3020943
Exhaust Manifold Gasket
Cummins®

AVAILABLE

Cummins®

More than 10 are currently available

Ships within 2-4 business days

$11.95 $14.22

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

Introduction

The Exhaust Manifold Gasket 3020943, manufactured by Cummins, is a critical component designed to facilitate the operation of commercial trucks. This gasket ensures the efficient functioning of the engine by sealing the connection between the engine’s exhaust manifold and the exhaust pipe. Cummins, a renowned name in the automotive industry, produces this gasket with a focus on reliability and performance.

Basic Concepts of Exhaust Manifold Gaskets

An Exhaust Manifold Gasket is a sealing component that fits between the engine’s exhaust manifold and the exhaust pipe. Its primary function is to create a tight seal, preventing exhaust gases from leaking out of the engine system. This seal is essential for maintaining the efficiency of the exhaust system, ensuring that exhaust gases are directed properly away from the engine and out through the exhaust pipe. The gasket operates under high temperatures and pressures, making its material and design critical for its effectiveness and longevity 1.

Role of the Exhaust Manifold Gasket in Truck Operation

The Exhaust Manifold Gasket 3020943 plays a significant role in the efficient operation of a truck’s engine. By providing a secure seal between the exhaust manifold and the exhaust pipe, it helps maintain the flow of exhaust gases, which is vital for engine performance. This gasket also prevents leaks, which can lead to decreased engine efficiency and increased emissions. Furthermore, by ensuring a proper seal, the gasket contributes to the overall performance and reliability of the truck’s engine 2.

Key Features of the Exhaust Manifold Gasket 3020943

The Exhaust Manifold Gasket 3020943 is characterized by its specific features that enhance its performance and durability. It is made from materials that can withstand high temperatures and pressures, ensuring it remains intact and effective under demanding conditions. The design of the gasket is tailored to fit precisely between the exhaust manifold and the exhaust pipe, providing a reliable seal. Additionally, any unique attributes of this gasket, such as special coatings or reinforcements, further contribute to its performance and longevity 3.

Benefits of Using the Exhaust Manifold Gasket 3020943

Utilizing the Exhaust Manifold Gasket 3020943 offers several advantages. It contributes to improved engine efficiency by ensuring that exhaust gases are properly directed away from the engine. This gasket also helps in reducing emissions by preventing leaks, which can lead to the release of unburned fuel and other pollutants. Furthermore, its durable construction ensures long-term performance, reducing the need for frequent replacements. Overall, the Exhaust Manifold Gasket 3020943 enhances the durability and performance of the truck’s engine.

Troubleshooting and Maintenance

Common issues associated with Exhaust Manifold Gaskets include wear or failure due to exposure to high temperatures and pressures. Signs of a failing gasket may include exhaust leaks, decreased engine performance, or increased emissions. Regular inspection and maintenance are recommended to ensure the longevity and optimal performance of the gasket. Replacement procedures should be carried out according to manufacturer guidelines to ensure a proper fit and seal. Preventive measures, such as using high-quality gaskets and performing regular engine maintenance, can help avoid premature failure.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and excellence, Cummins has established a strong reputation in the automotive industry for producing high-quality components for commercial vehicles. The company’s commitment to quality and performance is evident in its wide range of products, including the Exhaust Manifold Gasket 3020943, which is designed to meet the demanding requirements of commercial truck engines.

Compatibility with Cummins Engines

The Exhaust Manifold Gasket part number 3020943, manufactured by Cummins, is designed to fit a variety of Cummins engines. This gasket is a critical component that ensures a proper seal between the exhaust manifold and the engine block, preventing exhaust leaks and maintaining optimal engine performance.

G855 Series

The G855 series includes the following engines:

  • G855
  • G855 CM558
  • GTA855 CM558 (CM2358)
  • G101

These engines are part of the G855 family, and the gasket 3020943 is specifically engineered to fit their exhaust manifold configurations.

