4976436
Intake Manifold Gasket
Cummins®

The Cummins 4976436 Intake Manifold Gasket is a component designed specifically for heavy-duty truck engines. Its purpose is to ensure a secure seal between the intake manifold and the engine block, which is vital for the efficient operation of the engine. This gasket plays a significant role in maintaining the integrity of the engine’s air intake system, contributing to overall engine performance and efficiency ¹.

Basic Concepts of Intake Manifold Gaskets

An intake manifold gasket is a sealing component placed between the intake manifold and the engine block. Its primary function is to create an airtight seal, which prevents air leaks and ensures that the correct amount of air enters the combustion chamber. This, in turn, contributes to the engine’s overall performance and efficiency by maintaining the proper air-fuel ratio ².

Purpose of the 4976436 Intake Manifold Gasket

The 4976436 Intake Manifold Gasket is designed to seal the intake manifold to the engine block effectively. This seal is crucial for ensuring that air flows correctly into the engine without any leaks. Proper airflow is necessary for optimal combustion, which directly impacts engine performance, fuel efficiency, and emissions ³.

Key Features

The 4976436 Intake Manifold Gasket features a material composition that enhances its durability and performance. It is designed with precision to fit snugly between the intake manifold and the engine block, ensuring a secure seal. Additionally, the gasket may include unique attributes such as multi-layer construction or heat-resistant materials to withstand the high temperatures and pressures within the engine compartment ⁴.

Benefits

Using the 4976436 Intake Manifold Gasket offers several benefits. It provides improved engine efficiency by ensuring a proper seal, which helps maintain the correct air-fuel ratio. The gasket’s enhanced sealing properties reduce the risk of air leaks, which can lead to decreased performance and increased emissions. Furthermore, its durable construction contributes to increased longevity compared to other gaskets, making it a reliable choice for heavy-duty applications ¹.

Installation Process

Installing the 4976436 Intake Manifold Gasket requires careful attention to detail to ensure a secure and effective seal. Begin by cleaning the mating surfaces of the intake manifold and engine block to remove any debris or old gasket material. Place the gasket in position, ensuring it aligns correctly with the bolt holes and sealing surfaces. Tighten the intake manifold bolts in a specified sequence to avoid warping the gasket and compromising the seal ².

Common Issues and Troubleshooting

Common issues with intake manifold gaskets include leaks and failures, which can lead to decreased engine performance and increased emissions. If a leak is suspected, inspect the gasket for signs of damage or wear. Addressing issues promptly by replacing the gasket can prevent further complications and ensure the engine operates efficiently ³.

Maintenance Tips

To prolong the life of the 4976436 Intake Manifold Gasket, regular inspection and maintenance are recommended. Inspect the gasket during routine engine maintenance for signs of wear, damage, or leaks. Cleaning the mating surfaces before reinstallation can also help ensure a proper seal. Following the manufacturer’s replacement schedule can prevent unexpected failures and maintain optimal engine performance ⁴.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality, reliability, and innovation in the automotive and heavy-duty truck industry. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of various applications.

Cummins Intake Manifold Gasket 4976436 Compatibility

The Cummins Intake Manifold Gasket part number 4976436 is designed to fit seamlessly with various engine models, ensuring a secure seal between the intake manifold and engine block. This gasket is crucial for maintaining engine efficiency and preventing leaks.

ISV (Nissan)

For the ISV engines by Nissan, the 4976436 intake manifold gasket is engineered to match the specific design and dimensions of the intake manifold. This ensures a precise fit, which is essential for optimal engine performance and longevity. The gasket’s material is selected to withstand the high temperatures and pressures typical in engine environments, providing a reliable seal that prevents air and coolant leaks.

When installing this gasket, it is important to follow the manufacturer’s guidelines to ensure proper alignment and seating, which is critical for the gasket’s effectiveness. The compatibility of the 4976436 gasket with the ISV engines highlights Cummins’ commitment to providing high-quality components that meet the stringent requirements of modern engines.

Role of Part 4976436 Intake Manifold Gasket in Engine Systems

The 4976436 Intake Manifold Gasket is an essential component that ensures the proper functioning of various engine systems by providing a seal between the intake manifold and the engine block. This seal is vital for maintaining the integrity of the air and fuel mixture as it enters the combustion chamber.

Integration with Engine Components

• Air Intake Manifold: The intake manifold gasket fits snugly between the air intake manifold and the engine block. This ensures that the air-fuel mixture is delivered efficiently to the cylinders without any leaks, which could otherwise lead to performance issues.

• Exhaust Recirculation Valve Kit: When integrated with the Exhaust Recirculation Valve (EGR) system, the intake manifold gasket helps in sealing the recirculated exhaust gases. This is important for reducing emissions and improving engine efficiency.

• Front Crankshaft Seal Kit: Although the crankshaft seal kit is primarily responsible for sealing the front of the crankshaft, a well-fitted intake manifold gasket ensures that the engine operates under optimal conditions, indirectly supporting the crankshaft’s function.

• Fuel Pump Kit: Efficient fuel delivery is paramount for engine performance. The intake manifold gasket, by ensuring a tight seal, helps maintain the correct air-fuel ratio, which is critical for the fuel pump kit to operate effectively.

• Gasket Kit: When used in conjunction with a comprehensive gasket kit, the intake manifold gasket plays a role in the overall sealing strategy of the engine, contributing to its durability and performance.

• Manifold, Air Intake: The gasket is specifically designed to fit between the manifold and the air intake system, ensuring that the air entering the engine is clean and metered correctly.

• Service Kit: During engine servicing, the intake manifold gasket is often replaced to ensure that the engine continues to operate efficiently. Its condition is a key factor in the overall success of the service kit.

• Turbocharger Arrangement: In turbocharged engines, the intake manifold gasket must withstand higher pressures. It ensures that the pressurized air from the turbocharger is sealed properly, enhancing engine performance.

• Turbocharger Kit: Similar to the turbocharger arrangement, the gasket must be compatible with the increased airflow and pressure that a turbocharger kit introduces, ensuring no leaks occur.

• Upper Engine Gasket Kit: The intake manifold gasket is a component of the upper engine gasket kit, which aims to seal various upper engine components, ensuring they work in harmony.

Conclusion

In summary, the 4976436 Intake Manifold Gasket is a fundamental component that interacts with multiple engine systems to ensure optimal performance, efficiency, and durability. Its role in maintaining the integrity of the air and fuel mixture, as well as its integration with various engine components, underscores its importance in heavy-duty truck engines.