3914600
Belt Guard
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$2,899.95 $3,450.94

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 3914600 Belt Guard is a component designed to protect the belt and other components within the engine system of commercial trucks. Belt guards play a role in maintaining the integrity and efficiency of the engine by shielding the belt from external factors that could cause damage or wear. This protection is important for the consistent operation of the truck, ensuring that the belt functions correctly and the engine operates smoothly.

Basic Concepts of Belt Guards

A belt guard is a protective enclosure that surrounds the belt in an engine system. Its primary functions include safeguarding the belt from debris, reducing the risk of belt slippage, and minimizing noise. Belt guards operate by creating a barrier around the belt, which helps to contain any fragments that may break off and prevents foreign objects from coming into contact with the belt. Commonly, belt guards are manufactured using materials such as plastic, metal, or a combination of both, chosen for their durability, resistance to wear, and ability to withstand high temperatures 1.

Purpose of the Cummins 3914600 Belt Guard

The Cummins 3914600 Belt Guard is specifically designed to protect the belt and associated components in a truck’s engine system. By enclosing the belt, it prevents debris and contaminants from causing wear or damage. This protection helps maintain the belt’s efficiency and longevity, ensuring that the engine components driven by the belt, such as the alternator and water pump, operate without interruption.

Key Features

The Cummins 3914600 Belt Guard features a design that maximizes protection while allowing for easy installation and maintenance. It is composed of materials that offer durability and resistance to the harsh conditions within an engine compartment. Unique attributes of this belt guard include its precise fit, which ensures it effectively covers the belt without interfering with other engine components, and its robust construction, which contributes to its performance and longevity.

Benefits of Using the Cummins 3914600 Belt Guard

Installing the Cummins 3914600 Belt Guard offers several advantages. It contributes to improved engine performance by ensuring the belt operates efficiently and without damage. This protection can lead to reduced maintenance costs, as the belt and associated components are less likely to require replacement due to wear or damage. Additionally, the belt guard enhances the longevity of the belt and components, contributing to the overall reliability of the truck’s engine system 2.

Installation Process

Proper installation of the Cummins 3914600 Belt Guard involves several steps to ensure it is securely fitted and functions as intended. The process includes preparing the engine compartment, aligning the belt guard with the belt, and securing it in place using the provided fasteners. Tools required for installation may include a socket set for tightening fasteners and a wrench for adjusting the belt tension, if necessary.

Troubleshooting Common Issues

Common problems associated with belt guards, including the Cummins 3914600, may involve misalignment, damage to the guard, or issues with belt tension. Troubleshooting these issues effectively requires inspecting the belt guard for signs of wear or damage, ensuring it is correctly aligned with the belt, and adjusting the belt tension as needed to prevent slippage or excessive wear.

Maintenance Tips

Regular maintenance of the Cummins 3914600 Belt Guard is key to ensuring its longevity and effectiveness. Maintenance practices should include periodic inspections for signs of wear, damage, or misalignment. An inspection checklist may involve checking the condition of the belt guard, ensuring it is securely fastened, and verifying that the belt is correctly aligned and tensioned. Adhering to a maintenance schedule that includes these checks can help prevent issues and ensure the belt guard continues to provide effective protection.

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 a commitment to quality, Cummins has established a reputation for producing reliable and efficient components for the commercial truck industry. The company’s product range includes a variety of engine components and systems designed to enhance the performance and reliability of commercial vehicles 3.

Belt Guard 3914600 Compatibility with Cummins Engines

The Belt Guard part number 3914600, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This part is important for protecting the engine’s belts from debris and ensuring optimal performance and longevity of the belt system.

4B3.9 Engine

For the 4B3.9 engine, the Belt Guard 3914600 is engineered to fit perfectly, providing protection for the engine’s belt system. This ensures that the belts remain free from contaminants, which can lead to wear and tear, ultimately extending the life of the engine components.

6B5.9 Engine

Similarly, the Belt Guard 3914600 is also compatible with the 6B5.9 engine. Its design ensures that it fits snugly around the belt system, safeguarding it from potential damage caused by debris and other foreign objects. This compatibility is vital for maintaining the efficiency and reliability of the engine.

Grouping of Engines

Both the 4B3.9 and 6B5.9 engines benefit from the use of the Belt Guard 3914600, as it provides a consistent level of protection across different engine models. This part’s universal fitment across these engines highlights its versatility and importance in maintaining the integrity of the belt system in Cummins engines.

Role of Part 3914600 Belt Guard in Engine Systems

The part 3914600 Belt Guard is a component in safeguarding the belt system within various engine setups. It is designed to encase and protect the belt, which is a fundamental element in transmitting power from the engine to other mechanical components such as the alternator, water pump, and air conditioning compressor.

In the context of the package, the Belt Guard ensures that the belt remains in optimal condition by shielding it from external contaminants and physical damage. This protection is important for maintaining the efficiency and longevity of the belt, as well as the components it drives. The guard also helps in reducing noise and vibration that can be generated by the belt, contributing to a smoother operation of the engine system.

When considering the guard aspect, the Belt Guard acts as a barrier against debris, fluids, and other potential hazards that could cause premature wear or failure of the belt. This is particularly important in environments where the engine is exposed to harsh conditions, such as in industrial applications or off-road vehicles. The guard also plays a role in containing any belt fragments in the unlikely event of a belt failure, thereby preventing secondary damage to surrounding components.

Overall, the integration of the Belt Guard within engine systems enhances the reliability and performance of the belt-driven components, ensuring that the engine operates efficiently and with minimal maintenance requirements.

Conclusion

The Cummins 3914600 Belt Guard is a vital component for protecting the belt and associated components in commercial truck engine systems. Its design and features contribute to improved engine performance, reduced maintenance costs, and enhanced reliability. Proper installation, regular maintenance, and understanding its role in engine systems are key to maximizing the benefits of this Cummins part.


  1. Minaker, Bruce P. Fundamentals of Vehicle Dynamics and Modelling. John Wiley Sons, 2019.

  2. Bennett, Sean, and Ian Andrew Norman. Heavy Duty Truck Systems, Fifth Edition. Delmar Cengage Learning, 2011.

  3. Singh, D. K. Dictionary of Mechanical Engineering. Springer Nature, 2024.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
27.75 x 23.88 x 9.25 in
Weight
12 lb
* 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.