Land Rover Discovery 4 L319 Coolant Hose Line Pipe Set AH22-18B402-AB

Visual condition of the part

The product shows signs of use visible in the photos.

Land Rover Discovery 4 L319 Coolant Hose Line Pipe Set is an original component from the Cooling system hoses and pipes group, designed to operate in the demanding environment of the engine bay. This used Land Rover part allows for maintaining the factory coolant flow characteristics and proper integration with other system components.

Specifications and technical data

• SKU: LR021657
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR021657
• Substitutable numbers: LR021657, AH22-18B402-AB, AH2218B402AB
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented coolant hose is responsible for directing coolant between selected engine components and the radiator in the Discovery 4 L319 model. The properly shaped geometry of the pipe ensures a stable flow of the working medium, which translates into maintaining the correct operating temperature of the power unit and uniform heat dissipation.

Selecting a hose dedicated to a specific Land Rover design limits the risk of leaks, material stress, and collisions with other elements in the engine bay. As a result, the cooling system can operate predictably, which is important for both engine durability and vehicle safety in varied road conditions.

Advantages of using an original Land Rover hose

Using an original hose in the Discovery 4 L319 cooling system allows for maintaining the parameters specified by the vehicle manufacturer. The element has been designed for a specific coolant path, connection diameters, and compatibility with factory clamps and connectors, which facilitates installation and reduces the need for modifications.

Key benefits include:

• Factory fitment for the cooling system of a specific body and engine version, with no modifications required.
• Stable coolant flow, which helps maintain the optimal operating temperature of the power unit.
• Compatibility with other Land Rover cooling system components, which simplifies service and diagnostics.

A used element from this group is an attractive solution for users looking for a technically sound yet economical cooling system repair while maintaining the original vehicle specifications.

Installation and operational characteristics

The coolant pipe designed for the Discovery 4 L319 has been engineered to work at elevated temperatures and under conditions of variable thermal loads. The appropriate shape and placement of connections allow for correct routing of the hose in the engine bay, maintaining the required clearances from moving parts and heat sources.

When replacing the hose, it is recommended to:

• inspect the condition of the remaining cooling system sections and clamps,
• check for leaks after installation and bleed the system,
• use coolant that complies with the vehicle manufacturer's recommendations.

This approach allows you to fully utilize the potential of the installed hose and reduce the risk of further service interventions in the near future.

Technical support and additional information

In the case of cooling systems, it is particularly important to understand the impact of ambient temperature on the operation of the entire system. If you want to deepen your knowledge about operation in high temperatures and ways to optimize repair costs, check out our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.

If you are considering choosing between new and used parts and want to consciously approach the issue of budget, durability, and component availability, the following article may also be helpful: Car parts – new or used? We compare costs, quality, and durability.

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other elements from the same group, such as additional pipes, flexible hoses, or coolant return sections, check the available parts in the Land Rover cooling system hoses and pipes category.