3021704
Gear Cover Gasket
Cummins®

AVAILABLE

Cummins®

2 are currently available

Ships within 2-4 business days

$41.95 $49.92

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

The 3021704 Gear Cover Gasket is a component produced by Cummins, a well-established manufacturer in the automotive industry. This gasket is designed to serve a specific function within the gear system of heavy-duty trucks. Its role is to ensure a secure seal between the gear cover and the transmission housing, which is vital for the proper operation and longevity of the truck’s transmission system. Cummins is recognized for its commitment to quality and durability in automotive components, making the 3021704 Gear Cover Gasket a reliable choice for maintaining the integrity of the gear system 1.

Basic Concepts of Gear Cover Gaskets

A gear cover gasket is a sealing component placed between the gear cover and the transmission housing. Its primary function is to prevent the leakage of lubricants and to keep contaminants out of the gear system. Maintaining a seal within the gear system is important for ensuring the smooth operation of the transmission, as it helps to preserve the lubrication necessary for the gears to function efficiently and reduces the risk of damage from external debris 2.

Purpose of the 3021704 Gear Cover Gasket

The 3021704 Gear Cover Gasket plays a role in the operation of a truck by providing a reliable seal that maintains the integrity of the gear system. This gasket contributes to the efficiency and reliability of the gear system by ensuring that lubricants remain within the system and that the gears are protected from contaminants. A properly sealed gear system operates more smoothly and is less prone to wear and failure, which can lead to increased vehicle uptime and reduced maintenance costs 3.

Key Features

The 3021704 Gear Cover Gasket is characterized by several key features that enhance its performance. It is constructed from materials that are resistant to the high temperatures and pressures within the gear system. The design specifications of the gasket ensure a precise fit, which is important for creating an effective seal. Additionally, the gasket may possess unique attributes such as multi-layered construction or reinforced edges, which contribute to its durability and effectiveness in sealing the gear cover.

Benefits

Using the 3021704 Gear Cover Gasket offers several benefits. It provides improved sealing, which helps to maintain the proper level of lubrication within the gear system. The gasket’s longevity is enhanced by its resistance to wear and tear, which can be attributed to its material composition and design. These factors contribute to the overall reliability of the gear system and can lead to cost savings over time by reducing the frequency of gasket replacements.

Installation Process

Installing the 3021704 Gear Cover Gasket requires careful attention to detail to ensure a secure fit. The process involves cleaning the mating surfaces to remove any old gasket material or contaminants, positioning the new gasket correctly, and then securing the gear cover in place. Tools such as gasket scrapers and torque wrenches may be required. It is important to follow the manufacturer’s guidelines for torque specifications to avoid over-tightening, which can damage the gasket, or under-tightening, which can lead to leaks.

Maintenance Tips

Regular maintenance of the 3021704 Gear Cover Gasket is important for ensuring optimal performance. Inspection intervals should be established based on the manufacturer’s recommendations or the operating conditions of the vehicle. Signs of wear, such as cracks or hardening of the gasket material, may indicate the need for replacement. Keeping the gear system clean and well-lubricated can also contribute to the longevity of the gasket.

Troubleshooting Common Issues

Common problems associated with gear cover gaskets include leaks or failure of the seal. If a leak is detected, it is important to identify the source of the leak and assess the condition of the gasket. Troubleshooting steps may involve inspecting the gasket for damage, checking the torque of the gear cover bolts, and ensuring that the mating surfaces are clean and free of debris. In some cases, replacing the gasket may be necessary to resolve the issue.

Cummins: A Brief Overview

Cummins is a manufacturer with a long-standing reputation in the industry for producing high-quality automotive components. The company has a history of innovation and commitment to excellence, which is reflected in the design and performance of their products. Cummins’ dedication to quality is evident in the 3021704 Gear Cover Gasket, which is engineered to meet the demanding requirements of heavy-duty truck applications.

Gear Cover Gasket 3021704 Compatibility with Cummins Engines

The Gear Cover Gasket part number 3021704, manufactured by Cummins, is designed to fit a variety of Cummins engines. This gasket is crucial for ensuring a proper seal between the gear cover and the engine block, preventing leaks and maintaining optimal engine performance.

