3289448
V Ribbed Belt
Cummins®

Introduction

The Cummins 3289448 V Ribbed Belt is a component designed for use in commercial trucks. It plays a role in the operation of these vehicles by facilitating the transfer of power from the engine to various accessories. Understanding its purpose and significance is key to maintaining the efficiency and reliability of truck operations.

Basic Concepts of V Ribbed Belts

V Ribbed Belts are engineered with a trapezoidal cross-section, which allows them to fit snugly into corresponding pulleys. This design enhances grip and reduces slippage, ensuring efficient power transmission in mechanical systems ¹. The belts are constructed from durable materials that can withstand the rigors of continuous operation, and their ribbed profile is tailored to match the contours of the pulleys they engage with.

Purpose and Role in Truck Operation

In commercial trucks, the Cummins 3289448 V Ribbed Belt is responsible for driving essential accessories such as alternators, water pumps, and air conditioning compressors. By connecting these components to the engine’s crankshaft, the belt ensures that they receive the necessary power to function correctly. This role is fundamental to the truck’s operation, as it supports systems that are critical for engine performance, cooling, and comfort ².

Key Features

The Cummins 3289448 V Ribbed Belt boasts several key features that contribute to its performance and durability. It is made from high-quality materials that offer resistance to wear and environmental factors. The belt’s rib profile is designed to maximize contact with the pulleys, enhancing power transmission. Additionally, its length is tailored to fit specific applications, ensuring a precise fit and optimal operation within the truck’s drivetrain system.

Benefits

Utilizing the Cummins 3289448 V Ribbed Belt offers several advantages. Its design contributes to improved efficiency in power transmission, which can lead to better overall performance of the truck. The belt’s durability ensures a longer service life, reducing the frequency of replacements and maintenance costs. Moreover, its reliability is a significant factor in maintaining the truck’s operational uptime ³.

Installation Considerations

When installing the Cummins 3289448 V Ribbed Belt, it is important to follow guidelines to ensure proper function. This includes achieving the correct tension to prevent slippage while avoiding over-tightening, which can lead to premature wear. Alignment with the pulleys is also critical to ensure smooth operation and to prevent undue stress on the belt and the components it drives. Compatibility with other components in the truck’s drivetrain system must be confirmed to ensure a seamless integration.

Maintenance and Troubleshooting

To maintain the Cummins 3289448 V Ribbed Belt and ensure its longevity, regular inspections for signs of wear, cracking, or contamination are recommended. Proper tension should be maintained, and any misalignments should be corrected promptly. Common issues such as belt slippage can often be addressed by adjusting tension or alignment. In cases of significant wear or damage, replacement may be necessary to prevent further complications.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and a broad range of product offerings, Cummins has established a strong reputation in the automotive industry for quality and reliability. The company’s commitment to excellence is reflected in its parts, including the Cummins 3289448 V Ribbed Belt, which is designed to meet the demanding requirements of commercial truck applications ⁴.

Compatibility with Cummins Engines

The V Ribbed Belt part number 3289448, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines, ensuring efficient power transmission and optimal engine performance. Here is a detailed look at the compatibility of this belt with specific Cummins engines:

B6.7 Series Engines

• B6.7 CM2670
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)

ISB Series Engines

• ISB CM2150
• ISB CM850
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISC Series Engines

• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250

ISL Series Engines

• ISL CM2150
• ISL CM554
• ISL9 CM2150 SN
• ISL9 CM2250

QSB Series Engines

• 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 Engines

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

Role of Part 3289448 V Ribbed Belt in Engine Systems

The V Ribbed Belt, identified by part number 3289448, is integral to the efficient operation of several engine components. It serves as the front drive belt, transferring rotational force from the engine’s crankshaft to various auxiliary components.

Front Drive Belt Functionality

As the front drive belt, the V Ribbed Belt ensures the continuous operation of multiple engine accessories. It wraps around the crankshaft pulley and extends to other pulleys, maintaining a synchronized rotation. This setup is essential for the proper functioning of components such as the alternator, power steering pump, and air conditioning compressor.

Water Pump Drive

A significant application of the V Ribbed Belt is in the water pump drive system. The belt connects to the water pump drive pulley, which is attached to the water pump. This connection allows the belt to drive the water pump, ensuring a consistent flow of coolant through the engine. The coolant circulation is vital for maintaining optimal engine temperature, preventing overheating, and ensuring the longevity of engine components.

Water Pump Drive Pulley

The water pump drive pulley is a critical interface in this system. It is designed to match the contour and dimensions of the V Ribbed Belt, allowing for efficient power transmission. The pulley’s precise engineering ensures minimal slippage and maximum efficiency in driving the water pump.

Conclusion

In summary, the V Ribbed Belt (part 3289448) plays a pivotal role in the engine’s auxiliary systems, particularly in driving the water pump and ensuring the engine maintains a stable operating temperature. Its reliable performance is essential for the overall efficiency and durability of the engine.