3048351
Captive Washer Cap Screw
Cummins®

The 3048351 Captive Washer Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a range of components that enhance the performance and reliability of heavy-duty vehicles. This Cummins part is integral to the mechanical systems of commercial trucks.

Basic Concepts

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer, which is held in place by a protrusion on the screw’s shank. This design ensures that the washer remains attached to the screw, reducing the risk of loss during installation and providing a more secure fastening solution ¹. The 3048351 consists of a threaded shank, a head for driving, and an integrated washer. It functions by securing components together while distributing the clamping force more evenly, which helps prevent damage to the fastened materials.

Purpose and Role in Truck Operation

This part plays a role in the operation of a truck by securing various components and contributing to the structural integrity of the vehicle. It is used in applications where a reliable and consistent fastening solution is required. By providing a secure attachment point, it helps maintain the alignment and functionality of critical truck systems, ensuring that components remain in place under varying operational conditions.

Key Features

The 3048351 features a design that incorporates an integrated washer, which is held captive by a protrusion on the screw’s shank. This design enhances the screw’s performance by ensuring that the washer does not become detached during installation. The screw is made from high-quality materials, which contribute to its durability and resistance to corrosion. Additionally, the screw’s threading and head design are optimized for easy installation and removal using standard tools.

Benefits

Using the 3048351 offers several benefits. The integrated washer design simplifies the installation process by eliminating the need to handle separate washers, which can be prone to loss or misplacement. This feature also enhances the reliability of the fastening solution by ensuring consistent washer placement. Furthermore, the screw’s material composition and design contribute to improved durability and resistance to environmental factors, reducing the need for frequent replacements.

Installation Process

To install the 3048351, begin by ensuring that the fastening area is clean and free of debris. Position the screw so that the head aligns with the driving tool. Using a torque wrench, tighten the screw to the manufacturer’s specified torque settings to ensure a secure fit without over-tightening, which could damage the screw or the fastened materials. It is important to follow the recommended installation procedures to avoid common pitfalls such as cross-threading or insufficient tightening.

Troubleshooting Common Issues

Common issues with the 3048351 may include difficulty in installation, loosening over time, or corrosion. To address these issues, ensure that the screw is correctly aligned and that the correct torque settings are used during installation. If the screw loosens, it may be necessary to re-tighten it or replace it if damage is detected. Corrosion can be mitigated by using screws made from corrosion-resistant materials and by applying protective coatings where appropriate.

Maintenance Tips

To maintain the 3048351, regular inspections should be conducted to check for signs of wear, corrosion, or loosening. If any issues are detected, the screw should be tightened or replaced as necessary. Additionally, keeping the fastening area clean and free of debris can help prevent corrosion and ensure the longevity of the screw. Following these maintenance practices can help ensure optimal performance and longevity of the fastening solution.

Compatibility and Applications

The 3048351 is designed for use in various truck models and systems where a secure and reliable fastening solution is required. It is compatible with a range of applications within the commercial truck industry, contributing to the structural integrity and functionality of the vehicle.

Cummins: A Brief Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its wide range of high-quality components and engines. With a history of innovation and excellence, Cummins has established a strong reputation for producing reliable and durable products that meet the demanding requirements of commercial trucking. The company’s product range includes engines, powertrain components, and aftermarket parts, all designed to enhance the performance and reliability of heavy-duty vehicles.

Captive Washer Cap Screw 3048351 in Cummins Engines

The Captive Washer Cap Screw part number 3048351 by Cummins is a component in several of their engine models. This part is designed to secure various engine parts together, ensuring stability and reliability during operation. Here’s how it fits into the different engines:

G855 Series

• G855
• G855 CM558
• GTA855 CM558 (CM2358)

In the G855 series, the 3048355 cap screw is used to fasten components that require a secure hold, ensuring the engine’s structural integrity and operational efficiency.

G101 Series

• G101

The G101 engine also utilizes the 3048351 cap screw to maintain the alignment and connection of critical parts, contributing to the engine’s overall performance.

N14 Series

• N14 CELECT
• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

The N14 series engines, including the CELECT, CELECT PLUS, G, and MECHANICAL variants, incorporate the 3048351 cap screw to secure various engine components, ensuring consistent performance and durability.

NH/NT 855 Series

• NH/NT 855

In the NH/NT 855 engine, the 3048351 cap screw is used to fasten parts that are critical for the engine’s operation, providing a reliable connection that can withstand the demands of heavy-duty applications.

QSN14 Series

• QSN14 CM876 N103
• QSNT14 CM876 N102

The QSN14 series engines, specifically the CM876 N103 and N102 models, also rely on the 3048351 cap screw to secure components that are essential for the engine’s structural integrity and performance.

Understanding the Role of Part 3048351 Captive Washer Cap Screw in Engine Systems

In the intricate assembly of engine systems, the 3048351 Captive Washer Cap Screw plays a significant role in ensuring the secure attachment and alignment of various components. This screw is instrumental in the fastening process of several key parts, contributing to the overall stability and functionality of the engine.

Integration with Base Parts

The 3048351 Captive Washer Cap Screw is commonly used in the attachment of base parts to the engine frame. These base parts serve as the foundational elements upon which other components are mounted. The screw ensures that these parts remain firmly in place, reducing the risk of misalignment or detachment during engine operation.

Application in Housing Assemblies

Housing assemblies, such as the flywheel housing and fuel filter housing, rely on the 3048351 Captive Washer Cap Screw for secure attachment. These housings protect sensitive components and maintain the integrity of the engine’s internal environment. The screw’s design allows for a tight and consistent fit, which is essential for the housing’s protective function.

Securing the Flywheel and Related Components

The flywheel is a vital component in the engine’s operation, responsible for storing rotational energy and smoothing out the power delivery. The 3048351 Captive Washer Cap Screw is used in the mounting of the flywheel to its housing. This ensures that the flywheel remains securely attached, allowing for efficient energy transfer and stable engine performance.

Attachment of the Rear Cover Plate

The rear cover plate is another component where the 3048351 Captive Washer Cap Screw finds application. This plate often covers the backside of the engine, protecting internal components from external elements. The screw’s role here is to provide a secure and leak-proof seal, enhancing the engine’s durability and performance.

Ensuring Stability in Flywheel Housing Mounting

The flywheel housing mounting is a critical area where the 3048351 Captive Washer Cap Screw contributes to the engine’s stability. By securely fastening the flywheel housing to the engine block, the screw helps maintain the precise alignment necessary for optimal engine function.

Contribution to Fuel System Integrity

In the fuel system, particularly around the fuel filter, the 3048351 Captive Washer Cap Screw ensures that the filter housing remains tightly sealed. This is essential for maintaining the cleanliness of the fuel supply and preventing leaks, which could lead to engine malfunction.

Role in Flywheel Housing No 1 and Other Specific Applications

For components like the Flywheel Housing No 1 and similar specific applications, the 3048351 Captive Washer Cap Screw provides the necessary tension and security. These applications often require precise mounting to ensure the engine’s balanced operation, and the screw plays a key role in achieving this.

Conclusion

In summary, the 3048351 Captive Washer Cap Screw is a versatile and essential component in the assembly and maintenance of engine systems. Its application across various housings, mountings, and protective covers underscores its importance in ensuring the engine’s structural integrity and operational efficiency.