3289426
V Ribbed Belt
Cummins®

The Cummins 3289426 V Ribbed Belt is a critical component in commercial trucks, facilitating the transfer of power from the engine to various auxiliary components. Understanding its purpose and functionality is essential for maintaining the efficiency and reliability of truck operations.

Basic Concepts of V Ribbed Belts

V Ribbed Belts, characterized by their trapezoidal cross-section, run in matching grooves on pulleys, enhancing grip and reducing slippage compared to flat belts ¹. In automotive systems, these belts drive multiple components such as the alternator, water pump, and air conditioning compressor, ensuring efficient operation.

Purpose of the Cummins 3289426 V Ribbed Belt

This Cummins part plays a role in the operation of a truck by driving essential components within the engine system. It transfers power from the engine to components such as the alternator, water pump, and other auxiliary components, contributing to the overall performance and reliability of the truck ².

Key Features

The 3289426 V Ribbed Belt is constructed from high-quality materials designed to withstand the demanding conditions of commercial truck operations. Its design includes multiple ribs that enhance grip and reduce the likelihood of slippage. Additionally, the belt is engineered with durability in mind, featuring resistance to wear, heat, and chemicals commonly encountered in truck environments ³.

Benefits

This part offers several benefits that contribute to the efficiency, durability, and reliability of truck operations. Its design allows for efficient power transfer with minimal slippage, ensuring that driven components operate effectively. The belt’s durability and resistance to wear contribute to its longevity, reducing the frequency of replacements and maintenance costs. Furthermore, its reliable performance helps maintain the overall efficiency and reliability of the truck’s engine system.

Installation Process

Installing the 3289426 V Ribbed Belt requires careful attention to detail to ensure proper fit and function. The process involves removing the old belt, inspecting the routing path for any obstructions or damage, and carefully placing the new belt around the designated pulleys. Tools such as belt tensioners and wrenches may be necessary to achieve the correct tension. It is important to follow the manufacturer’s guidelines for tensioning to ensure optimal performance and longevity of the belt.

Troubleshooting Common Issues

Common issues associated with V Ribbed Belts include slippage, wear, and noise. Slippage can occur if the belt is not properly tensioned or if it has become glazed due to excessive heat. Wear may be indicated by cracks or fraying on the belt’s surface, while noise can signal misalignment or excessive tension. Troubleshooting these issues involves inspecting the belt and pulleys for signs of damage, ensuring proper tension, and aligning components as necessary.

Maintenance Tips

Regular maintenance is key to ensuring the longevity and optimal performance of the 3289426 V Ribbed Belt. This includes periodic inspections for signs of wear or damage, ensuring proper tension, and cleaning the belt and pulleys to remove any buildup that could affect performance. Additionally, following the manufacturer’s recommendations for replacement intervals can help prevent unexpected failures and maintain the efficiency of the truck’s engine system.

Signs of Wear and Replacement Guidelines

Signs that the 3289426 V Ribbed Belt may need replacement include visible cracks, fraying, or glazing on the belt’s surface, as well as unusual noise or slippage during operation. Replacement should be considered when these signs are observed, or according to the manufacturer’s recommended service intervals, to ensure continued reliable operation of the truck’s engine system.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. Its product range includes a variety of components and systems designed to enhance the performance, efficiency, and reliability of commercial vehicles.

V Ribbed Belt 3289426 Compatibility with Cummins Engines

The V Ribbed Belt part number 3289426, manufactured by Cummins, is designed to fit a variety of Cummins engines. This belt is integral for the proper functioning of the engine’s ancillary systems, ensuring that components such as the alternator, water pump, and air conditioning compressor operate efficiently.

Compatible Engines

• 6C8.3
• C GAS PLUS CM556
• D4.0 CM2620 D103B
• F3.8 CM2350 F120B
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISBE4 CM850
• ISC CM2150
• ISC CM850
• ISC8.3 CM2250
• ISF3.8 CM2220 AN
• ISF3.8 CM2220 F103
• ISL CM2150
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9.5 CM2880 L138
• L8.9
• L8.9 CM2670 L134C
• L8.9G CMOH2.0 L125B
• QSB4.5 CM2250 EC
• QSB4.5 CM850(CM2850)
• QSB6.7 CM850(CM2850)

Grouping of Compatible Engines

• F Series Engines

  • F3.8 CM2350 F120B
  • F3.8 CM2620 F137B
  • F4.5 CM2620 F139B

• ISB/ISD Series Engines

  • ISB CM850
  • ISB/ISD4.5 CM2150 B119
  • ISBE4 CM850

• ISC Series Engines

  • ISC CM2150
  • ISC CM850
  • ISC8.3 CM2250

• ISF Series Engines

  • ISF3.8 CM2220 AN
  • ISF3.8 CM2220 F103

• ISL Series Engines

  • ISL CM2150
  • ISL G CM2180
  • ISL9 CM2150 SN
  • ISL9 CM2250
  • ISL9.5 CM2880 L138

• L Series Engines

  • L8.9
  • L8.9 CM2670 L134C
  • L8.9G CMOH2.0 L125B

• QSB Series Engines

  • QSB4.5 CM2250 EC
  • QSB4.5 CM850(CM2850)
  • QSB6.7 CM850(CM2850)

This comprehensive compatibility ensures that the V Ribbed Belt 3289426 can be used across a wide range of Cummins engines, providing a reliable and efficient solution for maintaining the engine’s ancillary systems.

Role of Part 3289426 V Ribbed Belt in Engine Systems

The V Ribbed Belt, identified as part 3289426, is integral to the efficient operation of several key engine components. Its primary function is to transfer rotational power from the engine’s crankshaft to various auxiliary systems, ensuring they operate in sync with the engine’s performance.

Front Drive Belt System

In the front drive belt system, the V Ribbed Belt is responsible for driving multiple engine accessories. It wraps around the crankshaft pulley and extends to other pulleys connected to essential components. This setup allows for the simultaneous operation of these accessories, maintaining a balanced and efficient engine performance.

Refrigerant Compressor

The V Ribbed Belt plays a significant role in the operation of the refrigerant compressor. By connecting the compressor to the crankshaft, the belt ensures that the compressor receives the necessary rotational force to function. This is vital for the air conditioning system, as it relies on the compressor to circulate refrigerant and cool the cabin effectively.

Water Pump Drive

Another important application of the V Ribbed Belt is in the water pump drive system. The belt drives the water pump, which is responsible for circulating coolant through the engine. This circulation helps in dissipating heat, preventing the engine from overheating. The consistent and reliable operation of the water pump is essential for maintaining optimal engine temperature and performance.

Conclusion

In summary, the V Ribbed Belt (part 3289426) is a fundamental component that ensures the proper functioning of the front drive belt system, refrigerant compressor, and water pump drive, contributing to the overall efficiency and reliability of the engine.