G855 and NH/NT 855 Engines

The Gear Cover Gasket 3021704 is compatible with the G855 and NH/NT 855 engines. These engines are part of the Cummins G-series, known for their robust design and reliability in heavy-duty applications. The gasket ensures that the gear cover is securely sealed, protecting the internal components from contaminants and ensuring smooth operation.

N14 CELECT and N14 MECHANICAL Engines

For the N14 CELECT and N14 MECHANICAL engines, the Gear Cover Gasket 3021704 is also a suitable fit. The N14 series is a staple in the Cummins lineup, offering a balance of power and efficiency. This gasket is essential in maintaining the integrity of the gear cover seal, which is critical for the longevity and performance of these engines.

QSNT14 CM876 N102 Engine

The QSNT14 CM876 N102 engine, another variant in the Cummins portfolio, also benefits from the use of the Gear Cover Gasket 3021704. This engine is designed for specific applications requiring high performance and durability. The gasket ensures that the gear cover remains sealed, protecting the internal components and maintaining the engine’s efficiency.

Role of Part 3021704 Gear Cover Gasket in Engine Systems

The Part 3021704 Gear Cover Gasket is an essential component in maintaining the integrity and functionality of various engine systems. Its primary role is to provide a seal between the gear cover and the engine, preventing oil leaks and ensuring that the lubrication system operates efficiently.

Integration with Engine Components

  1. Base Engine Mounting and Engine Mount: The Gear Cover Gasket works in conjunction with the base engine mounting and engine mount to ensure that the engine remains securely in place. By sealing the gear cover, it helps maintain the structural integrity of the engine mounting system.

  2. Front Gear and EBM-Cover: In systems where the front gear and EBM-cover are utilized, the Gear Cover Gasket ensures that these components remain properly lubricated without any oil seepage. This is vital for the smooth operation and longevity of the front gear mechanism.

  3. Engine Mount and Engine Supports: The gasket plays a supportive role in the engine mount and engine supports by maintaining a consistent oil level within the gear cover. This consistency is important for the stability and performance of the engine supports.

  4. Front Engine Support and Gear Case Cover Mounting: When integrated with the front engine support and gear case cover mounting, the Gear Cover Gasket helps in distributing the load evenly across the engine components, reducing the risk of mechanical failure due to oil leaks.

  5. Gear Cover Mounting and Gear Mounting Cover: The gasket is specifically designed to fit between the gear cover mounting and the gear mounting cover, ensuring a tight seal that prevents oil from escaping and contaminants from entering the gear system.

  6. Engine Overhaul Gasket Set and Set Engine Gasket: During an engine overhaul, the Gear Cover Gasket is often part of a comprehensive gasket set. It ensures that all critical seals within the engine are maintained, contributing to the overall success of the overhaul process.

  7. Mounting Engine and MTG: In applications where the mounting engine and MTG (Mounting) are used, the Gear Cover Gasket helps in maintaining the seal integrity around the gear cover, which is essential for the proper functioning of the MTG system.

By understanding the role of the Part 3021704 Gear Cover Gasket within these engine systems, engineers and mechanics can better appreciate its importance in ensuring the engine’s performance, durability, and reliability.

Conclusion

The 3021704 Gear Cover Gasket is a critical component in the maintenance and operation of heavy-duty truck transmissions and engine systems. Its role in providing a secure seal between the gear cover and the transmission housing or engine block is essential for preventing leaks, maintaining lubrication, and protecting internal components from contaminants. The gasket’s design, featuring materials resistant to high temperatures and pressures, ensures durability and effectiveness. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part, contributing to the overall reliability and efficiency of the vehicle.


  1. Bell, Joseph A. Modern Diesel Technology Electricity Electronics. Delmar Cengage Learning, 2014.

  2. Ferrari, Alessandro, and Pietro Pizzo. Injection Technologies: Mixture Formation Strategies. SAE International, 2022.

  3. Osgood, Libby, Gayla Cameron, and Emma Christensen. Engineering Mechanics: Statics. Creative Commons, 2024.

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SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
22.4 x 22.4 x 0.25 in
Weight
0.13 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.