3942135
Filler Cap
Cummins®

Name: 3942135 Cummins | Filler Cap
Brand: Cummins
SKU: 3942135
Price: 2.29 USD
Availability: InStock
Rating: 5 (1 reviews)

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Genuine OEM Part

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.

Manufacturer Warranty*

We honor the warranty provided by the original equipment manufacturer.

DESCRIPTION

Introduction

The Cummins 3942135 Filler Cap is a critical component in the fuel systems of commercial trucks, designed to facilitate secure and efficient refueling. This part ensures the integrity and security of the fuel system, contributing to the vehicle’s overall performance and reliability ¹.

Purpose and Function

The primary role of the Cummins 3942135 Filler Cap is to provide a secure closure for the fuel tank, allowing for the introduction of fuel while preventing spills and contamination. It maintains the pressure within the fuel tank, which is essential for the proper operation of the fuel system. Additionally, it protects the fuel from contamination by keeping out debris and moisture ².

Key Features

Constructed with durability and performance in mind, the Cummins 3942135 Filler Cap is made from high-quality materials resistant to wear and corrosion. Its design includes a locking mechanism for a secure fit and a venting system for safe pressure release during refueling ³.

Benefits

The use of the Cummins 3942135 Filler Cap enhances the security of the fuel system, improves ease of use during refueling, and ensures long-term reliability due to its durable construction.

Installation and Compatibility

Proper installation according to the manufacturer’s guidelines is crucial for the effective function of the Cummins 3942135 Filler Cap. Compatibility with various Cummins engine models and other truck makes should be verified for optimal performance.

Maintenance and Troubleshooting

Regular maintenance, including checking for wear or damage and ensuring clean sealing surfaces, is recommended to maintain the effectiveness of the Cummins 3942135 Filler Cap. Common issues like difficulty in locking the cap or fuel leaks can often be resolved through inspection and cleaning.

Safety Considerations

Handling and installing the Cummins 3942135 Filler Cap requires adherence to safety practices, including depressurizing the fuel system before removal and careful handling to avoid damage to sealing surfaces.

Environmental Impact

The design of the Cummins 3942135 Filler Cap contributes to environmental protection by reducing the risk of fuel spillage and contamination, thus maintaining clean and safe working conditions around commercial trucks.

Cummins Overview

Cummins Inc., a global power leader, designs and manufactures a wide range of power solutions, including the Cummins 3942135 Filler Cap. Known for its innovation and quality, Cummins ensures that its products, like this part, meet the demanding requirements of commercial truck operations.

Engines Compatible with Part 3942135

ISB CM550 Series

ISB CM550: Ensures an airtight fuel system, preventing leaks or contamination.

ISBE CM800 Series

ISBE CM800: Ensures efficient and safe operation of the fuel system.

ISC CM554 Series

ISC CM554: Maintains the integrity of the fuel system for heavy-duty applications.

ISL CM554 Series

ISL CM554: Essential for maintaining a sealed fuel system.

QSB5.9 44 CM550 Series

QSB5.9 44 CM550: Protects the fuel system, contributing to engine reliability.

QSC8.3 CM554 Series

QSC8.3 CM554: Ensures efficient engine operation.

QSL9 CM554 Series

QSL9 CM554: Maintains a sealed fuel system for engine reliability and efficiency.

Role of Part 3942135 Filler Cap in Engine Systems

Interaction with the Cover

The Filler Cap provides a secure seal that prevents fuel vapors from escaping, maintaining pressure within the fuel system.

Coordination with the Valve

It regulates the flow of fuel into the tank, preventing contaminants from entering and maintaining a seal to prevent spillage or leakage.

Integration with the Valve Cover

The Filler Cap ensures the valve cover remains protected from external elements, preventing corrosion or malfunction of internal components.

Conclusion

The Cummins 3942135 Filler Cap is a vital component in the fuel systems of commercial trucks, ensuring secure and efficient refueling, maintaining system integrity, and contributing to environmental protection. Its compatibility with various Cummins engine models underscores its importance in the operation and maintenance of these engines.

Hilgers, M., & Achenbach, W. (2021). Vocational Vehicles and Applications. Springer Vieweg.
↩
Mollenhauer, K., & Tschoeke, H. (2010). Handbook of Diesel Engines. Springer.
↩
Klyde, M., & VanGelder, K. (2010). Advanced Automotive Electricity and Electronics. Jones Bartlett Learning.
↩

RECOMMENDED PARTS

* 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.

3942135 Filler Cap Cummins®