3289369
V Ribbed Belt
Cummins®

Introduction

The Cummins 3289369 V-Ribbed Belt is a crucial component in commercial trucks, facilitating the transfer of power from the engine to various accessories. Understanding its functionality is essential for maintaining the efficiency and reliability of truck engines.

Basic Concepts of V-Ribbed Belts

V-Ribbed Belts, characterized by their trapezoidal cross-section, are designed to run in specially crafted pulleys. These belts are widely used in automotive applications to drive multiple engine accessories simultaneously, such as alternators, water pumps, and air conditioning compressors. Their design enhances grip and efficiency by increasing the contact surface area with the pulleys ¹.

Purpose of the 3289369 V-Ribbed Belt

This Cummins part is integral to the operation of a truck’s engine, driving various accessories to ensure they receive the necessary power to function correctly. It plays a role in systems that contribute to engine cooling, electrical power generation, and other functions that support the overall performance of the vehicle.

Key Features

The 3289369 V-Ribbed Belt is constructed with high-quality materials and specific features to enhance performance and durability. Its robust core, reinforced with textile cords, provides strength and flexibility. The outer layer, made from a durable elastomer compound, resists wear, heat, and chemicals, ensuring long-lasting performance in demanding environments.

Benefits

Using this Cummins part offers several advantages. Its design contributes to improved efficiency in power transmission, reducing energy loss and enhancing engine performance. The belt’s durability and resistance to wear lead to increased reliability and longevity, minimizing the need for frequent replacements. Additionally, its compatibility with various engine accessories ensures versatile application across different truck models.

Installation

Proper installation of the 3289369 V-Ribbed Belt is crucial for its performance and longevity. The process involves ensuring the belt is correctly aligned with the pulleys and tensioned to the manufacturer’s specifications. Tools required may include a belt tension gauge and wrenches for adjusting tensioners. Following the manufacturer’s guidelines for installation ensures the belt operates efficiently and reduces the risk of premature wear or failure.

Maintenance

Regular maintenance is key to ensuring the longevity and optimal performance of the 3289369 V-Ribbed Belt. This includes periodic inspections for signs of wear, such as cracks, fraying, or glazing on the belt’s surface. Maintenance practices should also involve checking the belt’s tension and alignment, as improper tension can lead to inefficient operation and accelerated wear. Replacement guidelines suggest inspecting the belt at regular intervals and replacing it when signs of significant wear are observed.

Troubleshooting

Common issues with V-Ribbed Belts include slippage, noise, and visible wear. Symptoms of a failing belt may include squealing noises from the engine bay, reduced performance of driven accessories, or visible damage to the belt. Diagnosing these issues involves inspecting the belt for wear, checking the alignment and tension of the belt, and ensuring that pulleys and tensioners are in good condition. Corrective actions may include adjusting the belt tension, replacing worn pulleys, or installing a new belt.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a reputation for producing high-quality engine components and accessories that meet the demanding requirements of commercial and industrial applications. The company’s commitment to excellence is reflected in its wide range of products, including the Cummins 3289369 V-Ribbed Belt, designed to enhance the performance and reliability of commercial trucks.

V-Ribbed Belt 3289369 Compatibility with Cummins Engines

The V-Ribbed Belt part number 3289369, manufactured by Cummins, is designed to fit a variety of Cummins engines. This belt is crucial for the proper functioning of engine accessories such as the alternator, water pump, and air conditioning compressor. Below is a detailed description of the engines with which this belt is compatible.

6 Series Engines

• 6B5.9
• 6C8.3
• B4.5

C Series Engines

• C GAS PLUS CM556
• C8.3 G

ISB Series Engines

• ISB CM550
• ISB6.7 CM2250
• ISB6.7 CM2350 B101

ISC Series Engines

• ISC CM850
• ISC8.3 CM2250

ISL Series Engines

• ISL9 CM2150 SN
• ISL9 CM2250

QSB Series Engines

• QSB3.9 30 CM550
• QSB4.5 CM850 (CM2850)
• QSB5.9 30 CM550
• QSB5.9 44 CM550
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

QSC Series Engines

• QSC8.3 CM850 (CM2850)

QSL Series Engines

• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM850 (CM2850)

This belt is engineered to provide reliable performance and durability, ensuring that the engine accessories operate smoothly and efficiently. It is essential to verify the correct fitment of this belt with the specific engine model to ensure optimal performance and longevity.

Role of Part 3289369 V-Ribbed Belt in Engine Systems

The V-Ribbed Belt, identified as part 3289369, is integral to the efficient operation of several key engine components. Its primary function is to transfer rotational force from the engine’s crankshaft to various auxiliary components, ensuring they operate in sync with the engine’s rhythm.

Alternator Drive

In the alternator drive system, the V-Ribbed Belt is responsible for transmitting power from the engine to the alternator. This transfer of power enables the alternator to generate electricity, which is essential for charging the battery and powering the vehicle’s electrical systems while the engine is running.

Water Pump Drive

The water pump drive system relies on the V-Ribbed Belt to convey rotational energy from the engine to the water pump. This energy transfer facilitates the circulation of coolant through the engine, maintaining optimal operating temperatures and preventing overheating. The consistent flow of coolant is vital for the engine’s longevity and performance.

Water Pump Drive Pulley

The V-Ribbed Belt also interfaces with the water pump drive pulley, which is a critical component in the water pump drive system. The belt’s engagement with the pulley ensures that the water pump rotates at the correct speed, allowing for efficient coolant circulation. This interaction is fundamental to the thermal management of the engine, contributing to its overall reliability and efficiency.

Conclusion

The Cummins 3289369 V-Ribbed Belt plays a vital role in the operation of commercial truck engines by ensuring the efficient transfer of power to essential accessories. Its design, durability, and compatibility with various Cummins engines make it a reliable component for maintaining engine performance and reliability. Regular maintenance and proper installation are crucial for maximizing the lifespan and efficiency of this part.