Range Rover L405 Heater Water Coolant Hose Pipe Line Diesel CPLA-18N252-AC

Range Rover L405 Heater Water Coolant Hose Pipe Line Diesel is an original component from the Cooling system hoses and pipes group, designed for precise coolant circulation in the heater circuit. This used OEM part ensures factory geometry, correct diameter, and proper fitment to the connectors, which facilitates installation and helps maintain the correct performance of the cooling system in diesel-powered Range Rover vehicles.

Specifications and technical data

• SKU: CPLA-18N252-AC
• Mark: Range Rover
• Condition: Used
• OEM Part Number: CPLA-18K252-AC
• Substitutable numbers: LR034617, CPLA-18N252-AC, CPLA18N252AC
• Fuel type: Diesel
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The described hose is responsible for transporting coolant between the heater system components in the diesel-powered Range Rover L405 model. A correctly selected hose ensures:

• stable coolant flow under varying thermal loads of the diesel engine,
• maintenance of connection tightness in the heater area,
• proper compatibility with factory clamps and cooling system connectors.

Thanks to the retention of the original shape and diameter, the hose does not restrict flow, which is essential for uniform interior heating and stable operation of the entire cooling circuit.

Compatibility with Range Rover L405 diesel engines

The component has been designed specifically for use in Range Rover L405 vehicles with a diesel engine. This means it accounts for the higher thermal loads typical of diesel units and the characteristic routing of hoses in the engine bay of this model.

Selecting a hose dedicated to a specific powertrain version reduces the risk of stress, rubbing against adjacent components, and leaks resulting from incorrect hose positioning. This is particularly important in modern designs where space in the engine bay is highly utilized.

Advantages of using an original cooling hose

Using an original hose in the Range Rover L405 heater cooling system provides a number of practical benefits:

• Factory fitment – the geometry and length of the hose correspond to the solution applied by the vehicle manufacturer.
• Stable cooling system operation – the correct internal cross-section supports proper coolant flow.
• Reduced risk of leaks – the hose works with original connectors and clamps, which facilitates achieving tight connections.
• Hassle-free installation – no need for modifications or fitting universal hoses.

A used OEM component is a reasonable compromise between cost and maintaining factory-like parameters, which is significant when servicing advanced cooling systems in premium-class vehicles.

Part condition and service application

The hose comes from dismantling and is offered as a used original component. This type of component is perfect for:

• repairs after a cooling system failure in the heater area,
• eliminating leaks resulting from wear or damage to the existing hose,
• preventive maintenance in vehicles operated under demanding temperature conditions.

Choosing an original hose from the secondary market allows for maintaining the correct operation of the cooling system while reducing costs compared to new parts.

Cooling system service expansion and additional materials

If you are planning a comprehensive repair or upgrade of the cooling system area in your Range Rover and need other elements from the same group, such as additional pipes, return hoses, or sections supplying fluid to the heater, check the available parts in the Range Rover cooling system hoses and pipes category.

To better plan your service and understand the impact of temperatures on the efficiency of the entire circuit, it is worth reading the guide on cooling system operation at high temperatures – you will find it in the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.