5447591
Exhaust Manifold Gasket
Cummins®

Introduction

This article provides an overview of the Exhaust Manifold Gasket Part #5447591 manufactured by Cummins. It covers the basic concepts, purpose, key features, benefits, and maintenance suggestions related to this component.

Basic Concepts

An Exhaust Manifold Gasket is a sealing component used in the exhaust system of an engine. It is positioned between the exhaust manifold and the engine block or cylinder head. The primary function of the gasket is to create a seal that prevents exhaust gases from leaking into the engine compartment ¹.

Purpose of the Exhaust Manifold Gasket

The Exhaust Manifold Gasket by Cummins plays a role in ensuring that exhaust gases are directed efficiently from the engine cylinders to the exhaust system. By maintaining a proper seal, it helps in reducing emissions and improving engine performance. It also contributes to the overall durability and reliability of the exhaust system ².

Key Features

• Made from high-quality materials to withstand high temperatures and pressures.
• Designed specifically for Cummins engines to ensure compatibility and optimal performance.
• Provides a reliable seal that prevents exhaust leaks.
• Engineered to endure the rigors of heavy-duty truck operations.

Benefits

• Enhances engine efficiency by ensuring proper exhaust flow.
• Reduces the risk of exhaust leaks, which can lead to decreased performance and increased emissions.
• Contributes to the longevity of the exhaust system by providing a durable seal.
• Helps maintain engine performance and reliability in heavy-duty applications.

Troubleshooting and Maintenance

Regular inspection of the Exhaust Manifold Gasket is recommended to identify any signs of wear or damage. Common issues include cracks, warping, or charring, which can compromise the seal. If any defects are noticed, the gasket should be replaced to prevent exhaust leaks and potential engine damage. Proper torque specifications should be followed during installation to ensure a secure fit ³.

Compatibility

The Exhaust Manifold Gasket part number 5447591 is designed to fit a variety of Cummins engines, ensuring a proper seal between the exhaust manifold and the engine block. Here is a detailed look at the engines with which this gasket is compatible:

B Series Engines

• 6B5.9
• B4.5 CM2350 B129B
• B5.6 CM2670 B152B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• F3.8 CM2350 F128C

ISB Series Engines

• ISB (Chrysler)
• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

ISD Series Engines

• ISD4.5 CM2220 D108

ISM Series Engines

• ISM CM570

This gasket is engineered to provide a reliable seal, preventing exhaust leaks and ensuring optimal engine performance. It is crucial to use the correct gasket for each specific engine model to maintain the integrity of the exhaust system.

Role of Part 5447591 Exhaust Manifold Gasket in Engine Systems

The Exhaust Manifold Gasket, identified by part number 5447591, is an essential component in ensuring the efficient and safe operation of various engine systems. This gasket is specifically designed to create a seal between the exhaust manifold and the engine block, preventing exhaust gases from leaking into the engine compartment.

Integration with Engine Components

1. Exhaust Manifold and Engine Block:

   • The primary function of the Exhaust Manifold Gasket is to seal the connection between the exhaust manifold and the engine block. This seal is vital for maintaining the integrity of the exhaust system, ensuring that exhaust gases are directed properly through the manifold and into the exhaust system rather than escaping into the engine bay.

2. Turbocharger Arrangement:

   • In turbocharged engines, the Exhaust Manifold Gasket works in conjunction with the turbocharger arrangement. It ensures that the exhaust gases flow smoothly from the engine to the turbocharger, enhancing the efficiency of the turbocharging process. A proper seal prevents any loss of exhaust pressure, which is essential for optimal turbocharger performance.

3. Exhaust Recirculation System:

   • The gasket also plays a role in the Exhaust Recirculation (EGR) system. By maintaining a tight seal, it ensures that the recirculated exhaust gases are properly managed and do not leak. This is particularly important for the Exhaust Recirculation Cooler Kit and the overall EGR Plumbing, as any leaks can disrupt the recirculation process and affect engine performance and emissions.

4. Upper and Lower Engine Gasket Kits:

   • When considering the Upper Engine Gasket Kit and Lower Engine Gasket Kit, the Exhaust Manifold Gasket is a complementary component. It ensures that the upper and lower sections of the engine, including the cylinder head and block, are properly sealed, contributing to the overall gasket integrity of the engine.

5. Overhaul and Service Kits:

   • During engine overhauls or service procedures, the Exhaust Manifold Gasket is often included in Overhaul Kits and Service Kits. Its replacement ensures that the engine maintains its sealing efficiency post-overhaul, which is essential for the engine’s longevity and performance.

6. Oil Cooler Repair Kit:

   • In engines equipped with an oil cooler, the Exhaust Manifold Gasket indirectly supports the Oil Cooler Repair Kit by ensuring that the exhaust system operates efficiently. This, in turn, helps maintain optimal engine temperatures, which is crucial for the oil cooler’s function.

7. Mounting and Hardware Kits:

   • The gasket is also used in conjunction with Mounting and Hardware Kits to secure the exhaust manifold in place. Proper sealing by the gasket ensures that the manifold remains firmly attached and functions as intended.

Conclusion

In summary, the Exhaust Manifold Gasket (part 5447591) is a fundamental component in various engine systems, ensuring efficient operation and maintaining the integrity of the exhaust path. Its role extends beyond simple sealing, impacting turbocharger performance, EGR system efficiency, and overall engine gasket integrity.