3918174
Oil Cooler Core Gasket
Cummins®

Introduction

The Oil Cooler Core Gasket (Part #3918174), manufactured by Cummins, is designed for use in commercial trucks. This gasket is crucial for sealing the oil cooler core, ensuring the efficient operation of the truck’s oil cooling system.

Basic Concepts of Oil Cooler Core Gaskets

An Oil Cooler Core Gasket is a sealing component used in the oil cooling system of engines. It is positioned between the oil cooler core and the surrounding housing to prevent oil leaks and maintain system integrity. The gasket ensures that engine oil passes through the cooler core without escaping, thereby facilitating effective heat dissipation ¹.

Role in Truck Operation

This Cummins part plays a role in maintaining the efficiency of the truck’s oil cooling system. By providing a secure seal, it helps in regulating the temperature of the engine oil, which is vital for the longevity and performance of the engine. Proper cooling prevents overheating, reduces wear on engine components, and enhances overall engine efficiency ².

Key Features

• Designed specifically for Cummins engines
• Made from durable materials to withstand high temperatures and pressures
• Precision-engineered to ensure a tight seal
• Compatible with specific oil cooler core models

Benefits

• Enhances the reliability of the oil cooling system
• Contributes to maintaining optimal engine oil temperature
• Reduces the risk of oil leaks and associated engine damage
• Supports prolonged engine life and performance

Troubleshooting and Maintenance

Regular inspection of the Oil Cooler Core Gasket is recommended to identify any signs of wear or damage. Common issues include gasket failure due to age, exposure to high temperatures, or improper installation. If a leak is detected, the gasket should be replaced promptly to prevent oil loss and potential engine damage. Ensuring the gasket is correctly installed and the oil cooling system is free from contaminants also contributes to the gasket’s longevity and effectiveness ³.

Compatibility of Cummins Oil Cooler Core Gasket Part 3918174

The Cummins Oil Cooler Core Gasket part number 3918174 is designed to fit a variety of Cummins engines, ensuring a secure seal between the oil cooler core and the engine block. This gasket is crucial for maintaining the integrity of the engine’s cooling system and preventing oil leaks. Below is a detailed description of the engines with which this gasket is compatible:

6 Series Engines

• 6B5.9
• 6C8.3

C Series Engines

• C GAS PLUS CM556
• C8.3 G
• G8.3
• G8.3 CM558
• GTA8.3 CM558

ISC Series Engines

• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250

ISL Series Engines

• ISL CM2150
• ISL CM554
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9.5 CM2880 L138

L Series Engines

• L GAS PLUS CM556
• L8.9
• L8.9 CM2670 L134C
• L8.9 L121
• L8.9G CMOH2.0 L125B
• L9 CM2670 L128B
• L9.3 L105
• L9.5 L117

This gasket is engineered to provide a reliable seal for these engines, ensuring optimal performance and longevity of the oil cooler system. It is important to verify the correct application of this gasket with the engine’s service manual or a certified technician to ensure compatibility and proper installation.

Integration with Engine Systems

1. Cooler and Engine Oil Systems:

   • The Oil Cooler Core Gasket is positioned between the oil cooler core and the engine block or oil filter housing. This placement is vital for the cooler to effectively regulate the temperature of the engine oil. By maintaining a tight seal, the gasket ensures that the oil circulates through the cooler without any leakage, which is important for the overall efficiency of the cooling system.

2. Cooler Engine Oil Kit:

   • When incorporated into a Cooler Engine Oil Kit, the gasket plays a role in enhancing the kit’s performance. It ensures that the oil passes through the cooler efficiently, contributing to the kit’s ability to maintain optimal engine oil temperatures under various operating conditions.

3. Engine Cooler and Gasket Sets:

   • In an Engine Cooler setup, the Oil Cooler Core Gasket works in conjunction with the Lower Engine Gasket Kit and Upper Engine Gasket Kit. These gaskets collectively ensure that all engine compartments are sealed properly, allowing the engine cooler to function without interference from oil leaks.

4. Filter and Lubricating Oil Filter Kit:

   • The gasket is also relevant in systems that include a Full Flow Oil Filter and Lubricating Oil Filter Kit. By ensuring a secure seal around the oil cooler, it supports the filter’s role in cleaning the oil, thus prolonging the life of the engine components.

5. Overhaul and Rebuild Kits:

   • During engine overhauls or rebuilds, the Oil Cooler Core Gasket is often included in Overhaul Kits and Rebuild Kits. Its role in these kits is to restore the seal around the oil cooler, which is necessary for the engine to operate efficiently post-overhaul.

6. On Board Spares and Tachometer Parts Kit:

   • In scenarios where On Board Spares are maintained or when integrating a Tachometer Parts Kit for engine monitoring, the gasket ensures that the oil cooling system remains functional and leak-free, which is essential for accurate engine performance monitoring.

7. PMM Piston Upgrade and Long Block:

   • When performing a PMM Piston Upgrade or working with a Long Block, the Oil Cooler Core Gasket is instrumental in ensuring that the upgraded or newly assembled engine maintains proper oil cooling. This is important for the longevity and performance of the piston and other internal components.

Conclusion

The Oil Cooler Core Gasket (Part #3918174) is a fundamental component in various engine systems, ensuring that the oil cooling process is efficient and leak-free. Its proper installation and maintenance are important for the overall health and performance of the engine.