Land Rover Discovery L550 Auxiliary Water Pump DX23-18D474-AC

The Land Rover Discovery L550 Auxiliary Water Pump DX23-18D474-AC is an original cooling system component from the water pumps category, designed for vehicles with gasoline engines. Its carefully selected design ensures stable support for the coolant circulation, which translates to safe operation of the powertrain and predictable thermal parameters in daily use.

Specifications and technical data

• SKU: LR049317
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR049317
• Substitutable numbers: LR049317, DX2318D474AC, DX23-18D474-AC
• Fuel type: Petrol
• Part type: Engine Water Pump
• Category: Water Pumps

Application and Role in the Cooling System

The auxiliary water pump in the Land Rover Discovery L550 is responsible for the additional circulation of coolant in selected circuits of the system, relieving the main pump and stabilizing the operating temperature of the gasoline engine. A properly functioning component of this type:

• supports maintaining the optimal temperature of the powertrain under variable load,
• improves cooling efficiency in urban conditions and at low speeds,
• reduces the risk of local overheating in critical areas of the system.

Thanks to this, the cooling system maintains stability, and the engine's operating parameters remain repeatable and predictable.

Compatibility and OEM Identification

The presented auxiliary water pump is a component intended for use in the Land Rover Discovery L550 with a gasoline engine. Identification by OEM number and available replacement numbers allows for precise matching of the part to the specific vehicle configuration, minimizing the risk of installation incompatibility.

When selecting, it is recommended to verify compatibility by OEM number, reference numbers, and manufacturer's catalog data, as well as to compare the shape of the housing, connection spigots, and mounting method with the currently installed component.

Technical Characteristics and Installation

As an original Land Rover part, the auxiliary water pump retains the factory geometry, mounting points, and connection standards, which facilitates installation in place of a worn-out part. The design is prepared for operation in systems with gasoline fuel, taking into account the typical temperature ranges and thermal loads for these units.

During installation, it is worth paying attention to:

• proper bleeding of the cooling system after replacement,
• checking the condition of hoses and clamps,
• using the correct coolant in accordance with the vehicle manufacturer's recommendations.

Replacement carried out in this way promotes trouble-free operation of the pump and the entire cooling system in the long term.

Component Condition and Benefits of Choosing OEM Parts

The offered auxiliary water pump is a used part, sourced from disassembly, which allows for economical restoration of the cooling system's efficiency while maintaining the original manufacturer's specifications. Choosing OEM parts ensures:

• maintaining factory coolant flow parameters,
• consistency with the existing installation and engine accessories,
• reduced risk of fitting problems compared to aftermarket parts of uncertain specifications.

For vehicles operated intensively or in varied road conditions, using an original auxiliary water pump helps maintain engine operating stability and predictable cooling system behavior.

Other Land Rover Water Pumps and Technical Knowledge

If you are looking for other Land Rover water pumps compatible with various models of this brand, check out the Land Rover water pumps available in our store to select a part that matches the specific engine version and vehicle year.

When planning comprehensive service work, it is also worth expanding your knowledge of fuel supply and flows in powertrain systems. An article describing the operation and diagnostics of fuel supply components may be helpful – you can find it here: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair. This will allow you to better plan the service of the entire powertrain system in your car.