BMW E60 E61 E63 E65 Petrol Fuel Injection Valve N62 N62N 7525721

BMW E60 E61 E63 E65 N62 N62N Injector Injectors is an original BMW gasoline injector nozzle, designed for installation in the rear part of the fuel system for N62 and N62N engines. The component comes from disassembly, which allows combining factory quality with an attractive price, while maintaining the proper operating parameters of the power unit.

Specifications and technical data

• SKU: 7525721
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7525721
• Substitutable numbers: 7525721, 13647525721, 7523423, 13647523423
• Location on the vehicle: Rear
• Fuel type: Petrol
• Category: Fuel Injectors

Application and Technical Characteristics

The presented injector belongs to the category of BMW injector nozzles and is intended for N62 and N62N series gasoline engines used in higher-class BMW models such as E60, E61, E63, or E65. The design of the component is adapted for precise fuel dosing in the gasoline fuel system, which is crucial for the stable operation of the V8 unit.

Its placement in the rear part of the injection system requires maintaining the correct fuel spray geometry and resistance to operating temperature and pressure. A precise nozzle ensures proper gasoline atomization, which translates into even combustion in the cylinders and reduced engine vibrations.

Benefits of Using an Original Injector Nozzle

Using an original injector nozzle in the N62/N62N engine allows maintaining operating parameters in line with the manufacturer's specifications. In practice, this means:

• stable idle operation and reduced misfires,
• correct gasoline dosing across the full load range,
• better throttle response and predictable power unit behavior,
• reduced risk of combustion chamber overheating due to incorrect mixture composition.

By maintaining factory fuel flow parameters, the injector helps to keep exhaust emissions at the appropriate level and supports proper cooperation with the engine control electronics.

Component Condition and Installation Aspects

The injector is a used component, originating from an original BMW fuel system. This type of part, with proper pre-installation diagnostics, is a sensible choice for users seeking a compromise between repair cost and maintaining factory specifications. The original design facilitates installation in place of the factory component, without the need for modifications to the fuel or electrical system.

Before installation, it is recommended to:

• check the fuel system for leaks after installation,
• verify injector operating parameters using computer diagnostics,
• inspect other system components (pump, rail, lines) to avoid secondary failures.

Optimizing BMW Gasoline Engine Performance

N62 and N62N engines are sensitive to fuel supply quality, so a functional injector directly impacts the smoothness and durability of the unit. Using the correct injector nozzle:

• reduces the risk of excessive wear on pistons, valves, and catalytic converters,
• helps maintain proper combustion at various operating temperatures,
• supports economical fuel consumption in daily use.

For users who want to comprehensively care for their fuel system, it is a good solution to simultaneously check all injectors and engine operating parameters after replacing the component.

Related Products and Technical Materials

If you are looking for other BMW injector nozzles compatible with different models of this brand, check out the BMW injector nozzles available in our store to find a complete solution for your fuel system.

Although the described component is for a gasoline engine, many fuel system diagnostics principles are similar to diesel units. It is worth familiarizing yourself with the guide material diesel injector faults – how to recognize them and what are the consequences of neglecting them to better understand the symptoms of faulty injector operation and the importance of a quick reaction to the first signs of problems.

For those interested in a broader perspective on the used parts market, a guide to popular used components may also be useful – you can find it in the article best used car parts – a guide to original components, which helps to consciously choose proven parts for your car.