4891142
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4891142, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is integral to the assembly and maintenance of various truck components, ensuring secure and reliable connections. Its design and functionality are tailored to meet the demanding requirements of commercial vehicles, contributing to their overall performance and longevity.

Basic Concepts and Functionality

Hexagon Flange Head Cap Screws are characterized by their hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The flange, a flat, circular plate at the head of the screw, provides additional surface area for load distribution and prevents the screw from sinking into the material it is securing. In the context of truck mechanics, these screws play a role in fastening critical components, ensuring they remain securely in place under various operational conditions ¹.

Purpose and Role in Truck Operation

The 4891142 Hexagon Flange Head Cap Screw serves a specific purpose in the operation of a truck by securing components that are subject to significant stress and vibration. It contributes to the overall functionality and performance of the vehicle by maintaining the integrity of these connections, which is vital for the safe and efficient operation of the truck ².

Key Features

The 4891142 Hexagon Flange Head Cap Screw features a robust design that includes a hexagonal head for easy manipulation and a flange that enhances load distribution. It is typically made from high-strength materials, such as alloy steel, which provide the necessary durability and resistance to wear. The screw’s unique characteristics, including its precise threading and high-quality finish, set it apart from other fasteners, ensuring reliable performance in demanding applications ³.

Benefits

Using the 4891142 Hexagon Flange Head Cap Screw offers several advantages. Its enhanced durability ensures long-lasting performance, while its design improves load distribution across the connection point. Additionally, the screw’s resistance to vibration and corrosion makes it suitable for use in harsh environments, contributing to the overall reliability of the truck.

Installation and Usage

Proper installation of the 4891142 Hexagon Flange Head Cap Screw is crucial for ensuring a secure and reliable connection. It is recommended to follow torque specifications provided by the manufacturer to achieve the correct tension without overtightening, which could lead to damage. Best practices include using the appropriate tools and ensuring the screw is aligned correctly with the component it is fastening.

Troubleshooting and Maintenance

Common issues with the 4891142 Hexagon Flange Head Cap Screw may include loosening, corrosion, or damage. Regular inspection and maintenance can help identify these problems early, allowing for timely intervention. Routine maintenance, such as cleaning and reapplying protective coatings, can prolong the lifespan of the screw and ensure continued reliable performance.

Manufacturer: Cummins

Cummins is a reputable manufacturer with a long-standing history in the commercial truck industry. Known for its commitment to quality and innovation, Cummins produces a wide range of automotive components that are designed to meet the rigorous demands of commercial vehicles. The company’s contributions to the industry include advancements in engine technology, fuel efficiency, and reliability, making it a trusted name among truck manufacturers and operators.

Hexagon Flange Head Cap Screw 4891142 in Cummins Engines

The Hexagon Flange Head Cap Screw part number 4891142, manufactured by Cummins, is a critical component in several of their engine models. This screw is designed to provide secure fastening in applications where a robust and reliable connection is essential.

ISB/ISD4.5 CM2150 B119 and ISB/ISD6.7 CM2150 SN

In the ISB/ISD4.5 CM2150 B119 and ISB/ISD6.7 CM2150 SN engines, the 4891142 screw is utilized in various structural and functional applications. These engines, known for their durability and efficiency, often require precise fastening solutions to maintain the integrity of their components under high operational stresses. The screw’s design ensures that it can withstand the demanding conditions within these engines, providing a reliable connection that is crucial for the engine’s performance and longevity.

ISBE CM2150 and ISBE CM800

The ISBE CM2150 and ISBE CM800 engines also benefit from the use of the 4891142 screw. These engines are typically used in heavy-duty applications, where the reliability of each component is paramount. The screw’s flange head and hexagon socket provide a secure grip, essential for maintaining the alignment and stability of various engine parts. This ensures that the engine operates smoothly and efficiently, even under heavy loads.

ISBE4 CM850

In the ISBE4 CM850 engine, the 4891142 screw is used in critical areas where high precision and strength are required. This engine, designed for demanding applications, relies on the screw’s ability to provide a steadfast connection that can endure the rigors of continuous operation. The screw’s design allows for easy installation and removal, facilitating maintenance and repairs, which is crucial for the engine’s operational efficiency.

Each of these engines, while differing in size and application, shares the common requirement for reliable and robust fastening solutions. The 4891142 screw, with its specific design and high-quality construction, meets these needs, ensuring that the engines perform optimally and reliably.

Role of Part 4891142 Hexagon Flange Head Cap Screw in Engine Systems

The part 4891142 Hexagon Flange Head Cap Screw is integral to the assembly and functionality of various engine components. Its robust design ensures secure fastening, which is essential for the reliable operation of the engine.

Drive System

In the drive system, the Hexagon Flange Head Cap Screw is used to fasten components such as the drive belt tensioner and the drive pulley. This secure attachment ensures that the drive belt maintains proper tension, which is vital for the efficient transfer of power from the engine to other components. Without secure fastening, the drive belt could slip or break, leading to a loss of power transmission and potential engine damage.

Water Pump

The water pump is another area where the Hexagon Flange Head Cap Screw plays a significant role. It is used to attach the water pump housing to the engine block. This secure connection is necessary to maintain the integrity of the cooling system. Any loosening of the screw could result in leaks, which would compromise the cooling efficiency and potentially lead to engine overheating.

Idler Pulley

The idler pulley, which helps maintain tension in the drive belt, also relies on the Hexagon Flange Head Cap Screw for secure attachment. Proper tension in the drive belt is crucial for the smooth operation of ancillary components like the alternator, power steering pump, and air conditioning compressor. The screw ensures that the idler pulley remains in the correct position and does not shift during engine operation.

Pulley Attachments

Various pulleys throughout the engine system, including those for the alternator and air conditioning compressor, are fastened using the Hexagon Flange Head Cap Screw. These pulleys need to be securely attached to ensure they spin at the correct speed and alignment. Any misalignment or looseness can lead to increased wear and potential failure of the pulleys or the belts they engage with.

Water Pump Drive

The water pump drive mechanism, which includes the drive pulley and the water pump itself, also benefits from the secure fastening provided by the Hexagon Flange Head Cap Screw. This ensures that the water pump operates efficiently, circulating coolant through the engine to maintain optimal operating temperatures. A secure attachment prevents any wobbling or misalignment that could reduce the effectiveness of the water pump.

Conclusion

In summary, the Hexagon Flange Head Cap Screw is a key component in ensuring the secure and reliable operation of various engine systems. Its role in fastening critical components cannot be overstated, as it contributes to the overall efficiency and longevity of the engine.