3929011
Lubricating Oil Cooler Cover Gasket
Cummins®

This article provides an overview of the Lubricating Oil Cooler Cover Gasket (Part #3929011) manufactured by Cummins. It explains the basic concepts, purpose, key features, benefits, and maintenance suggestions related to this component.

Basic Concepts

A Lubricating Oil Cooler Cover Gasket is a sealing component used in the oil cooling system of heavy-duty trucks. It ensures a tight seal between the oil cooler cover and the engine block, preventing oil leaks and maintaining the efficiency of the cooling system ¹.

Purpose and Function

The 3929011 Lubricating Oil Cooler Cover Gasket plays a role in the oil cooling system by providing a seal that prevents oil from leaking out of the oil cooler. This helps maintain the proper lubrication and cooling of the engine oil, which is vital for the overall performance and longevity of the engine ².

Key Features

• Designed specifically for use with Cummins engines.
• Made from high-quality materials to ensure durability and reliability.
• Engineered to withstand high temperatures and pressures typical in heavy-duty truck applications.
• Provides an effective seal to prevent oil leaks.

Benefits

• Enhances the efficiency of the oil cooling system.
• Reduces the risk of oil leaks, which can lead to engine damage.
• Contributes to the overall reliability and performance of the engine.
• Easy to install, reducing downtime during maintenance.

Troubleshooting and Maintenance

Regular inspection of the Lubricating Oil Cooler Cover Gasket is recommended to ensure it remains in good condition. Signs of wear or damage should be addressed promptly to prevent oil leaks. During maintenance, it is advisable to replace the gasket if there are any indications of deterioration to ensure the continued efficiency of the oil cooling system ³.

Fitment for Cummins Engines

The Cummins part number 3929011, a Lubricating Oil Cooler Cover Gasket, is designed to fit a variety of Cummins engines. This gasket ensures a proper seal between the oil cooler cover and the engine block, preventing oil leaks and maintaining optimal engine performance.

ISC Series Engines

The ISC series engines include:

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

ISL Series Engines

The ISL series engines compatible with the gasket are:

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

L Series Engines

The L series engines that fit the gasket include:

• 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

QSC Series Engines

The QSC series engines that are compatible with the gasket are:

• QSC8.3 CM2880 C102
• QSC8.3 CM554
• QSC8.3 CM850 (CM2850)

Role of Part 3929011 Lubricating Oil Cooler Cover Gasket in Engine Systems

The 3929011 Lubricating Oil Cooler Cover Gasket is a component in maintaining the integrity and efficiency of various engine systems. This gasket is specifically designed to seal the lubricating oil cooler, preventing oil leaks and ensuring optimal performance of the cooling system.

Integration with Engine Components

1. Cooler: The primary function of the 3929011 gasket is to create a secure seal between the oil cooler and its cover. This ensures that the cooling process is efficient, allowing the engine oil to be properly cooled before it is recirculated.

2. Engine Oil System: By sealing the oil cooler, the gasket plays a significant role in the engine oil system. It helps maintain the correct oil pressure and temperature, which are vital for the lubrication of moving parts within the engine.

3. Engine Gasket Set Lower: When installing or replacing the lower engine gasket set, the 3929011 gasket must be correctly positioned to ensure a comprehensive seal across all critical points. This is important for the overall integrity of the lower engine assembly.

4. Head and Oil Filter Cooler: The gasket also interacts with the engine head and oil filter cooler. Proper sealing here prevents any cross-contamination between the cooling and lubrication systems, ensuring each system operates within its designed parameters.

5. Kit and PMM Piston Upgrade: During engine upgrades, such as installing a PMM piston upgrade, the 3929011 gasket must be inspected and replaced if necessary. This ensures that the upgraded components function correctly within the revised engine dynamics.

6. Long Block: In a long block assembly, the 3929011 gasket is a small but vital part of the overall sealing strategy. It ensures that the long block, which includes the engine block, crankshaft, pistons, and other core components, operates efficiently.

7. Lower Engine Gasket Kit: When using a lower engine gasket kit, the 3929011 gasket is often included to ensure a complete seal for the lower portion of the engine. This is essential for maintaining the engine’s performance and longevity.

8. Lower Engine Gasket Set: Similar to the lower engine gasket kit, the lower engine gasket set includes the 3929011 gasket to provide a comprehensive sealing solution for the lower engine components.

9. Overhaul Kit: During an engine overhaul, the 3929011 gasket should be replaced as part of the overhaul kit. This ensures that all seals are fresh and intact, contributing to the engine’s restored performance.

10. Rebuild Kit: In a rebuild kit, the 3929011 gasket is a standard component. It ensures that during the rebuild process, all sealing surfaces are correctly addressed, leading to a reliable and efficient engine post-rebuild.

11. Upper Engine Gasket Kit: Although the 3929011 gasket is primarily associated with the lower engine components, its proper installation impacts the entire engine, including the upper components. Ensuring a good seal at the oil cooler affects the overall engine balance and performance.

Conclusion

The Lubricating Oil Cooler Cover Gasket (Part #3929011) is a critical component in the maintenance and efficiency of Cummins engines. Regular inspection and timely replacement of this part ensure the continued performance and reliability of the engine’s oil cooling system.