Mercedes W211 Diesel Fuel Tank Filler Neck Pipe Hose A2114703720

Mercedes W211 Diesel Fuel Tank Filler Neck Pipe Hose is an original fuel system component designed for diesel engine models. It ensures safe and stable fuel delivery from the filler neck to the tank, which is crucial for trouble-free operation of the fuel system and daily driving comfort. This used OEM component is a sensible choice for drivers looking for a proven solution structurally matched to the Mercedes W211.

Specifications and technical data

• SKU: A2114703720-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2114703720
• Substitutable numbers: A2114703720, A 211 470 37 20
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The fuel tank filler neck pipe hose in the Mercedes W211 is responsible for the sealed and controlled delivery of diesel fuel to the tank. In Diesel engine vehicles, proper fuel flow during refueling reduces the risk of leaks, airlocks, and issues with tank venting. This element works in conjunction with other fuel system components, creating a cohesive, factory-standard system matched to the body geometry and chassis construction.

Benefits of using an original fuel filler pipe

Using an original fuel filler pipe in the Mercedes W211 allows you to maintain factory routing, which facilitates installation and maintenance. The properly selected shape and cross-sectional diameter support:

• stable refueling without fuel backing up in the filler neck,
• maintaining system tightness during temperature and load fluctuations,
• proper cooperation with the filler cap and body mounts.

As a result, you reduce the risk of unwanted fuel odors around the vehicle, as well as potential damage to other fuel system components resulting from leaks.

Part selection and compatibility

The fuel tank filler neck pipe hose for the Mercedes W211 should be selected based on vehicle data and manufacturer markings. In practice, this means verifying compatibility with the specific body version and diesel engine to ensure correct mounting points and pipe routing. The product has dedicated OEM markings and interchangeable numbers, which facilitates precise identification and minimizes the risk of purchasing an incompatible part.

To better understand the role of this component in the entire fuel system, it is worth reading the guide describing the diagnostics and operation of the fuel system – it discusses, among other things, injectors, pumps, and the fuel tank in detail. You can find practical tips in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Characteristics of the used component

The offered fuel filler pipe is a used part, sourced from a dismantled Mercedes vehicle. Such components retain their factory geometry and mounting method, which translates into proper fitment with the body and other fuel system elements. Choosing a used pipe is often a cost-effective solution for maintenance repairs, especially when you want to maintain the original design specifications.

Support for Mercedes fuel system expansion

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 supply lines, filler neck elements, or connection fragments near the tank, check the available parts in the category Mercedes fuel tanks and filler pipes.

Summary

Mercedes W211 Diesel Fuel Tank Filler Neck Pipe Hose is a practical solution for users of diesel-powered cars who want to restore the proper operation of the fuel system after damage or corrosion of the original pipe. A properly selected, original element from the Fuel tanks and filler pipes category helps maintain tightness, refueling safety, and compliance with the vehicle's factory design, which is important for both durability and daily operating comfort.