4003251
Expansion Tank Bracket
Cummins®

Introduction

The Cummins 4003251 Expansion Tank Bracket is a component designed to support the expansion tank within the cooling system of commercial trucks. Its purpose is to securely mount the expansion tank, ensuring it remains in place and functions effectively as part of the engine’s cooling mechanism.

Basic Concepts of Expansion Tank Brackets

An expansion tank bracket serves as a mounting point for the expansion tank, which is a part of the cooling system. The expansion tank allows for the safe expansion of coolant as it heats up, preventing pressure build-up that could lead to leaks or damage. The bracket ensures the tank is held firmly in place, facilitating the proper operation of the cooling system and interaction with other components such as the radiator and coolant lines ¹.

Purpose of the 4003251 Expansion Tank Bracket

This Cummins part plays a specific role in the operation of a truck’s cooling system by providing a stable mounting solution for the expansion tank. This stability is vital for maintaining optimal engine temperature, as it ensures the expansion tank can effectively manage the volume changes of the coolant as it cycles through the system.

Key Features

The 4003251 Expansion Tank Bracket is constructed from durable materials, designed to withstand the rigors of commercial truck environments. Its design includes precise mounting points that align with the expansion tank and the truck’s chassis, ensuring a secure fit. Additionally, the bracket may feature corrosion-resistant coatings or treatments to enhance its longevity and performance in various operating conditions.

Benefits

Using this part offers several benefits, including improved durability due to its robust construction. It enhances cooling efficiency by ensuring the expansion tank is properly positioned and secured, which is crucial for the effective operation of the cooling system. Furthermore, the bracket is designed for ease of installation, reducing downtime during maintenance procedures ².

Installation Process

Installing the 4003251 Expansion Tank Bracket involves several steps. First, ensure the truck’s engine is cool and the cooling system is depressurized. Locate the designated mounting points on the chassis. Align the bracket with these points and secure it using the provided fasteners. Ensure the expansion tank is properly aligned with the bracket before tightening all connections. Tools required may include a socket set and torque wrench to ensure fasteners are tightened to the manufacturer’s specifications.

Troubleshooting Common Issues

Common issues with this Cummins part may include leaks around the mounting points or difficulties in securing the bracket firmly in place. To address leaks, inspect the gaskets or seals between the bracket and the expansion tank, replacing them if necessary. For mounting problems, ensure all fasteners are tightened correctly and that the bracket is aligned properly with the chassis mounting points.

Maintenance Tips

Regular maintenance of the 4003251 Expansion Tank Bracket involves inspecting it for signs of wear or damage, particularly after periods of heavy use. Cleaning the bracket and its mounting points can prevent corrosion and ensure a secure fit. It is also advisable to check the fasteners periodically to ensure they remain tight, maintaining the bracket’s secure attachment to the chassis.

Compatibility and Application

The 4003251 Expansion Tank Bracket is designed for use with specific types of trucks and engines. It is important to verify compatibility with the truck model and engine series to ensure proper fit and function.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its commitment to quality and innovation in automotive components. With a history of developing reliable and efficient engine solutions, Cummins continues to be a trusted name in the industry, providing components that enhance the performance and durability of commercial vehicles ³.

Cummins Expansion Tank Bracket 4003251 Compatibility

The Cummins Expansion Tank Bracket, part number 4003251, is designed to fit seamlessly with a range of Cummins engines, ensuring proper mounting and functionality of the expansion tank. This bracket is integral to maintaining the cooling system’s efficiency and durability across various engine models.

Engine Compatibility

• 6C8.3 Series: The 4003251 bracket is specifically engineered to fit the 6C8.3 engine series. This compatibility ensures that the expansion tank is securely fastened, preventing any potential leaks or malfunctions that could arise from improper mounting.

Installation and Functionality

When installed, the expansion tank bracket 4003251 provides a stable platform for the expansion tank, allowing it to perform its role in the engine’s cooling system. By securely attaching the tank to the engine, it helps manage the thermal expansion of the coolant, thereby maintaining optimal engine temperature and preventing overheating.

Importance of Proper Fitment

Ensuring that the expansion tank bracket is correctly fitted to the engine is essential for the overall health and longevity of the engine. An improperly mounted expansion tank can lead to coolant leaks, which can cause significant engine damage over time. The 4003251 bracket is designed to provide a precise fit, ensuring that the expansion tank operates as intended.

Application Across Models

While the primary focus here is on the 6C8.3 series, it is important to note that Cummins has designed the 4003251 bracket to be versatile, fitting various other models within the Cummins engine lineup. This adaptability makes it a valuable component for maintaining the integrity of the cooling system across different engine types.

Role of Part 4003251 Expansion Tank Bracket in Engine Systems

The Expansion Tank Bracket, identified by part number 4003251, is integral to the secure mounting and operational efficiency of the expansion tank within engine systems. This bracket ensures that the expansion tank is properly positioned and supported, which is essential for the tank’s function in managing coolant overflow and maintaining system pressure.

When integrated with the heat exchanger, the Expansion Tank Bracket helps in stabilizing the expansion tank. This stability is important as the heat exchanger operates under varying thermal conditions, causing fluctuations in coolant volume. The bracket’s secure hold prevents any undue movement of the expansion tank, which could otherwise lead to leaks or inefficient coolant circulation.

In conjunction with the expansion tank, the bracket plays a supportive role by absorbing vibrational stresses that occur during engine operation. This support is vital for the longevity and reliability of the expansion tank, ensuring it can effectively capture excess coolant and release it back into the system as needed without compromising structural integrity.

Overall, the Expansion Tank Bracket (part 4003251) is a key component in maintaining the structural and functional harmony within engine cooling systems, facilitating efficient heat management and coolant flow.

Conclusion

The 4003251 Expansion Tank Bracket is a critical component in the cooling system of commercial trucks, ensuring the secure and efficient operation of the expansion tank. Its robust construction, ease of installation, and compatibility with various Cummins engine models make it an essential part for maintaining engine performance and durability. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part.