BMW 1 2 F20 F22 125i 220i 228i Petrol N20 N55 Complete Fuel Tank 7294604

BMW 1 2 F20 F22 125i 220i 228i Petrol N20 N55 Complete Fuel Tank is an original fuel system component designed for 125i, 220i, and 228i models equipped with N20 and N55 engines. Thanks to its factory-spec design, it ensures proper integration with the fuel system, maintaining safety, leak-tightness, and stable engine performance. This is the ideal solution for users looking to restore full fuel system efficiency while adhering to BMW's factory specifications.

Specifications and technical data

• SKU: 7294604-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7294604
• Substitutable numbers: 16117294604, 7294604, 16117243975, 7243975, 16117297778, 7297778, 16117414482, 7414482, BG
• Weight: 150
• Fuel type: Petrol
• Category: Fuel Tanks & Filler Necks

Purpose and compatibility

The presented fuel tank is designed for BMW 1 Series F20 and 2 Series F22 vehicles with N20 and N55 petrol engines in 125i, 220i, and 228i versions. This means that the geometry, mounting points, and fuel line connections are perfectly matched to the factory chassis architecture and fuel system of these models, facilitating installation and minimizing the need for modifications.

By maintaining the original design, the tank works seamlessly with factory fuel lines, ventilation systems, and fuel supply accessories, which translates into stable fuel pressure and correct engine operation across the full load range.

Construction and function in the fuel system

The tank plays a key role in storing petrol and ensuring optimal operating conditions for the fuel pump and associated components. The construction is adapted for use with petrol, taking into account the necessary material resistance to chemical agents and temperature fluctuations. Properly designed chambers and baffles reduce fuel sloshing, which improves supply stability during dynamic driving.

The element is manufactured as a component of the Fuel tanks and filler pipes system, meaning it is compatible with the factory filler neck, ventilation, and vapor recovery system. A correctly selected tank reduces the risk of leaks, ventilation issues, and pressure-related errors in the fuel system.

Benefits of using an original tank

Choosing an original fuel tank for the BMW F20/F22 offers a number of practical benefits:

• preservation of factory geometry and mounting points,
• compatibility with fuel system accessories and vehicle installation,
• reduced risk of leaks and ventilation problems,
• stable operating conditions for the fuel pump and injectors,
• easier diagnostics and service thanks to compliance with BMW documentation.

The product comes from the original BMW parts segment, which makes selection based on OEM numbers or interchangeable part numbers available in the technical specification easier. This is particularly important for modern N20 and N55 units, where the fuel system operates under high performance requirements.

Condition, origin, and installation aspects

The offered fuel tank is a used part, which allows for an economical repair of the fuel system while maintaining the original BMW design. Before installation, a standard inspection of leak-tightness, the condition of the connections, and mounting sockets is recommended, as well as the use of new seals in accordance with the manufacturer's service procedures.

Due to its weight and dimensions, the tank is best installed on a lift, following safety protocols for working with fuel systems. A correctly installed tank contributes to trouble-free fuel system operation and limits the risk of faults related to leaks or improper mounting.

Selection, diagnostics, and technical knowledge

To better understand the role of the tank in the entire fuel system and to perform diagnostics correctly, it is worth consulting specialist materials. A practical discussion on the operation of the fuel system, injectors, pumps, and the tank, along with tips on selection by OEM number and maintenance, can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you want to deepen your knowledge on making informed choices regarding aftermarket parts and avoid poor purchases, the guide how to professionally select used car parts considering OEM compatibility will be helpful.

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other components from the same group, such as additional tanks, lines, or filler pipes, check out the available parts in the category BMW fuel tanks and filler pipes.