Mercedes-Benz C-Class W203 Fuel Tank Filler Neck Pipe Hose A2034701620

Mercedes-Benz C-Class W203 Fuel Tank Filler Neck Pipe Hose is a fuel system component responsible for a secure and leak-proof connection between the filler neck and the tank installation. Thanks to its factory-designed geometry intended for Mercedes-Benz C-Class W203 models, it ensures stable fuel routing and proper mounting within the chassis, which translates into trouble-free vehicle operation.

Specifications and technical data

• SKU: A2034701620
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2034701620
• Substitutable numbers: A2034701620, A 203 470 16 20, A2034701520, A 203 470 15 20, AS
• Category: Clamps & Hardware

Purpose and function in the fuel system

The fuel tank filler neck pipe hose in the Mercedes-Benz C-Class W203 is responsible for transporting fuel from the filler neck to the tank, while maintaining proper tightness and resistance to chassis vibrations. A correctly selected component minimizes the risk of leaks, air ingress, and improper tank venting, which is important for both safety and refueling comfort.

The original design of the hose is matched to the geometry of the W203 chassis, ensuring the correct routing of the hose, appropriate bending radii, and stable support at factory mounting points. This helps avoid material stress and unwanted rubbing against body components.

Technical category: Clamps and mounting parts

The element belongs to the Clamps and mounting parts group, which emphasizes its role as a component responsible for the stable attachment and routing of the fuel filler hose. In practice, this means that the pipe works with brackets, clamps, and body mounts to create a cohesive assembly system that:

• maintains the hose in the correct position relative to the tank and filler,
• limits the transfer of vibrations and loads to the connections,
• ensures repeatable, factory-standard fitment with body components.

As a result, the installation process is predictable, and the entire system maintains parameters similar to factory solutions.

Product characteristics and application benefits

As a part sourced from a dismantled Mercedes vehicle, the fuel filler pipe retains its original design and fitment for the specific model platform. This is a beneficial solution for users who want to maintain the integrity of the fuel system according to factory specifications, without the need for aftermarket replacements with uncertain fitment.

Key benefits of using this component include:

• preservation of the factory geometry of the filler hose routing,
• compatibility with original mounting points and clamps,
• reduction of the risk of leaks in the filler and tank area,
• easier diagnostics and servicing of the fuel system due to compliance with manufacturer documentation.

Condition, selection, and mounting aspects

The product is offered as a used original part, which allows for an economical repair of the fuel system while maintaining a design consistent with the factory solution. Before installation, a standard visual inspection for any signs of wear is recommended to adapt the installation method to the specific vehicle and its technical condition.

The selection of the fuel filler pipe should always be based on the OEM number and vehicle data (model, generation, body type) to ensure full compatibility with the tank and filler system. In practice, this facilitates communication with the store's technical department and speeds up the compatibility verification process.

If you want to streamline the process of selecting parts by OEM number or vehicle data, a practical guide may be helpful: how to choose the right car part by VIN and OEM number, where you will find a step-by-step procedure.

Expanding the mounting system in a Mercedes

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other elements from the same group, such as brackets, clamps, or additional hose mounts, check out the available parts in the Mercedes Clamps and mounting parts category.

For users interested in the broader use of dismantled parts in modernization and tuning projects, an article describing the practical applications of used components in modifications may serve as inspiration: Emotions and design – visual and mechanical tuning of a Seat using dismantled components.

Summary

Mercedes-Benz C-Class W203 Fuel Tank Filler Neck Pipe Hose is a technically matched fuel system element, belonging to the Clamps and mounting parts group, designed for use in the construction of the Mercedes-Benz C-Class W203. Choosing an original component from a dismantled vehicle allows for maintaining the factory routing geometry, proper cooperation with mounting brackets, and predictable system behavior during operation, making it a rational solution for vehicle repairs and renovations.