BMW X3 Series E83 N46 2.0i Petrol Hose For Engine Inlet Pipe Line 3400421

BMW X3 Series E83 N46 2.0i Petrol Hose For Engine Inlet Pipe Line is an original fuel system component designed for precise fuel delivery in the N46 engine. Thanks to its factory geometry and perfect fit for this specific powertrain, it ensures stable operation of the injection system and predictable vehicle performance. It is a practical solution for users who want to maintain consistency with the original BMW design and keep their car in good technical condition.

Specifications and technical data

• SKU: 3400421
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3400421
• Substitutable numbers: 64213400421, 3400421
• Fuel type: Petrol
• Category: Clamps & Hardware

Purpose and function in the fuel system

The presented fuel line is designed to work with the N46 petrol engine in the BMW X3 E83 2.0i model. Its task is to safely route fuel between fuel system components, while maintaining proper sealing and resistance to operating pressure. The design of the line is adapted to the characteristics of the petrol unit, which reduces the risk of leaks, pressure drops, or improper injection operation.

A properly selected fuel hose is important not only for reliability but also for the stability of combustion parameters. Maintaining the correct fuel flow promotes smooth engine operation, thereby facilitating diagnostics and servicing of the entire system.

Construction, fitment, and installation

The component belongs to the Clamps and mounting parts group, which means its geometry and mounting points are prepared for factory brackets and routing in the BMW X3 E83 engine bay. As a result, installation is orderly, without the need for system modifications or the use of makeshift fasteners.

In practice, this means that:

• the line is routed according to the original path in the engine bay,
• the proper distance from heating and moving parts is maintained,
• it is easier to keep the installation tidy and maintain access to other components during service.

Thanks to the factory nature of the part, consistency with BMW service documentation can be maintained, which facilitates work for workshops and reduces the risk of installation errors.

Benefits of using an original fuel line

Using a fuel line dedicated to the N46 petrol unit in the BMW X3 E83 brings a number of practical benefits. The most important of these are:

• compatibility with the petrol system – the material and construction of the line are adapted to work with petrol, which promotes durability and resistance to operating conditions,
• factory fit for a specific model – no need to adapt universal solutions,
• orderly installation within the existing system,
• easier inspection of the line's condition during periodic maintenance.

This solution is particularly beneficial for users who want to keep the car in a configuration close to factory specifications while looking for a reasonable compromise between quality and repair costs.

Part condition and service application

The offered fuel line is a used component, which in practice allows for an economical repair of the fuel system while maintaining original BMW specifications. Such components work well both for typical replacement of worn-out sections of the fuel system and for larger service tasks related to the N46 engine.

Choosing a used OEM component is often preferred by owners of premium vehicles who want to maintain factory design solutions while avoiding the high costs of new parts.

Further upgrades and related components

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

When planning your service budget, it is worth considering a wider use of used OEM parts. You can find more about the economic aspects of this approach in the article: Smart Skoda servicing – why second-hand parts are the best choice for your wallet, which discusses the advantages of using original components from the secondary market in the context of repair costs and quality.

If you are interested in the long-term maintenance of older premium models, including BMW, in good technical condition, the following material may also be helpful: The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years, describing practical upgrade scenarios using used components.