Land Rover Discovery Sport L550 Water Coolant Pump Unit 2.0 AJ200 G4D3-8501-AH

The Land Rover Discovery Sport L550 Water Pump G4D3-8501-AH is an original part from the Water Pumps group, designed for the cooling system in the Discovery Sport L550 model. This used OEM part ensures a factory fit, stable operating parameters, and proper heat dissipation from the engine, contributing to the safe operation of the vehicle.

Specifications and technical data

• SKU: LR129893
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR129893
• Substitutable numbers: LR129893, G4D3-8501-AH, G4D38501AH
• Category: Water Pumps

Purpose and Function in the Cooling System

The presented water pump is responsible for the forced circulation of coolant in the Land Rover Discovery Sport L550 engine. A properly functioning component of this type stabilizes the engine's temperature, reduces the risk of overheating, and supports uniform heat dissipation from the engine block and cylinder head.

Thanks to its construction compliant with the Land Rover manufacturer's standards, the pump works in conjunction with the factory thermostat, radiator, and hoses, maintaining original flow characteristics. This solution is particularly beneficial for users who want to keep engine operating parameters at the level intended by the vehicle manufacturer.

Advantages of Using an Original Water Pump

Using an original water pump in the Discovery Sport L550 maintains the integrity of the entire cooling system. In practice, this means:

• factory fit for engine accessory drive and mountings,
• appropriately selected coolant flow rate,
• compatibility with standard cooling system components,
• reduced risk of leaks due to imprecise fitting.

A used OEM part is also a cost-effective choice while maintaining high quality of workmanship and predictable performance in operation.

Selection by Numbers and Compatibility

The water pump has been specifically designed for the engine configurations used in the Land Rover Discovery Sport L550. Selection is based on the OEM part number and associated replacement numbers, which facilitates precise matching to the specific engine version and model year of the vehicle.

In the product description and the technical specifications section, you will find designations that allow you to verify compatibility with your vehicle. This minimizes the risk of purchasing an incorrect part and allows for more efficient planning of cooling system service work.

Condition and Service Application

The water pump is offered as a used part, making it an attractive solution for operational repairs, especially in vehicles out of warranty. This type of part is suitable for both standard replacement of worn cooling system components and for larger service jobs related to engine maintenance.

Water pump replacement is recommended, among other things, when noticeable coolant leaks are observed around the pump housing, unusual noises are heard from the accessory drive area, or during planned timing belt service (depending on the specific engine configuration). Using an original part ensures predictable operating parameters for the entire system.

Technical Support and Additional Information

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other parts from the same group, such as additional pumps, coolant circuit components, or related cooling parts, check the available parts in the Land Rover Water Pumps category.

To better understand the relationships between pumps, injectors, and other fuel and cooling system components, it is worth reading the guide on diagnostics and part selection by OEM numbers – you can find it in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses practical aspects of working with catalog numbers and service procedures.