BMW 3 5 7 X3 Series 1 E46 E60 E61 E65 E83 M54 Fuel Injector Rail With Injectors

The BMW fuel rail with injectors for Series 3, 5, 7, and X3 with M54 engine is an original fuel system component designed for many popular BMW models. The complete assembly of the fuel rail and gasoline injectors ensures component consistency and simplifies fuel injection system servicing.

Specifications and technical data

• SKU: 7541452-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7541452
• Substitutable numbers: 13537541452, 7541452, 13531437442, 1437442, 7541453, 13537546244, 7546244, 13641427240, 1427240
• Category: Fuel Injectors

Application in BMW models with M54 engine

The presented fuel rail with injectors for BMW is intended for Series 3, 5, 7, and X3 vehicles, including the E46, E60, E61, E65, and E83 generations equipped with the M54 engine. Using a complete assembly from a single disassembly allows for consistent injector operating characteristics within a single cylinder bank, promoting stable engine operation.

Construction and technical characteristics

The fuel rail acts as a fuel distributor to individual cylinders, and the integrated injectors are responsible for precise fuel metering into the intake manifold. The use of an original BMW component means:

• correct geometric fit to the cylinder head and intake manifold of the M54 engine,
• maintenance of factory fuel flow parameters for this engine,
• compatibility with the factory engine control unit and existing wiring harness.

An original fuel rail with a set of injectors reduces the risk of leaks, incorrect spray patterns, or performance differences between individual cylinders.

Benefits of using a complete fuel rail with injectors

Replacing the entire fuel rail and injector assembly instead of individual components is particularly beneficial for engines that have been in use for a long time. The main advantages of this solution include:

• consistent operating characteristics of all injectors – reducing fuel delivery differences between cylinders,
• simplified installation – removing and installing one complete assembly instead of several separate parts,
• better idle stability and improved engine running smoothness with a properly functioning ignition and intake system,
• maintenance of factory combustion parameters, which helps maintain appropriate exhaust emissions and fuel consumption.

Condition, origin, and fitment

This part comes from a dismantled BMW vehicle and is offered as a used fuel rail with injectors. Original BMW OE origin signifies compliance with the manufacturer's factory standards in terms of design and materials. Before installation, standard service procedures are recommended: checking for leaks, the condition of connectors and seals, and verifying correct injector operation on the vehicle or diagnostic bench.

Installation and diagnostic tips

When replacing the fuel rail with injectors, it is worth paying attention to several technical aspects:

• thorough cleaning of the injector seats in the cylinder head before installing the injectors,
• use of new seals for injectors and fuel line connectors according to service recommendations,
• checking fuel pressure after installation and inspecting for any leaks,
• engine control unit adaptation (if required by the service procedure for the specific model).

In case of fuel system problems, such as rough engine running, increased fuel consumption, or smoking, it is advisable to expand diagnostics to include injector operation analysis. The article describing the symptoms and consequences of high-pressure injector failures may be helpful: diesel injector failures – symptoms, consequences, and diagnostics. Although it concerns diesel engines, many diagnostic and service principles remain similar.

Other BMW injector nozzles

If you are looking for other BMW injector nozzles compatible with different models or engine versions, check out our dedicated category: BMW injector nozzles. This will allow you to easily compare available configurations and select the appropriate part for your specific chassis number and engine unit.