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

Ford Transit Custom Mk2 2.0 EcoBlue Diesel Air Intake Pipe Hose is a component from the Lines, hoses and pipes group, designed for the air intake system in EcoBlue diesel engines. It is responsible for stable air delivery to the engine, which promotes smooth operation of the power unit and proper interaction with auxiliary equipment. Using this OEM component from Ford allows you to maintain factory flow characteristics without the need for aftermarket replacements with uncertain parameters.

Specifications and technical data

• SKU: GK21-9R504-AG-3
• Mark: Ford
• Condition: Used
• OEM Part Number: GK21-9R504-AG
• Substitutable numbers: GK21-9R504-AG, GK219R504AG, GK21-9F805-AA, GK219F805AA
• Fuel type: Diesel
• Color: Amethystgrau Metallic - A09
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The air intake pipe in the Ford Transit Custom Mk2 2.0 EcoBlue Diesel operates in a demanding environment, directing air toward the diesel engine. The properly selected cross-section and geometry of the hose help maintain stable pressure and reduce flow drops, which is important for engine smoothness, throttle response, and the correct operation of control systems. An element from this group is particularly important in modern diesel engines, where precise air and fuel metering affects exhaust emissions, fuel consumption, and the durability of auxiliary components. Using an original intake hose reduces the risk of leaks, improper fitment, or uncontrolled vibrations.

Construction, material and color

The air intake pipe belongs to the Lines, hoses and pipes category, which means it has been designed to work under variable pressure and temperature loads. The construction of the hose is adapted to the specifics of a diesel engine, where both elevated temperatures and vibrations resulting from the operation of the power unit occur. The finish in Amethystgrau Metallic - A09 allows for aesthetic integration of the component into the engine bay, while also facilitating identification of the hose during inspections and service work. The color scheme helps maintain clarity in the auxiliary area, which is helpful when diagnosing potential leaks or mechanical damage.

Compatibility with the diesel engine

The air intake pipe has been prepared for use with a power unit fueled by Diesel, which involves different requirements than in the case of gasoline engines. The hose must maintain tightness at a higher compression ratio and ensure adequate airflow within the load range typical for EcoBlue engines. The original origin from the Ford brand helps maintain compatibility with the factory mounting system, brackets, and adjacent components. As a result, installation is predictable, without the need to modify other elements of the intake system.

Condition, origin and advantages of using OEM parts

The offered air intake pipe is a used component, which allows you to combine an attractive purchase cost with the preservation of the manufacturer's original specifications. OEM parts from dismantling often represent a beneficial alternative to new replacements, especially in the case of molded components, where precision of workmanship and fit are crucial for the tightness of the system. Using an original air intake hose in the Ford Transit Custom Mk2 2.0 EcoBlue Diesel helps to:

• maintain the factory air flow characteristics in the diesel engine,
• minimize the risk of leaks and improper fitment,
• reduce installation time thanks to matching the serial mounting points,
• maintain a consistent engine bay appearance thanks to the appropriate color.

Intake system expansion and related parts

In the case of service work within the intake system, it is also worth paying attention to other elements from the lines, hoses and pipes group – especially where flexible connections, clamps, or areas exposed to vibrations occur. A consistent approach to replacing components in one area allows for reducing vehicle downtime and lowering the risk of subsequent leaks. If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other elements from the same group, such as intake hoses, vacuum hoses, or cooling system pipes, check the available parts in the Ford lines, hoses and pipes category. For users interested in deepening their knowledge on the selection of auxiliary equipment for modern turbocharged units, including compatibility issues, OEM numbers, and practical installation checklists, the Global Parts guide may be helpful: BMW B58 code – checklist before buying a turbocharger and intercooler for the BMW 3 Series (G20). Although it concerns a different brand, it well illustrates the approach to verifying turbocharging and intake system elements, which can also be applied to servicing commercial vehicles.