Range Rover Sport L494 Water Coolant Pump 3.0 D300 K6D3-8K500-AB

Range Rover Sport L494 Water Coolant Pump 3.0 D300 is an original component from the Water pumps category, designed for the cooling system of the 3.0 D300 diesel engine. This used OEM water pump ensures factory-fit, stable operating parameters, and proper coolant circulation in the Range Rover Sport L494 engine.

Specifications and technical data

• SKU: LR125488
• Mark: Range Rover
• Condition: Used
• OEM Part Number: LR125488
• Substitutable numbers: K6D3-8K500-AB, K6D38K500AB, LR125488
• Part type: Engine Water Pump
• Category: Water Pumps

Purpose and function in the cooling system

The water pump in the 3.0 D300 engine is responsible for the forced circulation of coolant between the engine block, cylinder head, and heat exchangers. A properly functioning pump stabilizes the engine's operating temperature, reduces the risk of overheating, and supports uniform heat dissipation throughout the entire system.

In modern diesel units such as the 3.0 D300, maintaining the correct temperature has a direct impact on component durability, engine refinement, and exhaust emission parameters. Using an original water pump dedicated to the Range Rover Sport L494 ensures compliance with the manufacturer's factory specifications.

Benefits of using an original Range Rover water pump

Choosing an OEM water pump for the Range Rover Sport L494 provides:

• Factory fitment for the 3.0 D300 engine cooling system, with no need for modifications to mounts or hoses.
• Consistency with the original coolant flow characteristics, which facilitates maintaining a stable operating temperature.
• Compatibility with other system components, such as the radiator, thermostat, and coolant hoses.
• Reduced risk of leaks resulting from the imprecise fit of aftermarket replacements.

As a result, installing a used OEM pump is a technically safe and economically justified solution, especially for maintenance repairs in Range Rover vehicles.

Installation and operational characteristics

The water pump designed for the Range Rover Sport L494 with a 3.0 D300 engine is structurally prepared for direct installation in place of the factory component. The precise placement of mounting points and connection ports simplifies the mechanic's work and reduces service time.

When replacing the pump, it is recommended to:

• check the condition of the drive belt and idler pulleys,
• replace the coolant with fresh fluid that meets the vehicle manufacturer's specifications,
• bleed the cooling system after installation to ensure proper coolant circulation.

Performing service in this manner allows you to fully utilize the potential of the installed water pump and reduces the risk of needing further intervention in the cooling system.

Using OEM and interchangeable numbers for part selection

Precise selection of a water pump for the Range Rover Sport L494 should be based on OEM numbers and interchangeable numbers assigned to this model. This enables unambiguous identification of the part, matching it to the specific 3.0 D300 engine version, and avoiding ordering errors. In our store, this data is linked to product parameters, which facilitates verifying compatibility with the vehicle.

Additionally, for users interested in a broader look at diagnostics and the selection of engine supply components, an article describing the principles of operation and maintenance of the fuel system – injectors, pumps, and the tank – may be helpful. More practical information can be found in the material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding Range Rover cooling system service

If you are planning a comprehensive repair or upgrade of the engine area in your Range Rover and need other elements from the same group, such as auxiliary coolant pumps, fluid circulation elements, or cooling support components, check the available parts in the Range Rover Water pumps category.

Using consistent components from the same product group helps maintain uniform operating conditions for the engine and also facilitates future diagnostics and service. This is particularly important in advanced vehicles of the Range Rover Sport L494 class, where the cooling system interacts with many other vehicle systems.