3089188
Hexagon Flange Head Cap Screw
Cummins®

The Cummins Hexagon Flange Head Cap Screw, part number 3089188, is a component used in commercial trucks. Cummins, a reputable manufacturer in the automotive industry, produces this screw which is integral to the mechanical systems of trucks. This screw is designed to meet the demanding requirements of heavy-duty applications, ensuring reliable performance and durability.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange beneath the head. The hexagonal head allows for efficient torque application using common hand tools, while the flange provides a larger bearing surface that distributes the load more evenly, reducing the risk of damage to the fastened material. In a truck’s mechanical system, these screws are used to secure various components, ensuring they remain firmly in place under operational stresses ¹.

Purpose and Role in Truck Operation

This Cummins part plays a role in the operation of a truck by securing critical components that are subject to vibration and stress. It is commonly used in applications such as engine mounts, transmission housings, and chassis components. By providing a secure attachment point, it helps maintain the integrity of the truck’s structure and ensures that components function as intended throughout the vehicle’s operational life ².

Key Features

The 3089188 features a hexagonal head that facilitates easy and precise tightening with standard tools. The flange beneath the head increases the surface area in contact with the fastened material, enhancing the screw’s ability to withstand shear forces. Additionally, the screw is typically made from high-strength materials, ensuring it can endure the rigors of heavy-duty truck applications.

Benefits

Using this part offers several advantages. Its design contributes to durability, as the flange helps prevent the screw from loosening over time due to vibration. The hexagonal head allows for consistent torque application, reducing the likelihood of over-tightening or stripping. Furthermore, the screw’s ease of installation makes it a practical choice for both original equipment manufacturers and maintenance professionals.

Installation Process

To install the 3089188, begin by ensuring the mating surfaces are clean and free of debris. Use a torque wrench to apply the specified torque, which ensures the screw is tightened to the manufacturer’s recommendations without over-tightening. It is important to follow the torque sequence if multiple screws are being installed to ensure even distribution of clamping force.

Troubleshooting Common Issues

Common issues with Hexagon Flange Head Cap Screws may include loosening due to vibration or corrosion. To address loosening, re-torque the screws to the manufacturer’s specifications. If corrosion is present, clean the affected areas and consider applying a corrosion-resistant coating or using screws made from materials less prone to corrosion.

Maintenance Tips

To maintain the 3089188, regularly inspect it for signs of wear, corrosion, or loosening. Re-torque screws as part of routine maintenance to ensure they remain secure. Additionally, protect the screw and its surroundings from contaminants that may accelerate wear or corrosion.

Cummins: A Brief Overview

Cummins is a manufacturer with a long-standing reputation in the industry for producing high-quality automotive and heavy-duty truck components. The company is known for its commitment to innovation and quality, providing products that meet the rigorous demands of commercial vehicle applications. Cummins’ history of excellence and dedication to customer satisfaction underscores the reliability of its components, including the 3089188 ³.

Cummins Engine Hexagon Flange Head Cap Screw 3089188

The Cummins engine part 3089188, a Hexagon Flange Head Cap Screw, is a critical component used across a variety of Cummins engines. This screw is integral in securing various parts and assemblies within the engine, ensuring structural integrity and operational efficiency.

Engines Utilizing 3089188

B Series Engines

• B4.5 CM2350 B129B
• B4.5 RGT
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

F Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

ISB Series Engines

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

The Hexagon Flange Head Cap Screw 3089188 is designed to withstand the rigorous demands of engine environments, providing reliable fastening in high-stress applications. Its use across these various engine models underscores its versatility and importance in maintaining engine assembly integrity.

Role of Part 3089188 in Engine Systems

The 3089188 is integral in securing and maintaining the structural integrity of various engine components. Its application spans across multiple systems, ensuring reliable performance and durability.

Accessory Support

In accessory support systems, the Hexagon Flange Head Cap Screw is used to mount and secure accessories to the engine block or other structural components. This ensures that accessories remain firmly in place, reducing the risk of vibration-induced detachment.

Aftercooler and Air Compressor

For aftercoolers and air compressors, these screws play a role in attaching the housing to the engine framework. They help in maintaining the alignment and stability of these components, which is essential for efficient cooling and compression processes.

Air Transfer Connection and Alternator Guard

In air transfer connections, the screw secures the connection points, ensuring a leak-free seal. Similarly, for alternator guards, it provides the necessary fastening to protect the alternator from physical damage while keeping it securely in place.

Alternator Mounting and Auxiliary Cooling System

When mounting alternators, the Hexagon Flange Head Cap Screw ensures a robust connection to the engine, facilitating efficient power generation. In auxiliary cooling systems, it helps in securing radiators and other cooling components, enhancing the overall cooling efficiency of the engine.

Engine Oil Cooler and Flywheel Housing

For engine oil coolers, these screws are used to attach the cooler to the engine block, ensuring optimal oil temperature regulation. In flywheel housings, they secure the housing to the engine, providing stability during operation.

Fuel Pump and Full Flow Oil Filter

In fuel pump installations, the screw ensures the pump is securely mounted, preventing fuel leaks and ensuring consistent fuel delivery. For full flow oil filters, it maintains the filter’s position, crucial for effective oil filtration.

Guard Package and Heat Exchanger

Guard packages often use these screws to secure protective covers around vulnerable engine parts. In heat exchangers, they ensure the housing is firmly attached, promoting efficient heat transfer.

Kit, Repto, and Long Block

In various kits and repto assemblies, these screws are used to secure components within the kit, ensuring they function as a unified system. For long blocks, they help in attaching ancillary components, maintaining the structural integrity of the engine.

Lubricating Oil Pump and Oil Pan

For lubricating oil pumps, the screw ensures the pump is securely mounted, facilitating consistent oil circulation. In oil pan installations, it secures the pan to the engine block, preventing oil leaks.

Oil Pan Plumbing and Product Installation Package

In oil pan plumbing, these screws secure fittings and connections, ensuring a leak-free system. In product installation packages, they provide the necessary fastening for components, ensuring they are correctly installed and function as intended.

Refrigerant Compressor and Rocker Lever

For refrigerant compressors, the screw ensures the compressor is securely mounted, vital for efficient refrigerant circulation. In rocker lever systems, it secures the lever to the engine, ensuring precise valve operation.

Turbocharger and Water Inlet Connection

In turbochargers, these screws secure the turbocharger to the engine, ensuring it operates efficiently under high-stress conditions. For water inlet connections, they ensure the connection is secure, preventing leaks and maintaining efficient water flow.

Conclusion

The Cummins Hexagon Flange Head Cap Screw, part number 3089188, is a versatile and reliable component essential for the structural integrity and operational efficiency of various engine systems. Its robust design and high-strength materials make it suitable for heavy-duty applications, ensuring secure fastening and long-term durability.