4988169
Studded Flange Cap Screw
Cummins®

The 4988169 Studded Flange Cap Screw is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is designed for specific applications within commercial trucks, contributing to the overall efficiency and reliability of the vehicle.

Basic Concepts of Studded Flange Cap Screws

Studded flange cap screws are fasteners that include a flange at one end, which provides a larger surface area for distribution of clamping force. These screws are commonly used in mechanical applications where a secure and tight connection is required. They function by threading into a corresponding tapped hole, with the flange providing additional stability and resistance to rotation ¹.

Purpose of the 4988169 Studded Flange Cap Screw

The 4988169 Studded Flange Cap Screw plays a role in the operation and maintenance of commercial trucks by securing components that require a robust and reliable fastening solution. Its design ensures that parts remain firmly in place under various operating conditions, contributing to the truck’s performance and longevity ².

Key Features

The 4988169 Studded Flange Cap Screw is characterized by several key features:

• Material Composition: Typically made from high-strength steel to ensure durability and resistance to wear.
• Threading: Features precise threading that allows for secure fastening and easy installation.
• Flange Design: The flange provides additional surface area, enhancing the screw’s ability to distribute clamping force evenly.
• Unique Attributes: May include special coatings or treatments to improve corrosion resistance and performance in harsh environments ³.

Benefits

Using the 4988169 Studded Flange Cap Screw offers several advantages:

• Improved Sealing Capabilities: The flange design helps create a tighter seal, reducing the risk of leaks.
• Enhanced Durability: High-strength material and precise manufacturing contribute to a longer service life.
• Ease of Installation: The screw is designed for straightforward installation, minimizing downtime during maintenance procedures ⁴.

Installation Process

Proper installation of the 4988169 Studded Flange Cap Screw involves the following steps:

1. Preparation: Ensure the mating surface is clean and free of debris.
2. Alignment: Align the screw with the tapped hole.
3. Threading: Carefully thread the screw into the hole by hand to avoid cross-threading.
4. Tightening: Use the appropriate tool to tighten the screw to the specified torque, ensuring a secure fit without over-tightening.

Maintenance Tips

To ensure the longevity and optimal performance of the 4988169 Studded Flange Cap Screw, consider the following maintenance practices:

• Periodic Checks: Regularly inspect the screw for signs of wear or damage.
• Cleaning: Keep the screw and surrounding area clean to prevent buildup of dirt or debris that could affect performance.
• Torque Verification: Periodically verify that the screw remains tightened to the correct specifications.

Troubleshooting Common Issues

Common problems associated with studded flange cap screws may include:

• Loosening: Ensure the screw is tightened to the correct torque and check for any underlying issues that may cause loosening.
• Corrosion: Apply appropriate coatings or treatments to protect against corrosion, especially in harsh environments.
• Damage: Inspect for physical damage and replace the screw if necessary to maintain system integrity.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company offers a wide range of products designed to meet the demanding requirements of commercial applications.

Studded Flange Cap Screw 4988169 Compatibility with Cummins Engines

The Studded Flange Cap Screw 4988169, manufactured by Cummins, is a critical component designed to secure flanges in various engine systems. This screw is engineered to ensure a tight and reliable connection, which is essential for maintaining the integrity of the engine’s sealing and structural components. Below is a detailed description of its compatibility with the listed Cummins engines:

ISB Series

• ISB CM2150
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149
• ISB6.7 CM2250

The ISB series engines, including the ISB CM2150, ISB5.9 CM2880 variants, and ISB6.7 CM2250, utilize the Studded Flange Cap Screw 4988169 to secure various flanges. These engines are known for their robust design and are commonly used in heavy-duty applications. The screw’s studded design provides additional grip and stability, which is crucial for the high-pressure environments these engines operate in.

