3049513
Twelve Point Cap Screw
Cummins®

The 3049513 Twelve Point Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in heavy-duty truck components. Cummins, a well-established name in the automotive industry, is known for its commitment to quality and innovation. This particular cap screw is significant due to its role in ensuring the secure fastening of various truck components, contributing to the overall reliability and performance of heavy-duty vehicles.

Basic Concepts of Twelve Point Cap Screws

A Twelve Point Cap Screw is a type of fastener characterized by its hexagonal socket head with twelve points, as opposed to the more common six-point design. This design allows for greater torque application without the risk of cam-out, which occurs when a tool slips out of the fastener’s head. The twelve-point design provides a more secure grip, reducing the likelihood of damage to the fastener or the tool during installation and removal ¹.

Purpose and Role in Truck Operation

The 3049513 plays a specific role in the operation and maintenance of heavy-duty trucks. It is used to secure various components, ensuring they remain firmly in place under the demanding conditions trucks often face. By providing a reliable fastening solution, this cap screw contributes to the structural integrity and operational efficiency of truck components, facilitating smoother and safer vehicle operation ².

Key Features

The 3049513 features a robust design that includes a twelve-point socket head for enhanced torque application. It is made from high-quality materials, ensuring durability and resistance to corrosion. The screw’s design allows for easy installation and removal using standard tools, making it a practical choice for both original equipment manufacturers and maintenance professionals.

Benefits

The benefits of using the 3049513 include improved torque application, which allows for tighter and more secure fastening. Its resistance to loosening under vibration and harsh conditions ensures that components remain securely fastened, reducing the risk of failure. Additionally, its durability in challenging environments contributes to the longevity of the fastener and the components it secures ³.

Installation Guidelines

Proper installation of the 3049513 involves using the correct torque specifications to ensure a secure fastening without over-tightening, which could damage the fastener or the component. It is recommended to use a torque wrench to achieve the precise torque required for the application. Following manufacturer guidelines for installation will help ensure the fastener performs as intended.

Troubleshooting and Maintenance

Common issues with the 3049513, such as loosening or corrosion, can often be addressed through regular inspection and maintenance. Ensuring that fasteners are tightened to the correct specifications and protected from environmental factors can help prolong their lifespan. In cases of corrosion, cleaning and reapplying a suitable protective coating can restore the fastener’s performance.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the automotive industry. The company’s product range includes a variety of components for heavy-duty trucks, demonstrating its expertise in manufacturing reliable and high-performance parts.

Twelve Point Cap Screw in Cummins Engines

The Twelve Point Cap Screw part number 3049513, manufactured by Cummins, is a critical component in several of their engine models. This screw is designed to provide robust fastening capabilities, ensuring secure connections in various engine assemblies.

VTA903 and CM2250 Engines

In the VTA903 and CM2250 engines, the Twelve Point Cap Screw is utilized in several key areas. These engines, known for their reliability and performance, often require precise and strong fastening solutions to maintain structural integrity and operational efficiency. The cap screw’s twelve-point design allows for better grip and torque application, reducing the likelihood of stripping and ensuring a tight, secure fit.

V105 Engine

The V105 engine also incorporates the Twelve Point Cap Screw in its construction. This engine model, designed for heavy-duty applications, benefits from the enhanced durability and strength provided by the cap screw. The screw’s ability to withstand high stress and torque makes it ideal for securing components that are subject to significant mechanical forces.

Application Across Engine Models

The use of the Twelve Point Cap Screw across the VTA903, CM2250, and V105 engines highlights its versatility and importance in Cummins’ engine designs. By providing a reliable fastening solution, this component contributes to the overall performance and longevity of the engines. The screw’s design ensures that critical engine parts remain securely in place, even under demanding operating conditions.

Role of Part 3049513 Twelve Point Cap Screw in Engine Systems

The 3049513 Twelve Point Cap Screw is integral to the assembly and functionality of several key components within engine systems. Its application ensures secure fastening and reliable operation of these components.

1. EMBLever

In the context of the EMBLever, the Twelve Point Cap Screw is utilized to firmly attach the lever to its mounting bracket. This secure fastening is essential for maintaining the precise alignment and operational integrity of the EMBLever, which is responsible for actuating various engine mechanisms.

2. Rocker

For the Rocker, the Twelve Point Cap Screw plays a significant role in securing the rocker arm to its pivot point. This ensures that the rocker arm can transmit motion efficiently from the camshaft to the valves, contributing to the engine’s overall performance and reliability.

3. Manifold

Within the Manifold assembly, the Twelve Point Cap Screw is employed to fasten various components such as the intake and exhaust manifolds to the engine block. This secure attachment is vital for maintaining the integrity of the air and exhaust flow paths, which are critical for engine efficiency and power output.

4. Water System

In the Water System, the Twelve Point Cap Screw is used to secure components such as water pump brackets, thermostat housings, and coolant passages. This ensures that the water system remains leak-free and operates efficiently, which is essential for maintaining optimal engine temperature and preventing overheating.

5. Rocker Lever Mounting Shaft

The Twelve Point Cap Screw is also crucial in securing the Rocker Lever Mounting Shaft to the engine block or cylinder head. This secure attachment ensures that the rocker lever can operate smoothly and consistently, which is essential for the precise timing and operation of the engine’s valve train.

Conclusion

The 3049513 Twelve Point Cap Screw by Cummins is a vital component in the automotive industry, particularly for heavy-duty truck applications. Its unique design, robust construction, and reliable performance make it an essential part for securing various engine components, ensuring the structural integrity and operational efficiency of heavy-duty vehicles. Proper installation, regular maintenance, and understanding its role in engine systems are crucial for maximizing the benefits of this fastener.