4931871
V Belt
Cummins®

The Cummins 4931871 V-Belt is a component designed for use in commercial trucks. It serves to transmit power from the engine to various auxiliary components, ensuring the efficient operation of the vehicle. This V-belt is significant in maintaining the functionality of critical systems within the truck, contributing to overall performance and reliability ¹.

Basic Concepts of V-Belts

V-belts are a type of belt drive characterized by their trapezoidal cross-section, which allows them to fit snugly into matching grooves on pulleys. This design enhances grip and reduces slippage, making V-belts suitable for high-torque applications. Unlike flat belts, which rely on friction alone, V-belts utilize both friction and the wedging action within the grooves to transmit power more effectively. This makes them ideal for applications requiring robust power transmission, such as those found in commercial trucks ².

Role of the 4931871 V-Belt in Truck Operation

This Cummins part plays a role in the operation of a commercial truck by driving essential components such as the alternator, water pump, and air conditioning compressor. Its function is to transfer power from the engine to these components, ensuring they operate efficiently. This belt is integral to the powertrain system, as it enables the truck to generate electricity, maintain engine cooling, and provide climate control, all of which are vital for the truck’s operation ³.

Key Features of the 4931871 V-Belt

The Cummins 4931871 V-Belt is constructed from high-quality materials that enhance its durability and performance. Its design includes features such as a robust core and a durable outer layer, which contribute to its longevity. The belt is engineered to withstand the rigors of commercial truck operation, providing reliable power transmission under various conditions ⁴.

Benefits of Using the 4931871 V-Belt

Utilizing this Cummins part offers several benefits, including improved efficiency and reliability. The belt’s design allows for optimal power transmission, reducing the load on the engine and enhancing fuel economy. Additionally, its durability reduces the frequency of replacements, leading to potential cost savings for fleet operators ⁵.

Installation and Compatibility

Proper installation of the Cummins 4931871 V-Belt is crucial for ensuring its performance and longevity. Installation guidelines should be followed to avoid issues such as misalignment or excessive tension, which can lead to premature wear. The belt is designed to be compatible with a range of truck models and engine types, ensuring versatility in its application .

Maintenance and Troubleshooting

Regular maintenance of the Cummins 4931871 V-Belt is important for ensuring its longevity and performance. This includes checking for signs of wear, ensuring proper tension, and replacing the belt when necessary. Common issues that may arise include slippage or cracking, which can often be addressed through proper maintenance practices .

Performance and Efficiency

This Cummins part contributes to the overall performance and efficiency of the truck by ensuring reliable power transmission to critical components. Its efficient design helps to minimize energy loss, which can have a positive impact on fuel economy and operational costs .

Safety Considerations

When working with V-belts, it is important to follow safety procedures to prevent accidents. This includes proper handling, installation, and maintenance practices. Ensuring that the belt is correctly installed and maintained can help to prevent issues such as belt failure, which could lead to unsafe operating conditions .

Environmental Impact

The use of the Cummins 4931871 V-Belt can have a positive environmental impact due to its efficient power transmission capabilities. By reducing energy loss and enhancing fuel economy, the belt contributes to lower emissions and a reduced environmental footprint compared to less efficient belt types .

Cummins Corporation

Cummins Corporation is a renowned manufacturer in the automotive and commercial truck industry, known for its commitment to quality and innovation. The company has a long history of producing reliable and high-performance components, including the Cummins 4931871 V-Belt. Cummins’ dedication to excellence in manufacturing ensures that their products meet the demanding requirements of commercial truck applications.

V-Belt Part 4931871 in Cummins Engines

The V-Belt part number 4931871, manufactured by Cummins, is a critical component in several engine configurations. This belt is designed to transfer power efficiently between various engine accessories, ensuring optimal performance and reliability.

Application in Specific Engines

• 6B5.9 Engine Series

  In the 6B5.9 engine series, the V-Belt part 4931871 is integral to the engine’s accessory drive system. It connects the crankshaft pulley to the alternator, air conditioning compressor, and water pump, among other components. This belt ensures that these accessories receive the necessary power to function correctly, maintaining the engine’s overall efficiency and performance.

• Grouped Engine Models

  The V-Belt part 4931871 is also compatible with other Cummins engine models within the same performance and design parameters as the 6B5.9 series. These engines often share similar accessory drive layouts, making the V-Belt a versatile and essential part across multiple engine types.

  For instance, engines in the same series might include variations such as the 6B5.9-C150, 6B5.9-C180, and others, where the V-Belt part 4931871 plays a crucial role in maintaining the accessory drive system’s integrity.

  The V-Belt’s design ensures it can handle the specific torque and rotational speeds required by these engines, providing a reliable connection that minimizes wear and tear over time.

Role of Part 4931871 V-Belt in Engine Systems

The part 4931871 V-Belt is an essential component in the efficient operation of various engine systems, particularly those involving the compressor and refrigerant cycles.

In systems where a compressor is utilized, the V-Belt transmits power from the engine to the compressor pulley. This transfer of power enables the compressor to function, compressing the refrigerant gas. The efficient transfer of power is vital for maintaining the desired pressure levels within the refrigerant cycle, ensuring optimal performance of the cooling system.

The refrigerant cycle relies on the compressor to increase the pressure and temperature of the refrigerant gas. The V-Belt ensures that the compressor operates smoothly and consistently, which is necessary for the effective evaporation and condensation processes within the cycle.

Moreover, the V-Belt’s role extends to supporting the overall stability and reliability of the engine system. By providing a consistent power transmission, it helps in reducing wear and tear on other components, contributing to the longevity and efficiency of the entire system.

Conclusion

In summary, the part 4931871 V-Belt plays a significant part in the seamless operation of engine systems involving compressors and refrigerant cycles, ensuring that these systems perform efficiently and reliably. Its robust design, compatibility with various engine models, and contribution to overall vehicle performance make it a critical component in commercial truck applications.