Land Rover Discovery 4 L319 Windscreen Washer Container Tank AH22-17A645-AD

The Land Rover Discovery 4 L319 washer fluid reservoir is an original component of the washer system, designed for installation in the fourth-generation Discovery model. As part of the Washer Tanks, Pumps, and Nozzles category, it ensures a stable supply of fluid to the system, which translates to safe visibility in various weather conditions. A used OEM component allows you to maintain the factory washer performance characteristics at a reasonable service cost.

Specifications and technical data

• SKU: AH22-17A645-AD
• Mark: Land Rover
• Condition: Used
• OEM Part Number: AH22-17A645-AD
• Substitutable numbers: LR013953, AH2217A646AD, AH22-17A645-AD, AH2217A645AD
• Part type: Reservoir
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and Function in the Washer System

The presented reservoir is a system component responsible for storing washer fluid for the windshield and headlights (depending on vehicle configuration). Its task is to provide an adequate amount of working medium for the pumps and nozzles, so that the system can operate stably during both short and long spraying cycles.

In conjunction with pumps and nozzles from the same construction group, it forms a cohesive, factory system that limits the risk of air ingress, leaks, and fluid pressure drops. This allows the driver to maintain a clear windshield and headlights, which directly impacts driving safety.

Original Origin and Compatibility

Original Land Rover brand means maintaining the correct geometry of mountings, spigots, and connection points for hoses and sensors. The reservoir is designed for the specific body architecture of the Discovery 4 L319, which facilitates installation at factory points without the need for modifications.

An additional advantage is the presence of a dedicated OEM part number and associated replacement numbers, which simplifies verification of compatibility by VIN or by catalog numbers in professional service catalogs. This allows a mechanic or service advisor to quickly confirm the part's fitment for a specific engine version and model year.

Condition, Quality, and Benefits of Choosing a Used Part

The component is offered as a used part, which significantly reduces the repair cost compared to a new OEM component, while maintaining the original design and material. Reservoirs of this type, when operated correctly, are characterized by long service life, which is why the use of a tested used part is a frequently chosen solution in workshops specializing in the Land Rover brand.

In practice, this means:

• factory fit to the body and washer system of the Discovery 4 L319,
• retention of original mounting points and connections,
• optimal cost-to-functionality ratio for accident repairs and operational maintenance.

Professional Selection and Installation

To fully utilize the potential of this reservoir, installation in a specialized service center is recommended, which will verify the system's tightness, the condition of hoses, pumps, and nozzles. Proper installation minimizes the risk of leaks, improper fluid suction, and errors related to level sensors.

In case of extensive body repairs or replacement of multiple washer system components, it is advisable to use technical catalogs and reference numbers to select compatible pumps and nozzles from the same construction group. This approach is particularly important in premium class vehicles, where component consistency contributes to trouble-free operation.

Related Components and Technical Support

If you plan to replace other washer system components in your Land Rover, such as pumps or nozzles, as part of the repair, check the available parts in the category Land Rover Washer Tanks, Pumps, and Nozzles.

For users who want to better understand the principles of selecting parts by OEM and reference numbers, as well as the differences between regeneration and part replacement, an article describing the diagnostics and maintenance of fuel supply systems may be helpful, available here: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Regeneration.