Land Rover Range Rover L322 L405 Coolant Pipe Hose Line 4.4 TDV8 BH42-8260-AD

Land Rover Range Rover L322 L405 Coolant Pipe Hose Line 4.4 TDV8 is an original cooling system component from the Cooling system pipes and hoses group, designed to operate in the demanding environment of the 4.4 TDV8 diesel engine. This used OEM part ensures factory-spec coolant flow geometry and proper fitment to the engine bay ports and mounts, which facilitates installation and reduces the risk of leaks.

Specifications and technical data

• SKU: LR029140
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR029140
• Substitutable numbers: BH42-8260-AD, BH428260AD, LR029140
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented coolant hose is a component dedicated to the 4.4 TDV8 engine in Range Rover L322 and L405 models, where it is responsible for the stable transport of coolant between key system components. The properly shaped pipe allows for maintaining the correct routing in the tight space of the engine bay, minimizing stress, the risk of chafing, and contact with hot or moving parts. By maintaining the factory flow specifications, the hose supports the maintenance of the proper operating temperature of the power unit, which translates into stable engine performance, reduced risk of overheating, and correct interaction with the thermostat and radiator.

Construction and fitment for Range Rover 4.4 TDV8

The original design of the hose was engineered specifically for the 4.4 TDV8 engine architecture and the layout in the Range Rover L322 and L405. This includes:

• shaping profiled for specific routing in the engine bay,
• maintaining the appropriate internal diameter for efficient fluid flow,
• adaptation of the ends to factory clamps and connectors. Such fitment reduces the need for modifications during installation, facilitates correct hose positioning, and decreases the risk of micro-leaks at the connections. For the user, this means more predictable cooling system behavior and easier diagnostics in the future.

Benefits of using an original coolant hose

Using an original coolant hose in the 4.4 TDV8 engine brings a number of practical operational benefits:

• Factory fitment – the hose is designed for a specific model and power unit, which translates into proper mating with ports, brackets, and covers.
• Stable flow parameters – the preserved internal geometry supports uniform coolant circulation throughout the system.
• Easier service installation – no need to adapt universal replacements shortens work time and reduces the risk of installation errors.
• Consistency with other cooling system elements – the hose works with factory components, which makes it easier to keep the system in a uniform specification.

Characteristics of the used OEM part

The offered coolant hose is an original Land Rover component sourced from dismantling, which means it has been previously used in a vehicle. Such components are frequently chosen by service centers specializing in the brand because they allow for maintaining the factory system specification while reducing repair costs compared to purchasing a new part. Before installation, it is recommended to perform a standard inspection of the rubber or plastic surface condition, flexibility, any signs of chafing, and the clamp seats. A properly selected and checked coolant hose is an important element of preventive maintenance against engine overheating, especially in high-power diesel units such as the 4.4 TDV8.

Support in selection and related technical content

In the case of cooling systems in modern vehicles, it is also worth paying attention to other components responsible for heat dissipation from the engine bay, such as the radiator, thermostat, water pump, or additional return lines. A consistent service approach allows for reducing the risk of recurring faults and ensuring stable operating conditions for the power unit. 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 lines, return pipes, or flexible connecting sections, check the available parts in the Land Rover cooling system pipes and hoses category. When working on the power unit's operating temperature, it is also worth paying attention to the efficiency of the air conditioning system, which affects driving comfort and the thermal load of the engine bay. More practical tips on selecting used air conditioning system components can be found in the article No cooling in the car: an original used A/C compressor as a proven alternative to expensive new parts.