3687068
Gear Cover
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$299.95 $356.94

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 Cummins 3687068 Gear Cover is a component designed for use in heavy-duty trucks. It serves to encase and protect the internal components of the transmission system, ensuring the smooth operation of the vehicle. This part is integral to maintaining the efficiency and reliability of the truck’s transmission.

Basic Concepts of a Gear Cover

A gear cover is a protective housing that encases the gears and other internal components within a transmission system. Its primary functions include shielding these components from external contaminants, retaining lubrication within the system, and providing a structural framework that supports the transmission’s operation. In the context of a truck, the gear cover plays a role in integrating with the transmission system by offering a secure environment for the gears to operate efficiently 1.

Purpose of the Cummins 3687068 Gear Cover

The Cummins 3687068 Gear Cover is designed to play a role in the operation of a truck by protecting the internal components of the transmission from dust, dirt, and other contaminants. It also helps in maintaining the lubrication system by ensuring that the lubricants remain within the transmission, thus reducing the risk of wear and tear on the gears and other moving parts 2.

Key Features

This Cummins part is constructed with durability and efficiency in mind. It is made from high-quality materials that offer resistance to wear and corrosion. The design includes robust sealing mechanisms to prevent leaks and ensure that the lubricants stay within the transmission system. Unique design elements may include reinforced areas for added strength and precision-machined surfaces to ensure a proper fit and function within the transmission system.

Benefits of Using the Cummins 3687068 Gear Cover

Utilizing the Cummins 3687068 Gear Cover provides several advantages. Its durable construction contributes to the longevity of the transmission system. The effective sealing mechanisms help in maintaining the integrity of the lubrication system, which is vital for the smooth operation of the transmission. Additionally, the gear cover’s design enhances the overall efficiency of the transmission by providing a secure and contaminant-free environment for the internal components.

Installation Process

Installing the Cummins 3687068 Gear Cover requires careful attention to detail. Preparatory steps include ensuring that the transmission system is clean and free from any contaminants. The necessary tools for installation should be gathered beforehand. The installation process involves aligning the gear cover with the transmission, securing it in place, and checking for proper sealing and fit. Detailed instructions should be followed to ensure a correct and secure installation.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 3687068 Gear Cover is important for ensuring its continued effectiveness. This includes periodic inspections for signs of wear, damage, or leaks. Common issues may involve seal failures or contamination within the transmission system. Troubleshooting tips can include checking for proper alignment and fit, ensuring that all fasteners are secure, and verifying that the sealing mechanisms are intact and functioning correctly.

Manufacturer: Cummins

Cummins Inc. is a well-established company in the automotive industry, known for its commitment to quality and innovation in manufacturing truck components. With a rich history of providing reliable and high-performance parts, Cummins has built a reputation for excellence. The company’s dedication to advancing technology and improving the efficiency of truck components is evident in its product line, including the Cummins 3687068 Gear Cover.

Gear Cover 3687068 Compatibility with Cummins Engines

The Gear Cover part number 3687068, manufactured by Cummins, is designed to fit a range of their engines. This part is integral to the engine’s operation, providing necessary protection and support for the internal components. Below is a detailed look at the compatibility of this gear cover with various Cummins engines:

ISX15 Series

  • ISX15 CM2250
  • ISX15 CM2250 SN
  • ISX15 CM2350 X101

The Gear Cover 3687068 is specifically engineered to fit the ISX15 series engines, including the ISX15 CM2250, ISX15 CM2250 SN, and ISX15 CM2350 X101 models. These engines are known for their robust performance and reliability, making the gear cover an essential component in maintaining their operational integrity.

QSX15 Series

  • QSX15 CM2250 ECF
  • QSX15 CM2350 X105

Similarly, the Gear Cover 3687068 is compatible with the QSX15 series engines, specifically the QSX15 CM2250 ECF and QSX15 CM2350 X105 models. These engines are designed for heavy-duty applications, and the gear cover plays a crucial role in protecting the internal gears and ensuring smooth operation.

X15 Series

  • X15 CM2350 X116B
  • X15 CM2350 X123B

The Gear Cover 3687068 also fits the X15 series engines, including the X15 CM2350 X116B and X15 CM2350 X123B models. These engines are engineered for versatility and efficiency, and the gear cover is a critical component in maintaining their performance and longevity.

By ensuring the correct fitment of the Gear Cover 3687068, users can maintain the operational efficiency and reliability of their Cummins engines across these various series and models.

Role of Part 3687068 Gear Cover in Engine Systems

The part 3687068 Gear Cover is an essential component in the assembly and operation of engine systems, specifically when integrated with the front gear cover. This gear cover serves as a protective enclosure for the internal gear train, safeguarding it from contaminants, moisture, and physical damage.

When installed, the gear cover interfaces directly with the front gear cover, which is responsible for housing the front section of the gear train. This includes critical components such as the timing gears, chain, or belt, depending on the engine design. The gear cover ensures that these components operate within a sealed environment, maintaining proper lubrication and reducing the risk of wear and tear.

Additionally, the gear cover plays a role in managing engine noise and vibration. By enclosing the gear train, it helps to dampen the sound produced during operation, contributing to a quieter engine environment. Furthermore, the cover assists in containing any potential leaks from the gear train, preventing oil from escaping and ensuring that lubrication levels remain consistent 3.

Conclusion

In summary, the Cummins 3687068 Gear Cover is integral to the functionality and longevity of the engine system, working in conjunction with the front gear cover to protect and optimize the performance of the internal gear components.


  1. Harrison, Matthew. Controlling Noise and Vibration in Road Vehicles. SAE International, 2004.

  2. Lakshminarayanan, P A, and Yogesh V Aghav. Modelling Diesel Combustion. Springer Science, 2010.

  3. Kasab, John, and Andrea Strzelec. Automotive Emissions Regulations and Exhaust Aftertreatment Systems. SAE International, 2020.

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SPECIFICATIONS

Package Dimensions
27.3 x 26.6 x 3.13 in
Weight
10.85 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.