N14 Series

The N14 series encompasses a range of engines, each with unique features and applications:

  • N14 CELECT
  • N14 CELECT PLUS
  • N14 G
  • N14 MECHANICAL

The Exhaust Manifold Gasket 3020943 is compatible with all variants of the N14 series, ensuring a reliable seal for each engine type.

NH/NT 855 Series

The NH/NT 855 series includes:

  • NH/NT 855

This series features robust engines designed for heavy-duty applications, and the gasket 3020943 is tailored to meet the sealing requirements of these engines.

QSN14 Series

The QSN14 series includes:

  • QSN14 CM876 N103
  • QSNT14 CM876 N102

These engines are equipped with advanced technology for enhanced performance and efficiency. The gasket 3020943 is designed to fit seamlessly with the exhaust manifold of these engines, ensuring a secure and durable seal.

Integration with Engine Components

The Exhaust Manifold Gasket (Part 3020943) is an essential component in the arrangement of various engine systems, ensuring the efficient and reliable operation of the engine. Here’s how it integrates with the provided components:

  1. Exhaust Manifold and Mounting:

    • The Exhaust Manifold Gasket fits between the exhaust manifold and the engine block. This sealing arrangement is vital for maintaining the integrity of the exhaust path, preventing leaks that could lead to performance issues or safety hazards.
  2. Turbocharger Systems:

    • In turbocharged engines, the gasket plays a role in the Turbocharger arrangement. It ensures a secure seal between the exhaust manifold and the turbocharger, which is critical for maintaining turbo efficiency and preventing exhaust gas leaks that could affect turbocharger performance.
  3. Engine Gasket Set and Overhaul Kits:

    • When included in an Engine Gasket Set or an Overhaul Kit, the Exhaust Manifold Gasket contributes to the comprehensive sealing solution required during engine maintenance or rebuilds. It ensures that all exhaust pathways are properly sealed, contributing to the engine’s overall performance and longevity.
  4. Exhaust Connection and Manifold Kits:

    • The gasket is a key component in Exhaust Connection and Manifold Kits. It provides the necessary seal at the junction of the exhaust manifold and the engine, facilitating smooth exhaust flow and reducing the risk of harmful emissions escaping into the engine bay.
  5. Single Head Gasket Set and Engine Spares Kit:

    • Although primarily focused on cylinder head sealing, a Single Head Gasket Set or Engine Spares Kit may include the Exhaust Manifold Gasket to offer a more complete solution for engine sealing requirements. This ensures that all potential leak points are addressed during maintenance procedures.
  6. Tachometer Parts Kit and Turbocharger Conversion Kit:

    • In specialized kits such as Tachometer Parts Kits or Turbocharger Conversion Kits, the Exhaust Manifold Gasket may be included to ensure that the modifications do not introduce new leak points. This is particularly important in high-performance or modified engines where exhaust efficiency is paramount.

Summary of Component Interaction

The Exhaust Manifold Gasket (Part 3020943) is a fundamental component in the sealing strategy of various engine systems. Its proper installation and condition are essential for maintaining engine efficiency, performance, and safety. Whether part of a routine maintenance kit or a high-performance upgrade, the gasket’s role in ensuring a secure and leak-free exhaust path cannot be overstated.

Conclusion

The Exhaust Manifold Gasket 3020943 by Cummins is a vital component in the operation of commercial truck engines. Its role in sealing the connection between the exhaust manifold and the exhaust pipe ensures efficient engine performance, reduces emissions, and contributes to the overall reliability of the engine. Regular maintenance and proper installation are crucial for maximizing the benefits of this part.


  1. Lakshminarayanan, P. A., & Kumar, Avinash. (2020). Design and Development of Heavy Duty Diesel Engines: A Handbook. Springer Nature.

  2. Lakshminarayanan, P. A., & Agarwal, Avinash Kumar. (2019). Design and Development of Heavy Duty Diesel Engines: A Handbook. Springer.

  3. Sheng, Gang. (2012). Vehicle Noise, Vibration and Sound Quality. SAE International.

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SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
6.5 x 5.5 x 0.01 in
Weight
0.049 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.