3025802
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw, specifically Part #3025802 by Cummins, is a vital component in the realm of commercial trucks. Cummins, a renowned manufacturer in the industry, produces this screw which is integral to the fastening systems used in these vehicles. Understanding its role, design, and functionality is key to maintaining the efficiency and reliability of commercial trucks.

Basic Concepts of Hexagon Head Cap Screw

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The screw’s design includes a threaded shaft that engages with internal threads in the material being fastened, providing a secure connection. In commercial trucks, these screws are used in various applications where strong, durable fastening is required ¹.

Purpose of the 3025802 Hexagon Head Cap Screw in Truck Operation

This Cummins part serves a specific purpose in the operation and maintenance of commercial trucks. It is utilized in applications where secure and reliable fastening is necessary, such as in the assembly of engine components, chassis parts, and other critical areas. Its role is to provide a strong, durable connection that can withstand the rigors of heavy-duty use.

Key Features

This part is distinguished by several key features. It is manufactured from high-quality materials, ensuring durability and resistance to wear. The screw features a specific thread type that provides a strong grip and secure fastening. Its hexagonal head design allows for easy and efficient tightening and loosening, making it a practical choice for various applications in commercial trucks.

Benefits

Using this part offers several benefits. Its durable construction ensures long-lasting performance, even under demanding conditions. The ease of use, thanks to its hexagonal head, allows for quick and efficient fastening. Additionally, the screw’s design helps resist loosening over time, maintaining a secure connection and reducing the need for frequent re-tightening.

Installation Guidelines

Proper installation of this part is crucial for optimal performance and safety. To install, ensure the mating threads are clean and free of debris. Use the appropriate wrench or socket to tighten the screw to the recommended torque specification. Avoid over-tightening, as this can damage the screw or the material being fastened. Regular checks should be performed to ensure the screw remains securely fastened ².

Troubleshooting Common Issues

Common issues with Hexagon Head Cap Screws include loosening over time and damage to the hexagonal head. To address loosening, ensure the screw is tightened to the correct torque specification and check for any vibrations or movements that may cause it to loosen. If the hexagonal head is damaged, replace the screw to maintain a secure fastening. Regular inspections can help identify and resolve these issues promptly.

Maintenance Tips

Regular maintenance of this part is important to prolong its lifespan and ensure continued reliable performance. Inspect the screw regularly for signs of wear or damage. Clean the screw and surrounding area to remove any debris or corrosion. If the screw shows signs of wear, consider replacing it to maintain a secure fastening. Following these maintenance tips will help ensure the screw continues to perform effectively.

Cummins: Manufacturer Overview

Cummins is a well-established manufacturer with a rich history in the commercial truck industry. The company offers a wide range of products, including engines, powertrains, and components, known for their quality and reliability. Cummins’ reputation in the industry is built on a commitment to innovation, quality, and customer satisfaction, making them a trusted choice for commercial truck components, including the 3025802 Hexagon Head Cap Screw.

Hexagon Head Cap Screw 3025802 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 3025802 is a critical component in various Cummins engine models. This screw is designed to provide secure fastening in applications where high strength and durability are essential. Below is a detailed description of how this part fits within different Cummins engine series.

Cummins 4B3.9 and 6B5.9 Engines

In the 4B3.9 and 6B5.9 engines, the 3025802 screw is often used in the engine block assembly. It ensures that various components, such as the cylinder head and engine mounts, are securely fastened, maintaining structural integrity and operational efficiency.

Cummins 6C8.3 and B6.7 G CMOH6.0 Engines

For the 6C8.3 and B6.7 G CMOH6.0 engines, the 3025802 screw is utilized in several key areas, including the attachment of the engine block to the frame and securing the exhaust manifold. This screw’s high tensile strength is crucial for withstanding the stresses encountered during operation.

Cummins C GAS PLUS CM556 and C8.3 G Engines

In the C GAS PLUS CM556 and C8.3 G engines, the 3025802 screw is employed in the assembly of the turbocharger and other critical components. Its robust design ensures that these parts remain tightly fastened, contributing to the engine’s overall performance and longevity.

