BMW 3 Series E90 E91 E92 E93 LCI N47N Fuel Feed Line Pipe Hose 8514451

BMW E90 E91 E92 E93 N47N Fuel Hose Line Pipe is an original part from the Hoses, Pipes, and Lines category, designed for the fuel supply system in BMW 3 Series models with the N47N engine. This used OEM component ensures proper fuel delivery while maintaining factory geometry and fitment in the engine bay.

Specifications and technical data

• SKU: 8514451
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8514451
• Substitutable numbers: 13538514451, 8514451, 13534738570, 4738570, 13537810783, 7810783
• Category: Hoses, Lines & Pipes

Intended Use and Function in the Fuel System

This fuel line is responsible for the safe and stable delivery of fuel within the supply system of the N47N diesel engine in E90, E91, E92, and E93 body styles. The component's design is adapted to the pressures and temperatures typical of modern BMW units, ensuring correct operating parameters for the injection system.

By maintaining the factory shape and diameter, the line minimizes the risk of pressure drops, leaks, and improper routing in the engine bay. This is particularly important when servicing N47N units, where correct fuel line routing affects the overall smoothness and reliability of the entire system.

Original Origin and Replacement Numbers

The line originates from the BMW OE line, signifying compliance with the manufacturer's factory standards regarding materials, dimensional tolerances, and production processes. The part has an assigned OEM part number and a set of interchangeable numbers, allowing for precise verification against the BMW catalog or service software.

The presence of reference numbers facilitates the selection of the correct line for a specific engine and body configuration, and enables easy identification when comparing with other variants of fuel lines used in the 3 Series.

Condition, Verification, and Installation Recommendations

The item is used, meaning it comes from a dismantled vehicle but retains the functionality required for further operation. Before reinstallation, this type of line should be visually inspected for any mechanical damage, signs of corrosion on connectors, and leaks at connection points.

During installation, it is recommended to:

• thoroughly clean the sockets and spigots,
• check the condition of seals and quick-connect fittings,
• route the line according to the factory path, maintaining clearance from hot components,
• check the system for leaks after the initial engine start.

This approach helps maintain stable fuel system operation and reduces the risk of leaks or air ingress.

Benefits of Using an Original BMW Line

Using an original BMW fuel line in place of a worn or non-factory part offers several practical benefits:

• guaranteed fitment for the N47N engine and E90/E91/E92/E93 body styles,
• maintenance of the factory routing in the engine bay,
• compatibility with original connectors and mounting brackets,
• easier diagnostics and servicing due to compliance with BMW documentation.

For workshops and private users, this translates to more efficient installation, a lower risk of operational issues, and better predictability of fuel system behavior in the long term.

Selection of BMW Lines, Hoses, and Pipes and Additional Information

If you need other items from the Hoses, Pipes, and Lines category dedicated to this brand, check the available BMW Hoses, Pipes, and Lines to select components that fit your specific model and engine version.

When choosing between new and used fuel system components, it is worth analyzing the cost-to-durability and quality ratio. A comparison prepared in the article New or Used? Comparing Costs and Quality of Car Parts, which discusses the practical differences between used OEM parts and new aftermarket alternatives, may be helpful.