Ford Transit Custom Mk2 Air Intake Pipe Hose Diesel 2.0 EcoBlue GK21-9R504-AF

Ford Transit Custom Mk2 2.0 EcoBlue Air Intake Hose is an original intake system component designed for diesel engines. Designed by Ford, it ensures proper air routing to the engine unit, promoting stable diesel engine operation and reducing the risk of power loss.

Specifications and technical data

• SKU: GK21-9R504-AF
• Mark: Ford
• Condition: Used
• OEM Part Number: GK21-9R504-AF
• Substitutable numbers: GK21-9R504-AF, GK219R504AF, GK219R504AG, GK21-9R504-AG, 2824179, GK219R504AH, GK21-9R504-AH
• Fuel type: Diesel
• Part type: Hose
• Category: Hoses, Lines & Pipes

Application in the Diesel Engine Intake System

This air intake hose is part of the Hoses, Tubes, and Pipes category, responsible for the sealed and directed supply of air to the compression-ignition engine. In Diesel engines, proper airflow is crucial for efficient mixture combustion, stable turbocharger operation, and maintaining appropriate exhaust emission parameters.

A correctly selected intake hose helps to reduce air turbulence, minimizes pressure drops in the system, and supports even loading of engine accessories. This ensures predictable operation of the intake system, leading to better throttle response and consistent performance in daily use.

Benefits of Using an Original Intake Hose

For modern diesel engines, such as the 2.0 EcoBlue unit, the geometry and flexibility of the intake hose are precisely matched to the rest of the system. Using an original Ford part allows you to:

• maintain proper intake system sealing,
• preserve the factory air routing to the engine,
• reduce the risk of leaks and unwanted air ingress,
• limit the possibility of errors related to the mass airflow sensor or boost pressure sensors.

For the user, this translates to more predictable operation, easier diagnostics, and the ability to maintain engine unit performance close to factory levels. Selecting a hose that matches the diesel engine's design is particularly important for intensive use of a commercial vehicle.

Condition, Fitment, and Installation

This part comes from the Ford range and is intended for installation in the Transit Custom Mk2 model with a diesel engine. As a used part, the hose offers a practical solution for operational repairs where maintaining the original system geometry while optimizing service costs is important.

In most cases, installing the air intake hose involves correctly seating it on the spigots and securing it with factory clamps or connectors. When replacing it, it is recommended to:

• check the condition of adjacent intake system components,
• inspect sealing surfaces for dirt and damage,
• verify the correct positioning of the hose relative to other engine bay components.

This approach helps to avoid stress, abrasion, and potential future leaks, which is especially important in commercial vehicles operating under constant load.

Assistance with Selection and Additional Technical Information

The diesel engine air intake hose has a dedicated OEM part number and associated replacement numbers, which facilitates precise component identification in service catalogs. If necessary, it is advisable to compare the shape and mounting points with the part currently installed in the vehicle to confirm full compatibility.

If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other parts from the same group, such as flexible intake sections, rigid pipes, or hoses connecting the air filter to the turbocharger, check the available parts in the Ford Hoses, Tubes, and Pipes category.

Practical Additional Materials

When performing service work on the powertrain, it is also worth paying attention to the condition of the gearbox and its accessories, especially in intensively used commercial vehicles. For users interested in a conscious approach to purchasing drivetrain components, the following guide may be helpful: Gearbox: Manual, Automatic, or DSG – Common Faults and a Guide to Buying a Used Gearbox.