3000259
Water Inlet Connection
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$269.95 $321.24

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Water Inlet Connection (Part #3000259) by Cummins is a component designed for use in commercial truck cooling systems. Its purpose is to facilitate the efficient flow of coolant into the engine, playing a significant role in maintaining optimal engine temperature during operation. This part is integral to the overall cooling mechanism, ensuring that the engine operates within safe temperature ranges, thereby contributing to the longevity and reliability of the truck 1.

Basic Concepts of Water Inlet Connection

Water inlet connections in truck cooling systems serve as the entry point for coolant into the engine. These connections are part of a larger system that includes the radiator, water pump, and various hoses and fittings. The primary function of a water inlet connection is to direct coolant from the radiator into the engine block, where it absorbs heat. This heated coolant then returns to the radiator, where it is cooled before re-entering the engine. The integration of the water inlet connection within this system is crucial for the effective management of engine temperature 2.

Purpose and Role in Truck Operation

The 3000259 Water Inlet Connection by Cummins is specifically designed to enhance the flow of coolant within the truck’s engine cooling system. By providing a secure and efficient pathway for coolant to enter the engine, it helps maintain optimal engine temperature. This is achieved through precise engineering that ensures a consistent and reliable flow of coolant, which is vital for the engine’s performance and durability under various operating conditions 3.

Key Features

The 3000259 Water Inlet Connection is constructed from high-quality materials, ensuring durability and resistance to corrosion. Its design includes features such as precise threading and sealing surfaces, which facilitate a secure connection to the engine and radiator. These elements contribute to the part’s performance by ensuring a leak-free seal and efficient coolant flow. Additionally, the connection is designed to withstand the high pressures and temperatures typical of commercial truck engines.

Benefits

The use of the 3000259 Water Inlet Connection offers several advantages. It improves coolant flow, which enhances the engine’s cooling efficiency. This, in turn, contributes to better engine protection by maintaining optimal operating temperatures. Furthermore, the efficient cooling provided by this part can lead to improved overall truck efficiency and reliability, as engines that operate within their designed temperature ranges tend to have longer service lives and require less frequent maintenance.

Installation Process

Installing the 3000259 Water Inlet Connection requires careful attention to detail to ensure proper fitting and functionality. The process involves disconnecting the old connection, cleaning the mating surfaces, applying a compatible sealant if necessary, and then securely attaching the new connection. It is important to follow the manufacturer’s guidelines for torque specifications to avoid over-tightening, which could damage the connection, or under-tightening, which could lead to leaks.

Common Issues and Troubleshooting

Typical problems associated with water inlet connections include leaks, corrosion, and blockages. Leaks can often be traced to improper installation or wear and tear on the connection. Corrosion may be addressed through regular cleaning and the use of compatible coolants. Blockages can be prevented by ensuring the cooling system is free of debris and that the coolant is changed according to the manufacturer’s recommendations. Troubleshooting these issues promptly can help maintain the efficiency of the cooling system and prevent engine damage.

Maintenance Recommendations

To ensure the longevity and optimal performance of the 3000259 Water Inlet Connection, regular maintenance is recommended. This includes periodic inspections for signs of wear, corrosion, or leaks. Cleaning the connection and its surrounding areas can prevent buildup that might impede coolant flow. Additionally, adhering to the manufacturer’s guidelines for coolant change intervals and using the recommended type of coolant can contribute to the part’s durability and the overall efficiency of the cooling system.

Cummins 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 has established a strong reputation in the commercial truck industry for producing reliable and high-performance components. The company’s extensive product portfolio includes a wide range of parts and systems designed to enhance the efficiency, reliability, and performance of commercial vehicles. The manufacturing of the 3000259 Water Inlet Connection is a testament to Cummins’ commitment to quality and innovation in the automotive and heavy-duty truck sectors.

Role of Part 3000259 Water Inlet Connection in Engine Systems

The 3000259 Water Inlet Connection is integral to the efficient operation of engine cooling systems. It serves as the primary interface between the water pump and the manifold, facilitating the smooth and consistent flow of coolant throughout the engine.

Interaction with the Water Pump

The water pump is responsible for circulating coolant through the engine. The 3000259 Water Inlet Connection attaches directly to the water pump, ensuring a secure and leak-free seal. This connection allows the pump to draw coolant from the reservoir and propel it through the engine’s cooling passages. The design of the inlet connection minimizes resistance, allowing for optimal flow rates and efficient cooling.

Connection to the Manifold

Once the coolant is pumped from the reservoir, it travels through the 3000259 Water Inlet Connection into the manifold. The manifold distributes the coolant to various parts of the engine, including the cylinder heads, blocks, and other critical components that require cooling. The inlet connection’s precise fit and design ensure that the coolant is evenly distributed, preventing hotspots and maintaining consistent engine temperatures.

Ensuring System Integrity

The 3000259 Water Inlet Connection plays a significant role in maintaining the integrity of the cooling system. By providing a reliable connection point between the water pump and the manifold, it helps prevent leaks and ensures that the coolant system operates under the correct pressure. This is essential for the longevity and performance of the engine, as consistent coolant flow is vital for dissipating heat generated during operation.

Enhanced Cooling Efficiency

The efficient design of the 3000259 Water Inlet Connection contributes to the overall cooling efficiency of the engine. By ensuring a smooth transition from the water pump to the manifold, it reduces the likelihood of turbulence or blockages within the coolant flow. This results in more effective heat dissipation and helps maintain optimal engine operating temperatures, even under high-stress conditions.

Conclusion

The 3000259 Water Inlet Connection by Cummins is a critical component in the cooling systems of commercial trucks, ensuring efficient coolant flow and optimal engine temperature management. Its robust construction, precise design, and integration within the cooling system contribute to the longevity, reliability, and performance of the engine. Regular maintenance and proper installation are essential to maximize the benefits of this part and ensure the overall efficiency of the truck’s cooling system.


  1. Lakshminarayanan, P. A., & Kumar, A. (2020). Design and Development of Heavy Duty Diesel Engines: A Handbook. Springer Nature.

  2. Dixon, J. (2014). Modern Diesel Technology: Heating, Ventilation, Air Conditioning, Refrigeration, 2nd Edition. Cengage Learning.

  3. Miedema, S. A., & Lu, Z. (2010). The Dynamic Behavior of a Diesel Engine. Published by Drir S. A. Miedema.

SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
7.8 x 7.8 x 4.63 in
Weight
3.2 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.