203131
Heavy Hexagon Nut
Cummins®

Name: 203131 Cummins | Heavy Hexagon Nut
Brand: Cummins
SKU: 203131
Price: 5.49 USD
Availability: InStock
Rating: 5 (1 reviews)

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$5.49 $6.53

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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

This article provides an overview of the Cummins Heavy Hexagon Nut (Part #203131). It covers the basic concepts, purpose, key features, benefits, and maintenance suggestions related to this component. The information is intended for engineers, mechanics, truck drivers, and fleet operators.

Basic Concepts

A heavy hexagon nut is a type of fastener characterized by its hexagonal shape, which allows for efficient tightening and loosening using a wrench. These nuts are typically used in applications requiring high strength and durability ¹.

Purpose of the Cummins Heavy Hexagon Nut

The Cummins Heavy Hexagon Nut (Part #203131) is designed to secure various components in heavy-duty trucks. It plays a crucial role in ensuring that critical parts remain firmly attached under significant stress and vibration, contributing to the overall reliability and safety of the vehicle ².

Key Features

Hexagonal shape for easy wrench engagement.
Manufactured from high-strength materials to withstand heavy loads.
Designed for use in demanding environments typical of heavy-duty trucks.
Compatible with a variety of bolt sizes and thread pitches.

Benefits

Enhanced durability and resistance to loosening under vibration.
Reliable performance in high-stress applications.
Easy to install and remove using standard tools.
Contributes to the longevity and safety of truck components.

Troubleshooting and Maintenance

Regular inspection of heavy hexagon nuts is recommended to ensure they remain tight and undamaged. Signs of wear or loosening should be addressed promptly to prevent component failure. Proper torque specifications should be followed during installation to avoid over-tightening or under-tightening ³.

Cummins Engine Compatibility with Heavy Hexagon Nut Part 203131

The Cummins Heavy Hexagon Nut (Part #203131) is a versatile component designed to fit a variety of Cummins engines. This part is integral to the assembly and maintenance of these engines, ensuring secure fastening and stability.

Compatible Engines

4B3.9, 6B5.9, 6C8.3, B3.9 G, B4.5, B4.5 RGT, B5.9 CM2670 B166C, B5.9 G, B5.9 GAS PLUS CM556
B6.7 CM2350 B135B, B6.7 CM2670 B153B, B6.7 CM2670 B164C, B6.7 G CMOH6.0 B125, B6.7S
G5.9, G5.9 CM558, G8.3, G8.3 CM558, G855, G855 CM558, GTA8.3 CM558, GTA855 CM558 (CM2358) G101
ISB (Chrysler)

This part ensures the integrity of engine components, contributing to the overall reliability and performance of these engines.

Role of Part 203131 Heavy Hexagon Nut in Engine Systems

The Cummins Heavy Hexagon Nut (Part #203131) is integral to the assembly and securement of various components within engine systems. Its robust design ensures reliable fastening in high-stress environments.

Applications

Aftercooler: Secures critical connections, ensuring the efficient transfer of cooled air to the engine.
Brake Systems: Secures brake components, ensuring stability under varying operational conditions.
Camshaft and Rocker Assemblies: Fastens rocker levers and housings, ensuring precise operation of the valve train.
Connecting Rod and Piston: Secures components, ensuring the integrity of the engine’s power delivery system.
Cummins Engine Brake Kit and EBM-Lever: Secures engine brake components, ensuring correct function.
Cylinder Head and Exhaust Manifold: Secures these components, maintaining the engine’s structural integrity and efficient exhaust flow.
Fuel Connection and Performance Parts: Secures fuel lines and performance components, contributing to the engine’s overall reliability.
Turbocharger Arrangement: Secures turbocharger components, ensuring they operate within specified parameters.
Valve Crosshead: Secures valve components, ensuring correct function.

Conclusion

The Cummins Heavy Hexagon Nut (Part #203131) is a critical component for various Cummins engines, providing the necessary strength and reliability for fastening applications. Its use across a wide range of engine models underscores its versatility and importance in maintaining engine performance and longevity.

Parikyan Ed, T. (2022). Advances in Engine and Powertrain Research and Technology. Springer Nature.
↩
Hiereth, H., Prenninger, P., & Drexl, K. W. (2010). Charging the Internal Combustion Engine. Springer.
↩
Sully, F. K. (1998). Motor Vehicle Mechanics Textbook, Fifth Edition. Heinemann Professional Publishing.
↩

SPECIFICATIONS

Notes

3/8 - 24 UNF

Service Part Topic

96T2-6A

Hazardous Material

Non-Hazardous (NOI, ICE/Auto)

Package Dimensions

2.0 x 2.0 x 1.0 in

Weight

0.007 lb

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.

203131 Heavy Hexagon Nut Cummins®