Cummins G5.9 and G8.3 Engines

The G5.9 and G8.3 engines use the 3025802 screw in the fastening of various engine components, including the fuel injection system and the engine’s cooling system. This screw’s precision and strength are vital for maintaining the operational efficiency of these engines.

Cummins GTA8.3 CM558 and ISBE CM800 Engines

In the GTA8.3 CM558 and ISBE CM800 engines, the 3025802 screw is used in the assembly of the engine’s cylinder head and other critical components. Its ability to provide a secure and reliable fastening ensures that these engines operate smoothly and efficiently.

Cummins ISC CM2150, ISC CM554, ISC CM850, and ISC8.3 CM2250 Engines

For the ISC CM2150, ISC CM554, ISC CM850, and ISC8.3 CM2250 engines, the 3025802 screw is used in the assembly of the engine’s intake and exhaust systems. Its high strength and durability are essential for maintaining the structural integrity of these components.

Cummins ISL CM2150, ISL CM554, ISL G CM2180, and ISL9 CM2150 SN Engines

In the ISL CM2150, ISL CM554, ISL G CM2180, and ISL9 CM2150 SN engines, the 3025802 screw is used in the assembly of the engine’s cylinder head and other critical components. Its robust design ensures that these parts remain securely fastened, contributing to the engine’s overall performance.

Cummins ISM CM570, ISM CM570/870, ISM CM876, and ISM11 CM876 SN Engines

For the ISM CM570, ISM CM570/870, ISM CM876, and ISM11 CM876 SN engines, the 3025802 screw is used in the assembly of the engine’s cylinder head and other critical components. Its high strength and precision are essential for maintaining the operational efficiency of these engines.

Role of Part 3025802 Hexagon Head Cap Screw in Engine Systems

This part is integral to the assembly and functionality of various engine components. It ensures secure fastening and alignment, contributing to the overall stability and performance of the engine system.

Accessories

In the realm of engine accessories, the Hexagon Head Cap Screw is utilized to mount and secure components such as the air cleaner and various sensors. Its robust design ensures that these accessories remain firmly in place, even under varying operational conditions.

Electric Starting and Ignition System

For the electric starting system and ignition system, the screw plays a vital role in attaching the starter motor and ignition components to the engine block. This secure attachment is essential for the reliable operation of the starting and ignition processes.

Breather and Crankcase

Within the breather and crankcase assembly, the Hexagon Head Cap Screw is employed to fasten the breather cover and crankcase components. This ensures that the breather system functions correctly, allowing for the release of pressure and contaminants from the crankcase.

Cooler and Engine Oil System

In the engine oil cooler and related systems, the screw is used to secure the cooler housing and oil filter housing. This securement is crucial for maintaining the integrity of the oil cooling process and ensuring efficient oil flow throughout the engine.

Front Gear and Flywheel Housing

The front gear and flywheel housing assemblies rely on the Hexagon Head Cap Screw to fasten critical components such as the front gear cover and flywheel top-level assembly housing. This ensures that the gear and flywheel systems operate smoothly and efficiently.

Gasket Sets and Housings

For gasket sets, including the gear cover and lower engine gasket set, the screw is essential for compressing the gaskets properly. This compression is necessary to create a seal that prevents leaks and maintains the engine’s performance.

Injector Plumbing and Instrumentation

In injector plumbing and engine instrumentation, the screw is used to secure injector mounts and instrument housings. This ensures that fuel delivery and engine monitoring systems function accurately and reliably.

Mounting and Pan Systems

The screw is also pivotal in mounting the air cleaner and securing the oil pan. These applications ensure that the air intake system and oil reservoir are stable and well-integrated into the engine assembly.

Pump and Heat Exchanger Systems

Finally, in pump and heat exchanger systems, the Hexagon Head Cap Screw is used to attach the lubricating oil pump and heat exchanger components. This securement is essential for the efficient operation of these systems, ensuring proper lubrication and cooling of the engine.

Conclusion

The 3025802 Hexagon Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and various Cummins engine models. Its robust design, ease of use, and durable construction make it an essential part for secure fastening in demanding applications. Proper installation, regular maintenance, and timely replacement are key to ensuring the continued reliability and performance of this part in commercial truck and engine systems.