3348939
Water Inlet Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$369.95 $440.24

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 Tube 3348939 is a component manufactured by Cummins, a well-established name in the heavy-duty truck industry. This tube is integral to the operation of heavy-duty trucks, specifically within the engine cooling system. Cummins is renowned for its robust and reliable engine components, and the Water Inlet Tube 3348939 is no exception. This part ensures efficient coolant flow, contributing to the overall performance and longevity of the engine 2.

Basic Concepts of Water Inlet Tubes

A water inlet tube is a vital component in the engine cooling system of a vehicle. Its primary function is to direct coolant from the radiator into the engine block. This process helps maintain optimal engine temperature by ensuring that the coolant circulates effectively through the engine’s critical components. Proper coolant flow is essential for dissipating heat generated during engine operation, thereby preventing overheating and potential engine damage 1.

Purpose of the Water Inlet Tube 3348939

The Water Inlet Tube 3348939 plays a specific role in the cooling system of a truck by facilitating the flow of coolant from the radiator to the engine block. This tube is designed to ensure that coolant is distributed evenly throughout the engine, which is crucial for maintaining consistent temperatures across all engine components. By doing so, it helps protect the engine from thermal stress and enhances its overall efficiency and reliability 2.

Key Features

The Water Inlet Tube 3348939 is constructed with high-quality materials to ensure durability and performance. It features a robust design that can withstand the high pressures and temperatures typical in heavy-duty truck engines. The tube is made from corrosion-resistant materials, which helps extend its service life. Additionally, it includes precise connection types that ensure a secure fit within the engine cooling system, minimizing the risk of leaks and ensuring optimal coolant flow 2.

Benefits

The Water Inlet Tube 3348939 offers several advantages. Its design enhances coolant flow, which contributes to more effective engine cooling. This results in better engine protection against overheating, especially under demanding operating conditions. The tube’s durable construction ensures reliability, reducing the likelihood of failures and the need for frequent replacements. Furthermore, its efficient design helps maintain engine performance and longevity 2.

Installation Considerations

When installing the Water Inlet Tube 3348939, it is important to follow specific guidelines to ensure proper fit and function. Compatibility with the engine model should be verified to avoid any issues. Preparatory steps may include cleaning the installation area and inspecting the tube for any damage. Ensuring that all connections are secure and properly sealed is crucial to prevent coolant leaks and maintain efficient coolant flow 2.

Troubleshooting Common Issues

Common problems associated with water inlet tubes include leaks and blockages. Leaks can occur due to improper installation, corrosion, or damage to the tube. Blockages may result from debris or sediment within the coolant system. Diagnostic procedures involve inspecting the tube for visible signs of damage or wear, checking connection points for leaks, and ensuring that the coolant flow is unobstructed. Repair procedures may include replacing damaged sections or the entire tube if necessary 2.

Maintenance Tips

Regular maintenance of the Water Inlet Tube 3348939 is important to ensure its longevity and efficiency. This includes periodic inspections for signs of wear, corrosion, or leaks. Cleaning the tube and its connections can help prevent blockages and ensure smooth coolant flow. Additionally, following the manufacturer’s recommended maintenance schedule for the cooling system can help identify and address potential issues before they become serious problems 2.

Cummins Overview

Cummins Inc. is a leading manufacturer in the heavy-duty truck industry, known for its high-quality engine components and systems. Founded in 1919, Cummins has a long history of innovation and excellence. The company offers a wide range of products, including engines, filtration systems, and aftermarket parts, all designed to meet the demanding needs of heavy-duty applications. Cummins is recognized for its commitment to quality, reliability, and customer satisfaction, making it a trusted name in the industry 3.

Cummins Water Inlet Tube 3348939 Compatibility

The Cummins Water Inlet Tube part number 3348939 is designed to fit seamlessly within various engine configurations. This part is integral to the engine’s cooling system, ensuring efficient water flow and temperature regulation.

Engine Compatibility

  • K38 Series Engines

    • The K38 series engines, known for their robust performance and reliability, are compatible with the Water Inlet Tube 3348939. This part ensures that the engine maintains optimal operating temperatures by facilitating the proper flow of coolant.
  • Other Cummins Engines

    • Beyond the K38 series, the Water Inlet Tube 3348939 is also compatible with a range of other Cummins engines. These engines benefit from the precise engineering of the part, which helps maintain the integrity of the cooling system and enhances overall engine performance.

Installation and Functionality

  • Precision Fit

    • The Water Inlet Tube 3348939 is engineered to provide a precise fit, ensuring that it integrates smoothly with the engine’s design. This precision minimizes the risk of leaks and ensures that the coolant flows efficiently through the system.
  • Durability

    • Constructed from high-quality materials, the Water Inlet Tube 3348939 is built to withstand the rigors of engine operation. Its durability ensures a long service life, reducing the need for frequent replacements and maintenance.
  • Ease of Installation

    • Designed for ease of installation, the Water Inlet Tube 3348939 can be fitted by technicians with relative ease. This design feature helps streamline maintenance procedures, allowing for quicker turnaround times and reduced downtime 3.

Role of Part 3348939 Water Inlet Tube in Engine Systems

The Water Inlet Tube (part 3348939) is an essential component in the fluid management system of various engine setups. Its primary function is to facilitate the controlled entry of water into the engine’s cooling system, ensuring optimal temperature regulation.

In an arrangement involving multiple engine components, the Water Inlet Tube connects to the engine block or cylinder head, allowing coolant to flow into the system. This connection is vital for maintaining the engine’s operational temperature, preventing overheating, and ensuring efficient performance.

When integrated with a turbocharger, the Water Inlet Tube plays a significant role in the turbocharger’s cooling system. Turbochargers generate substantial heat due to the high-speed rotation of the turbine and compressor. The Water Inlet Tube supplies coolant to the turbocharger, helping to manage its temperature and enhance its durability and efficiency. This integration ensures that the turbocharger operates within safe thermal limits, contributing to the overall performance and longevity of the engine system 1.

Conclusion

The Water Inlet Tube 3348939 is a critical component in the engine cooling system of heavy-duty trucks. Its role in ensuring efficient coolant flow and maintaining optimal engine temperature is essential for the performance and longevity of the engine. Proper installation, regular maintenance, and timely troubleshooting of common issues are key to maximizing the benefits of this Cummins part. Cummins’ commitment to quality and reliability is evident in the design and functionality of the Water Inlet Tube 3348939, making it a trusted component in the heavy-duty truck industry 23.


  1. Rajamani, R. (2005). Vehicle Dynamics and Control. Springer.

  2. Huzij, R., Spano, A., & Bennett, S. (2014). Modern Diesel Technology Heavy Equipment Systems. Delmar Cengage Learning.

  3. Hick, H., Kupper, K., & Sorger, H. (2021). Systems Engineering for Automotive Powertrain Development. Springer.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
24.5 x 22.0 x 2.5 in
Weight
0.371 lb
* 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.