Land Rover Discovery 4 L319 Gearbox Oil Cooling Pipe Hose Line CH22-7R081-AC

Land Rover Discovery 4 L319 Gearbox Oil Cooling Hoses CH22-7R081-AC is a drivetrain component from the Oil Coolers and Hoses category, specifically designed for the automatic gearbox in the Discovery 4. It is responsible for stable heat dissipation from the transmission fluid, which translates to more predictable gearbox operation and reduced risk of overheating. This is a solution for users who want to maintain the efficiency of the oil cooling system at the appropriate level, utilizing the original Land Rover architecture.

Specifications and technical data

• SKU: LR037217
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR037217
• Substitutable numbers: LR037217, CH227R081AC, CH22-7R081-AC
• Part type: Oil Cooler Hose
• Category: Engine Oil Coolers & Lines

Function and Role of Gearbox Oil Cooling Hoses

The gearbox oil cooling hoses in the Discovery 4 L319 create a connection between the gearbox and the oil cooler, ensuring the circulation of the working medium under varying load conditions. Maintaining the correct transmission fluid temperature is crucial for:

• stable operation of the automatic gearbox both off-road and on the highway,
• reducing wear on friction elements and seals,
• maintaining proper lubrication parameters across the full temperature range,
• limiting the risk of failures resulting from oil overheating.

Thanks to their adaptation to the factory oil cooling system in the Discovery 4, the hoses retain their original routing and mounting points, which facilitates installation and servicing.

Compatibility and Fit for Land Rover Discovery 4 L319

Land Rover Discovery 4 L319 Gearbox Oil Cooling Hoses CH22-7R081-AC have been developed with the specific body and drivetrain geometry of this model in mind. This means that:

• compliance with the factory routing of hoses in the engine bay and undercarriage is maintained,
• connection points match the original gearbox and oil cooler spigots,
• no modifications to other oil cooling system components are required.

Such a precise fit allows for maintaining the integrity of the entire drivetrain, which is particularly important in vehicles used in demanding off-road conditions or with additional loads, such as towing trailers.

Characteristics of a Used Part

The offered part comes from the used Land Rover parts segment, allowing for an economical repair of the gearbox oil cooling system while maintaining the original design. A used component is a good solution when:

• factory hoses have suffered corrosion, mechanical damage, or leaks,
• a quick replacement is necessary without waiting for aftermarket replacements to be manufactured,
• you want to preserve the original drivetrain specification.

Choosing such a solution allows for maintaining consistency with the original Land Rover design, which is important for both durability and predictable gearbox operation.

Importance of an Efficient Gearbox Oil Cooling System

Efficient gearbox oil cooling hoses are an important element in protecting the automatic transmission from overheating, especially in the heavy operating conditions typical for the Discovery 4. In practice, this translates to:

• more stable gear changes under high loads,
• reduced risk of transmission fluid quality degradation,
• extended potential lifespan of the gearbox.

If you want to better understand the impact of the cooling system on the durability of the powertrain and transmission, it is worth reading the guide on our blog – it discusses overheating and the role of oil coolers in detail: Engine Cooling System – Overheating, Repair, and Used Coolers.

Related Items from the Land Rover Oil Coolers and Hoses Category

When upgrading or repairing the oil cooling system in a Discovery 4, it is often worth considering other components from the same group, such as additional hoses, connectors, or elements working with the oil cooler, to restore full efficiency of the entire circuit in one service operation; if you are planning a broader range of work on the oil cooling system in your vehicle of this brand, check the available parts in the Land Rover Oil Coolers and Hoses category.