4955359
Water Pump Kit
Cummins®

The Cummins 4955359 Water Pump Kit is a component designed for use in commercial trucks. It serves a significant role in the operation of these vehicles by ensuring the engine remains at optimal operating temperatures. This part is integral to the broader engine cooling system, which is vital for the efficient and reliable performance of the truck ¹.

Basic Concepts of Water Pump Kits

A water pump kit typically includes a water pump, gaskets, and other necessary components. Its primary function within an engine cooling system is to circulate coolant through the engine. This circulation helps in dissipating heat generated during engine operation, thereby maintaining engine temperature within specified limits. The water pump achieves this by using an impeller driven by the engine, which moves the coolant through the system ².

Purpose of the Cummins 4955359 Water Pump Kit

This Cummins part plays a role in the operation of a truck by circulating coolant through the engine. This circulation is essential for maintaining optimal operating temperatures, which in turn ensures the engine operates efficiently and reliably. By keeping the engine cool, the water pump kit helps prevent overheating, which can lead to engine damage ³.

Key Features

The 4955359 is characterized by its robust design and the quality of materials used in its construction. These features contribute to its performance and durability. The kit is engineered to withstand the demanding conditions typical of commercial truck operations, ensuring long-term reliability.

Benefits of Using the Cummins 4955359 Water Pump Kit

Installing this part offers several advantages. It contributes to improved engine efficiency by ensuring the engine operates within optimal temperature ranges. This can lead to better fuel economy and reduced emissions. Additionally, the kit’s durability and reliability help extend the engine’s lifespan, offering long-term value to truck operators.

Installation Process

Installing the 4955359 involves several steps. Preparation is key, starting with ensuring the engine is cool and the cooling system is drained. The old water pump is removed, and the new pump is installed with the provided gaskets. Tools required may include wrenches and a pump puller. After installation, it’s important to refill the cooling system and check for leaks.

Maintenance Tips

To ensure the long-term performance of the 4955359, regular maintenance is recommended. This includes inspecting the water pump and its connections for signs of wear or leaks at specified intervals. Keeping the cooling system clean and properly filled with coolant also contributes to the kit’s longevity.

Troubleshooting Common Issues

Common issues with water pump kits may include leaks or impeller failure. If a leak is detected, it’s important to identify the source and address it promptly to prevent coolant loss. Impeller failure may require the water pump to be replaced. Regular inspections can help identify potential issues before they lead to significant problems.

Manufacturer Overview - Cummins

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its wide range of diesel engines and related components. The company has a history of innovation and quality, which is reflected in its product offerings, including the 4955359. Cummins’ reputation for reliability and performance makes its products a popular choice among commercial truck operators.

Components of Cummins Water Pump Kit 4955359

Water Pump

The water pump is the core component of the kit, responsible for circulating coolant through the engine to maintain optimal operating temperatures. It is driven by a belt connected to the engine’s crankshaft.

Gaskets

Gaskets are included to ensure a proper seal between the water pump and the engine block, preventing coolant leaks. They are crucial for maintaining the integrity of the cooling system.

O-Rings

O-rings are used to seal various connections within the water pump and between the pump and other components. They help to prevent coolant loss and ensure efficient operation of the cooling system.

Bolts and Nuts

Bolts and nuts are provided to secure the water pump to the engine block. They ensure that the pump remains firmly in place and operates correctly under the stresses of engine operation.

Seal

The seal is designed to prevent coolant from leaking out of the water pump. It is typically located where the impeller shaft passes through the pump housing.

Impeller

Although not always included in every water pump kit, if present, the impeller is a critical component that moves coolant through the system by spinning as the pump operates.

Thermostat (if included)

Some water pump kits may include a thermostat, which regulates the flow of coolant to the radiator based on engine temperature, ensuring the engine reaches and maintains its optimal operating temperature.

Weir Plate (if included)

A weir plate may be included to help direct the flow of coolant within the water pump, improving efficiency and reducing the risk of cavitation.

Instructions

Detailed instructions are typically included to guide the user through the installation process, ensuring that the water pump is installed correctly and functions as intended.

Conclusion

The Cummins 4955359 Water Pump Kit is a vital component for maintaining the optimal operation of commercial truck engines. Its robust design, quality materials, and comprehensive kit components ensure efficient coolant circulation, preventing engine overheating and contributing to the engine’s longevity and performance. Regular maintenance and prompt troubleshooting of common issues are essential for maximizing the benefits of this part.