Intercooler Pressure Hose Mini R50 One D Diesel W17 Air Pipe Assy 7788763

Intercooler Pressure Hose Mini R50 One D Diesel W17 Air Pipe Assy is an original boost system hose designed for Mini R50 One D diesel engines. This component belongs to the Hoses, pipes and tubes group and is designed to ensure stable routing of compressed air between the intercooler and other intake system components in diesel-powered vehicles.

Specifications and technical data

• SKU: 7788763-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7788763
• Substitutable numbers: 11617788763, 7788763, BG
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the boost system

The presented intercooler pressure hose is responsible for the sealed and controlled routing of charge air in a Diesel engine. A correctly selected and fitted hose limits pressure drops, supports stable turbocharging operation, and helps maintain the appropriate dynamics of the power unit across the entire RPM range.

As a component from the Hoses, pipes and tubes group dedicated to the intake system, this part is crucial for maintaining proper airflow characteristics, which translates to the smoothness of operation, throttle response, and consistent performance of the diesel engine.

Original origin and fitment for BMW / Mini

The product comes from the BMW parts line, meaning it has been designed for factory fitment to the Mini R50 One D construction. Original origin ensures:

• geometry consistent with factory hose routing in the engine bay,
• appropriate connection diameters for the intercooler and intake system,
• compatibility with mountings and brackets provided by the vehicle manufacturer.

This ensures a tidy installation without the need for modifications or makeshift solutions, which is particularly important for components operating under pressure.

Performance characteristics of the intercooler hose

The hose has been constructed for operation in conditions typical for diesel engines – with variable boost pressure and elevated air temperature. The appropriately selected design supports:

• maintaining the boost system's seal across a wide range of loads,
• reducing the risk of leaks that could cause power loss or the engine entering limp mode,
• stable cooperation with the intercooler and other intake components.

This technical solution is particularly important in vehicles subjected to intensive use, where the boost system operates under increased load and requires predictable behavior from all air hoses.

Condition, service application, and benefits of replacement

The offered component is a used part, making it an attractive option for servicing the boost system in older Mini R50 One D models. Replacing a worn or leaking hose with a functional component allows for:

• limiting boost pressure losses and improving engine flexibility,
• reducing the risk of errors related to turbocharging operation,
• restoring predictable power unit behavior in everyday use.

For workshops specializing in BMW and Mini vehicle service, this is a practical service solution that allows for efficient repair of the intake system while maintaining the factory hose routing concept.

Intake system expansion and related components

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as air hoses, vacuum hoses, or pipes supplying air to the intercooler, check the available parts in the BMW Hoses, pipes and tubes category.

For users interested in the broader context of diesel engine operation and the impact of boost system components on engine performance and smoothness, an article describing the refresh of the popular V6 CDI unit may be helpful – you can find it here: Second life for the Mercedes OM642 engine – how injectors and turbo restore power to the 3.0 V6 CDI.