3289941
V Ribbed Belt
Cummins®

The Cummins 3289941 V Ribbed Belt is a critical component for commercial trucks, designed to transmit power from the engine to various accessories, ensuring efficient operation and reliability ³.

Basic Concepts of V Ribbed Belts

V Ribbed Belts, characterized by their trapezoidal cross-section, fit into corresponding grooves on pulleys, enhancing grip and reducing slippage ². This design is ideal for high-torque applications, transferring rotational force from one pulley to another and driving multiple components simultaneously. They differ from flat belts and timing belts in construction and application, offering superior efficiency and durability in mechanical systems ¹.

Role of the 3289941 V Ribbed Belt in Truck Operation

This Cummins part is essential for driving key engine accessories such as the alternator, water pump, and air conditioning compressor. By ensuring these components receive the necessary power, the belt contributes to the truck’s operational efficiency and comfort ⁴.

Key Features

The 3289941 is constructed from high-quality materials, featuring reinforced edges and a specialized rubber compound to withstand the demands of commercial truck operation. These elements enhance its performance, durability, and reliability ³.

Benefits

Using the 3289941 offers improved efficiency in power transmission, reducing engine load. Its design minimizes maintenance requirements, leading to lower operational costs. The belt’s durability ensures long-term performance, making it a cost-effective choice for commercial trucks ³.

Troubleshooting and Maintenance

Common issues with V Ribbed Belts include wear, cracking, and slippage. Regular inspections for damage and proper tensioning are crucial. Maintenance practices such as periodic replacement and keeping the belt clean can enhance its longevity and performance. Following manufacturer guidelines prevents premature failure and ensures efficient operation ¹.

About Cummins

Cummins Inc. is a global leader in designing, manufacturing, and distributing engines, filtration, and power generation products. Their commitment to innovation and quality is evident in components like the 3289941, reinforcing their reputation in the market ⁴.

Compatibility with Cummins Engines

The 3289941 is designed to fit various Cummins engines, ensuring efficient power transmission and reliable operation. Here is its compatibility across different engine models:

ISB Series

• ISB CM2150
• ISB CM850

ISC Series

• ISC CM2150
• ISC CM850
• ISC8.3 CM2250

ISL Series

• ISL CM2150
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250

QSB Series

• QSB4.5 CM2250 EC
• QSB4.5 CM850(CM2850)
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850(CM2850)
• QSB7 CM2880 B117

QSC and QSL Series

• QSC8.3 CM850(CM2850)
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM850(CM2850)

This comprehensive compatibility ensures the 3289941 can be used across a wide range of Cummins engines, enhancing their operational efficiency and longevity ⁴.

Role of Part 3289941 V Ribbed Belt in Engine Systems

The 3289941 is integral to the efficient operation of several engine systems. Its primary function is to transfer rotational force from the crankshaft to various engine accessories, ensuring they operate in sync with the engine’s rhythm.

Front Drive Belt System

In the front drive belt system, the V Ribbed Belt drives multiple engine accessories simultaneously, including the alternator and air conditioning compressor. The belt’s ribbed design allows it to grip pulleys more effectively, reducing slippage and enhancing power transfer. This ensures each accessory receives the necessary rotational force to function correctly, maintaining the overall efficiency and performance of the engine ¹.

Water Pump Drive

The V Ribbed Belt also plays a significant role in the water pump drive system. By connecting the crankshaft to the water pump, it ensures that coolant is circulated through the engine block and cylinder head. This circulation is vital for dissipating heat generated during combustion, preventing overheating and potential engine damage. The belt’s durability and flexibility are essential in withstanding the constant motion and varying loads, ensuring consistent coolant flow and engine temperature regulation ².

Conclusion

The Cummins 3289941 V Ribbed Belt is a key element in maintaining the synchronization and efficiency of various engine components. From powering essential accessories to ensuring proper coolant circulation, this part plays a crucial role in the overall performance and reliability of commercial trucks ³⁴.