4943180
Raw Water Pump Major Kit
Cummins®

The Cummins Raw Water Pump Major Kit (Part #4943180) is a comprehensive assembly designed to enhance the efficiency and reliability of the cooling system in heavy-duty trucks. This kit is integral to maintaining optimal engine temperature, ensuring consistent performance and longevity of the engine components ¹.

Function and Operation

This Cummins part operates within the cooling system of a truck engine by circulating coolant through the engine block and radiator. The pump ensures that coolant is evenly distributed, which helps in dissipating heat generated by the engine. This circulation is vital for preventing overheating and maintaining engine efficiency ².

Key Features

The Raw Water Pump Major Kit includes several primary components, each playing a specific role in the cooling process. The impellers are responsible for moving the coolant through the system. Seals are used to prevent leaks and maintain the integrity of the pump housing. Bearings support the impeller shaft, reducing friction and wear. These components work together to ensure the pump functions effectively under various operating conditions ¹.

Benefits of Using the Raw Water Pump Major Kit

Using this part offers several advantages. It contributes to improved engine performance by ensuring consistent coolant flow, which helps in maintaining optimal engine temperature. The kit enhances the reliability of the cooling system, reducing the risk of overheating and related engine damage. Additionally, it supports the longevity of the engine by providing a robust and efficient cooling solution ².

Installation Process

Installing the Raw Water Pump Major Kit involves several steps to ensure proper integration into the engine’s cooling system. Begin by draining the coolant from the system to prevent spills during installation. Remove the old pump and inspect the pump housing for any damage. Install the new pump by aligning the impeller with the engine block and securing it in place. Reconnect the coolant lines and refill the system with coolant. Finally, check for leaks and ensure the pump is operating correctly ¹.

Maintenance and Troubleshooting

Regular maintenance of the Raw Water Pump Major Kit is important for its continued efficiency. Inspect the pump and its components periodically for signs of wear or damage. Common issues include leaks, impeller wear, and bearing failure. To troubleshoot, check the seals for integrity, ensure the impeller is not damaged, and verify that the bearings are functioning smoothly. Addressing these issues promptly can prevent more significant problems and extend the life of the pump ².

Cummins Company Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins is committed to innovation and sustainability in the automotive industry. The company offers a wide range of products designed to meet the needs of various industries, including transportation, construction, and agriculture. Cummins’ dedication to quality and performance is evident in its extensive product line, which includes engines, components, and complete power systems ³.

Components of Cummins 4943180 Raw Water Pump Major Kit

The Cummins 4943180 Raw Water Pump Major Kit is a comprehensive assembly designed to facilitate the repair and maintenance of raw water pumps. Each component within this kit plays a crucial role in ensuring the pump’s functionality and durability. Below is a detailed description of the components and their roles within the kit:

• O Ring Seals (3866633 and 4019428): These seals are critical for preventing leaks within the pump system. They are positioned in areas where components meet, ensuring a tight seal that prevents water from escaping.

• Retaining Rings (4019407 and 4019411): These components are used to secure parts in place within the pump assembly. They help maintain the structural integrity of the pump by holding components such as bearings and seals in their correct positions.

• Plain Washer (4019410): This washer is utilized to distribute the load and prevent damage to the surfaces it is placed between. It also helps in maintaining proper spacing and alignment of components.

• Water Pump Impeller (4942087): The impeller is a central component of the pump, responsible for moving water through the system. It consists of vanes that rotate to create a flow of water, which is essential for the pump’s operation.

• Plate Seal (4942088): This seal is used to create a barrier between different sections of the pump, ensuring that water does not mix with other fluids or escape from the system.

• Molded Seals (4942089 and 4942093): These seals are custom-shaped to fit specific areas within the pump. They provide a reliable seal in irregular shapes and are crucial for maintaining the pump’s efficiency and preventing leaks.

• Thrust Bearing Wear Plate (4942090): This plate is designed to protect the thrust bearing from wear and tear. It absorbs the axial forces generated during pump operation, extending the life of the bearing.

• Hexagon Head Cap Screw (4942091): This screw is used for fastening components together within the pump. Its hexagonal head allows for secure tightening, ensuring that parts remain firmly in place.

• Cover Plate (4942092): The cover plate serves as a protective barrier for the internal components of the pump. It also helps in directing the flow of water and maintaining the structural integrity of the pump housing.

• Water Slinger (4942094): This component is designed to remove excess water from the pump’s rotating parts. It helps in maintaining the efficiency of the pump by ensuring that water does not accumulate in areas where it could cause damage.

• Accessory Drive Shaft (4942095): The drive shaft is responsible for transferring power from the engine to the pump. It ensures that the pump operates at the correct speed and efficiency.

• Service Tool (4942096): This tool is included in the kit to facilitate the installation and maintenance of the pump components. It is designed to make the repair process easier and more efficient.

Conclusion

The Cummins Raw Water Pump Major Kit (Part #4943180) is a vital component for maintaining the efficiency and reliability of heavy-duty truck cooling systems. By ensuring consistent coolant flow and optimal engine temperature, this part contributes to improved engine performance and longevity. Regular maintenance and prompt troubleshooting of common issues can further enhance the durability and effectiveness of the pump.