3289648
V Ribbed Belt
Cummins®

Introduction

The Cummins 3289648 V-Ribbed Belt is a component designed for use in commercial trucks. It facilitates the transfer of power from the engine to various accessories, playing a significant role in the operation of these vehicles. Understanding its function and importance can help maintain the efficiency and reliability of truck operations.

Basic Concepts of V-Ribbed Belts

V-Ribbed Belts are characterized by their trapezoidal cross-section, which allows them to fit into corresponding grooves on pulleys. This design enhances grip and reduces slippage compared to flat belts ¹. They are commonly used in automotive systems to drive multiple accessories such as alternators, water pumps, and air conditioning compressors. V-Ribbed Belts differ from timing belts, which synchronize the rotation of the engine’s crankshaft and camshaft, and from serpentine belts, which typically drive fewer accessories with a single, continuous loop.

Purpose of the 3289648 V-Ribbed Belt

The 3289648 V-Ribbed Belt drives various engine accessories, ensuring they receive the necessary power to function correctly. This includes accessories like the alternator for charging the battery, the water pump for cooling the engine, and the air conditioning compressor for climate control. The efficient transfer of power by this belt is vital for the overall performance and reliability of the truck.

Key Features

The 3289648 V-Ribbed Belt features a robust design with multiple ribs to enhance power transmission and reduce the risk of slippage. It is constructed from high-quality materials that provide durability and resistance to wear. The belt’s elasticity and tension maintenance capabilities contribute to its performance and longevity in demanding truck applications.

Benefits

Using the 3289648 V-Ribbed Belt offers several advantages. It provides improved efficiency in power transmission, ensuring that engine accessories operate smoothly and reliably. The belt’s design and materials contribute to its longevity, reducing the frequency of replacements. Additionally, its reliability helps maintain the overall performance of the truck, minimizing downtime and operational interruptions.

Installation Process

Installing the 3289648 V-Ribbed Belt requires careful attention to ensure proper fitting. The process involves loosening the tensioner pulley to create slack in the old belt, removing the old belt, and then routing the new belt around the designated pulleys. Tools such as a belt tensioner tool may be required to properly tension the new belt. Following the manufacturer’s guidelines for tension and alignment is crucial to ensure optimal performance and longevity of the belt.

Maintenance Tips

To ensure the optimal performance and longevity of the 3289648 V-Ribbed Belt, regular maintenance is recommended. This includes inspecting the belt for signs of wear, such as cracks, fraying, or glazing, at regular intervals. Keeping the belt clean and free from contaminants can also help maintain its condition. Additionally, ensuring that the belt is properly tensioned can prevent issues such as slippage or premature wear.

Troubleshooting Common Issues

Common problems associated with V-Ribbed Belts include slippage, cracking, and noise. Slippage can often be addressed by adjusting the tension of the belt. Cracking may indicate that the belt has reached the end of its service life and needs to be replaced. Noise, such as squealing, can sometimes be resolved by cleaning the belt and pulleys or by applying a belt dressing. Identifying the root cause of these issues and addressing them promptly can help maintain the efficiency and reliability of the truck.

Manufacturer - Cummins

Cummins is a well-established manufacturer with a strong reputation in the automotive and heavy-duty truck industries. The company is known for its commitment to quality and innovation in automotive components. Cummins’ history of producing reliable and high-performance parts contributes to its standing as a trusted provider in the industry ².

V-Ribbed Belt 3289648 Compatibility with Cummins Engines

The V-Ribbed Belt part number 3289648, 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 engine compatibility for this specific V-Ribbed Belt.

Compatible Engines

• 6B5.9
• 6C8.3
• B4.5
• ISB CM550
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISBE CM2150
• ISBE CM800
• ISBE4 CM850
• ISC CM554
• ISL CM554
• L8.9
• L8.9 CM2670 L134C
• L9.3 L105
• QSB3.9 30 CM550
• QSB5.9 30 CM550
• QSC8.3 CM2880 C102
• QSC8.3 CM554
• QSC8.3 CM850 (CM2850)
• QSL8.9 CM2150 L141
• QSL9 CM554
• QSL9 CM850 (CM2850)

Grouping of Compatible Engines

The V-Ribbed Belt 3289648 is versatile and fits into several categories of Cummins engines, including:

• ISB Series: ISB CM550, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN
• ISBE Series: ISBE CM2150, ISBE CM800, ISBE4 CM850
• ISC and ISL Series: ISC CM554, ISL CM554
• QSB Series: QSB3.9 30 CM550, QSB5.9 30 CM550
• QSC Series: QSC8.3 CM2880 C102, QSC8.3 CM554, QSC8.3 CM850 (CM2850)
• QSL Series: QSL8.9 CM2150 L141, QSL9 CM554, QSL9 CM850 (CM2850)
• Other Models: 6B5.9, 6C8.3, B4.5, L8.9, L8.9 CM2670 L134C, L9.3 L105

This belt is engineered to ensure optimal performance and longevity, providing reliable power transmission to the engine’s ancillary components.

Role of Part 3289648 V-Ribbed Belt in Engine Systems

The part 3289648 V-Ribbed Belt is an essential component in the efficient operation of various engine systems. It is primarily responsible for transmitting power from the engine’s crankshaft to multiple auxiliary components, ensuring they function correctly.

Front Drive Belt System

In the front drive belt system, the V-Ribbed Belt plays a significant role. It connects the crankshaft to the front-mounted accessories, which may include the alternator, power steering pump, and air conditioning compressor. This belt ensures that these components receive the necessary power to operate, thereby maintaining the vehicle’s electrical system, steering assistance, and climate control.

Water Pump Drive

The V-Ribbed Belt is also integral to the water pump drive mechanism. By connecting the crankshaft to the water pump, it ensures that coolant is circulated through the engine. This circulation is vital for dissipating heat generated during combustion, thus preventing the engine from overheating. The consistent movement of the belt drives the water pump, which in turn moves coolant through the engine block and radiator.

Water Pump Drive Pulley

The interaction between the V-Ribbed Belt and the water pump drive pulley is another key aspect of its function. The pulley is designed to optimize the belt’s grip and reduce slippage, ensuring efficient power transmission. As the crankshaft rotates, the V-Ribbed Belt engages with the pulley, causing the water pump to rotate and circulate coolant. This setup is engineered to handle the varying loads and speeds encountered during normal vehicle operation, providing reliable performance under diverse conditions ³.

Conclusion

The Cummins 3289648 V-Ribbed Belt is a critical component in the operation of commercial trucks, ensuring the efficient transfer of power to various engine accessories. Its robust design, high-quality materials, and compatibility with a wide range of Cummins engines make it a reliable choice for maintaining the performance and reliability of truck operations. Regular maintenance and proper installation are essential to maximize the belt’s longevity and effectiveness.