids within the engine system.

On Board Spares and Oil Control Valve

In on board spares and the oil control valve, the screw provides the necessary security to ensure that these components remain functional and do not become dislodged during engine operation.

Overall, the Part 3013266 Fracture Resistant Screw is a key component in maintaining the structural integrity and operational reliability of various engine systems.

Conclusion

The 3013266 Fracture Resistant Screw is a critical component in the maintenance and operation of heavy-duty trucks and Cummins engines. Its enhanced durability, resistance to mechanical stress, and compatibility with a wide range of engine models make it an indispensable part for ensuring the structural integrity and longevity of critical components. Proper installation, regular maintenance, and understanding its role in various engine systems are essential for maximizing the benefits of this Cummins part.