Power Steering Pump BMW E90 E91 E92 E93 335i Petrol N55 Oil Unit 6779244

Power Steering Pump BMW E90 E91 E92 E93 335i Petrol N55 Oil Unit is an original steering system component from the Power steering pumps group, designed for vehicles with the N55 petrol engine. This used OEM part allows for maintaining the factory operating characteristics of the system, ensuring precise, predictable, and comfortable vehicle handling.

Specifications and technical data

• SKU: 6779244
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6779244
• Substitutable numbers: 32416779244, 6779244, 32414044439, 4044439, 32414042624, 4042624
• Fuel type: Petrol
• Category: Power Steering Pumps

Purpose and compatibility

The presented power steering pump is dedicated to BMW 3 Series E90/E91 LCI 335i models with the N55 petrol engine. Using a part from the same design family as the factory component allows for maintaining the correct pressure and performance parameters in the power steering system, which translates into stable vehicle behavior both in city traffic and at higher speeds.

Technical characteristics and role in the system

The power steering pump in this BMW model is responsible for generating the appropriate pressure in the hydraulic system, significantly reducing the force required to turn the steering wheel. A properly selected pump:

• ensures smooth steering system operation without jerking,
• maintains stable pressure across a wide range of petrol engine RPMs,
• reduces noise and vibrations transmitted to the steering column,
• supports precise vehicle handling during dynamic driving.

Thanks to the use of the original design, the pump maintains compatibility with the factory control parameters and steering system operating characteristics intended for the N55 unit.

Advantages of using an original used pump

Choosing a used OEM power steering pump for a BMW brings a number of practical technical and economic benefits. The most important include:

• Factory fitment – maintaining the original geometry of mounts and hydraulic connections, which facilitates installation and minimizes the risk of leaks.
• Consistency with the steering system and petrol engine – the pump is designed for the specific loads and operating characteristics of the N55 unit.
• Savings compared to a new component while maintaining high OEM manufacturing quality.
• Possibility of direct verification by part number and interchangeable numbers in the technical specification.

Professional selection and installation

To fully utilize the potential of this power steering pump, it is worth paying attention to several installation aspects:

• selection in accordance with the OEM part number and interchangeable numbers indicated in the specification,
• checking the condition of high-pressure and return hoses,
• proper system bleeding after installation,
• using power steering fluid with the parameters recommended by the vehicle manufacturer.

Such an approach reduces the risk of noise, pressure drops, or uneven steering system operation and allows for long-term, stable vehicle operation.

BMW power steering pumps – expansion and system modernization

If you are planning a comprehensive repair or modernization of the steering system area in your BMW and need other elements from the same group, such as hydraulic hoses, fluid reservoirs, or additional mounts, check the available parts in the BMW Power steering pumps category.

Technical support and expert knowledge

When selecting hydraulic components for petrol engines, specialized knowledge regarding the operation of supply systems and cooperating sub-assemblies can be helpful. Detailed information on diagnostics, selection by OEM numbers, and operating principles can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which organizes key issues related to the operation of modern petrol units.

If you are interested in a broader approach to the topic of original used components and want to consciously choose elements such as pumps, controllers, or mechanical sub-assemblies, it is worth reading the guide Best used car parts – a guide to the most frequently chosen original parts for popular car makes and models, which helps to optimally combine quality with a reasonable budget.