ISBE, ISX, and ISZ Series

• ISBE4 CM850
• ISX12/ISX11.9 CM2250
• ISX15 CM2350 X101
• ISZ13 CM2150 Z105

The ISBE, ISX, and ISZ series engines, such as the ISBE4 CM850, ISX12/ISX11.9 CM2250, ISX15 CM2350 X101, and ISZ13 CM2150 Z105, also benefit from the use of the Studded Flange Cap Screw 4988169. These engines are designed for both on-highway and off-highway applications, requiring a reliable fastening solution to maintain performance and safety. The screw’s design ensures that flanges remain securely fastened under varying operational conditions.

QSB, QSC, QSL, QSX, and QSZ Series

• QSB6.7 M CM2250
• QSC8.3 CM2880 C102
• QSL9.3 CM2880 L113
• QSX15 CM2350 X105
• QSZ13 CM2150 Z101
• QSZ13 CM2150 Z102

The QSB, QSC, QSL, QSX, and QSZ series engines, including the QSB6.7 M CM2250, QSC8.3 CM2880 C102, QSL9.3 CM2880 L113, QSX15 CM2350 X105, and QSZ13 CM2150 variants, are equipped with the Studded Flange Cap Screw 4988169 to ensure flanges are tightly secured. These engines are used in a variety of applications, from agricultural to industrial, and the screw’s design helps maintain the structural integrity of the engine under different operational stresses.

L8.9 Series

• L8.9 CM2670 L134C

The L8.9 CM2670 L134C engine utilizes the Studded Flange Cap Screw 4988169 to secure flanges. This engine is designed for heavy-duty applications and requires a reliable fastening solution to maintain performance and durability.

X12 Series

• X12 CM2350 X119B

The X12 CM2350 X119B engine uses the Studded Flange Cap Screw 4988169 to ensure flanges are securely fastened. This engine is designed for specific applications where reliability and performance are critical.

Z13 Series

• Z13 Z108G

The Z13 Z108G engine employs the Studded Flange Cap Screw 4988169 to maintain the integrity of flange connections. This engine is engineered for specialized applications that demand high reliability and performance.

The Studded Flange Cap Screw 4988169 is a versatile and essential component for securing flanges in a wide range of Cummins engines, ensuring that these engines operate efficiently and reliably across various applications.

Role of Part 4988169 Studded Flange Cap Screw in Engine Systems

The 4988169 studded flange cap screw is integral to the assembly and functionality of various engine components. It ensures secure fastening and alignment, which is essential for the reliable operation of the engine.

Drive System

In the drive system, the 4988169 screw is used to fasten components such as the front gear to its housing. This secure attachment is vital for maintaining the precise alignment and rotational integrity of the gear, which directly influences the efficiency and performance of the drive mechanism.

Cooling System

Within the cooling system, the screw plays a role in attaching the thermostat housing. Proper fastening ensures that the thermostat is correctly positioned, allowing for accurate temperature regulation of the engine. This, in turn, helps prevent overheating and maintains optimal engine performance.

Fuel System

For the fuel system, the 4988169 screw is employed in securing the fuel filter location. A firmly attached fuel filter ensures that the fuel flow is consistent and free from contaminants, which is essential for the engine’s combustion process and overall efficiency.

Exhaust System

In the exhaust system, the screw is utilized to fasten the recirculation module. This secure attachment ensures that the recirculation of exhaust gases is managed effectively, contributing to reduced emissions and improved engine performance.

Engine Control Module

The engine control module (ECM) housing also benefits from the use of the 4988169 screw. Secure fastening of the ECM housing ensures that the module remains protected from environmental factors and vibrations, which is crucial for the accurate functioning of the engine’s electronic controls.

Fan Assembly

Lastly, in the fan assembly, the screw is used to attach the fan to its housing. This ensures that the fan operates efficiently, providing the necessary airflow for cooling various engine components, thereby contributing to the engine’s overall reliability and performance.

Conclusion

The 4988169 Studded Flange Cap Screw is a critical component in the maintenance and operation of commercial trucks and various Cummins engines. Its design and features ensure secure fastening, enhanced durability, and ease of installation, contributing to the overall efficiency and reliability of the vehicle and engine systems.