Range Rover L405 Engine Coolant Hose Pipe Tube Line 4.4 Diesel CPLA-8063-DF

Range Rover L405 Engine Coolant Hose Pipe Tube Line 4.4 Diesel is an original cooling system component designed for 4.4 diesel engines in the Range Rover L405 model. It is responsible for the stable flow of coolant, which translates into a safe operating temperature for the power unit and its long-term, predictable performance. This is the solution for users looking for a factory-fitted hose instead of random replacements.

Specifications and technical data

• SKU: CPLA-8063-DF
• Mark: Land Rover
• Condition: Used
• OEM Part Number: CPLA-8063-DF
• Substitutable numbers: LR041799, CPLA-405A26-A, CPLA405A26A, CPLA-405A26-A-TPG, CPLA405A26ATPG, CPLA-46420-BA, CPLA46420BA, CPLA-16A938-AB, CPLA16A938AB, CPLA8063DF, CPLA-8063-DF, LR080118
• Fuel type: Diesel
• Part type: Hose
• Category: Coolant Hoses

Purpose and role in the cooling system

The hose belongs to the Cooling system hoses and pipes group and operates in the 4.4 diesel engine coolant circuit. Its task is to direct fluid between system components to maintain a stable temperature distribution throughout the engine block and accessories. Proper selection of the hose in this area has a direct impact on:

• maintaining the optimal operating temperature of the diesel engine,
• reducing the risk of overheating under heavy loads,
• proper cooperation with other cooling system components.

Why choose an original Land Rover hose

The original Land Rover cooling hose is designed for the specific geometry of the Range Rover L405 engine bay, ensuring:

• precise fit of diameters and shape to connectors and mounts,
• stable hose routing without tension or twisting,
• appropriate material resistance to temperature and pressure in the diesel engine. Compared to cheap replacements, the factory hose reduces the risk of leaks, abrasions, and incorrect positioning in the engine bay, which is particularly important in the heavy, high-output 4.4 Diesel powertrain.

Operating characteristics in the 4.4 Diesel engine

Diesel units generate high thermal loads, which is why a properly selected cooling hose is crucial for the stability of the entire system. This component is adapted to work with diesel engines, where the following are typical:

• higher coolant temperatures during long-term driving under load,
• frequent changes in thermal load during off-road and highway driving,
• the requirement to maintain tightness over long mileages. As a result, the hose fits well into the operational requirements of the Range Rover L405 used in both urban and off-road conditions.

Condition, origin, and service application

The offered item comes from disassembly and is marked as a used original component by Land Rover. This is a practical solution for owners who want to maintain the factory cooling system specification while optimizing repair costs. The hose is suitable for:

• repairs after cooling system failure (leaks, hose cracks),
• preventive replacement of rubber components in older vehicles,
• restoring the original configuration after previous modifications.

Technical support and parts selection

When working on the cooling system, it is worth using technical knowledge regarding original components. If you want to better understand why using factory cooling system elements is beneficial for engine durability, read the article: Cooling system failure: why is an original used radiator a safer choice than a cheap replacement?. This will allow you to consciously plan further service actions for your car. 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 hoses, return pipes, or sections connecting the radiator to the engine, check the available parts in the Land Rover cooling system hoses and pipes category.