BMW E90 E91 E92 E93 LCI Fuel Feed Supply Line Pipe N57 325d 330d 7799992

The BMW E90 E91 E92 E93 N57 325d 330d Fuel Line is an original part from the Lines, Hoses, and Tubes group, designed for the fuel system of N57 diesel engines in 3 Series models. This used OEM component ensures a factory fit, stable fuel delivery, and maintains the engine's performance parameters according to the manufacturer's specifications.

Specifications and technical data

• SKU: 7799992
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7799992
• Substitutable numbers: 13537799992, 7799992
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The BMW Fuel Line for N57 Engine is responsible for the safe and leak-free routing of fuel between components of the fuel system in 325d and 330d models of the E90, E91, E92, and E93 series. The construction, compliant with factory BMW solutions, minimizes the risk of leaks, pressure drops, and injection disruptions, which translates to stable engine operation and proper performance.

The original routing of the line, correct bending radius, and matching connection ends facilitate installation in the engine bay without the need for modifications to other components. This is particularly important in modern diesel engines where the fuel system operates under high pressure and requires precisely selected components.

Benefits of Using an Original BMW Fuel Line

Using an original fuel line in the N57 engine offers a number of practical technical benefits:

• factory fit for the fuel system in 325d and 330d models of the E90–E93 series,
• maintains the fuel routing designed by BMW,
• compatibility with original connectors and mounting points in the engine bay,
• reduces the risk of leaks and fuel pressure issues,
• easier diagnostics and future servicing due to the use of an OEM part.

For workshops and users prioritizing technical correctness in repairs, a used but original fuel line is a sensible alternative to aftermarket parts with uncertain specifications.

Condition, Verification, and Fitment

This part is from a dismantled vehicle and is classified as used, which means that before reinstallation, it's advisable to inspect the condition of the working surfaces, connection sockets, and any signs of wear. For the fuel system, maintaining a leak-free seal is crucial, so installation is recommended in a workshop environment, using appropriate tools and following BMW service procedures.

To ensure proper fitment for a specific vehicle, it's recommended to verify compatibility using the OEM number or interchangeable numbers based on the manufacturer's catalog or service documentation. This approach minimizes the risk of selecting the wrong line and speeds up the repair process.

Support for Selection and System Expansion

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other parts from the same group, such as additional supply lines, flexible return hoses, or rigid guide tubes, check the available parts in the BMW Lines, Hoses, and Tubes category.

To better prepare for purchasing a used fuel line and other fuel system components, it's worth consulting practical tips on verifying numbers, assessing condition, and safe online transactions, as described in the guide Safe Purchase of Used Car Parts Online – A Step-by-Step Guide.