BMW 1 3 Series E81 E88 E87 E90 E91 E92 E93 N52 Power Steering Pump 4039954

BMW E81 E87 E90 E91 E92 E93 N52 Power Steering Pump is an original part from the Power Steering Pumps group, designed for the steering system in popular BMW models with the N52 engine. This used OEM part ensures a factory fit, correct operating pressure, and stable power steering system operation. It's a solution for users seeking a technically proven component while maintaining reasonable repair costs.

Specifications and technical data

• SKU: 4039954
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6769887
• Substitutable numbers: 32416769887, 6769887, 32414039954, 32414036733, 32414038714, 32414035682, 32414042171, 4039954, 4036733, 4038714, 4035682, 4042171
• Category: Power Steering Pumps

Purpose and Function in the Steering System

The power steering pump in the N52 engine is responsible for generating the correct pressure in the hydraulic system, which directly affects the effort required to turn the steering wheel. In BMW E81, E87, E90, E91, E92, and E93 models, using the correct pump is crucial for maintaining predictable handling characteristics, smooth return of the steering wheel to the neutral position, and stability during parking maneuvers.

By maintaining factory flow and pressure parameters, this power steering pump ensures consistent steering system operation with other components – the steering rack, hoses, and reservoir. A properly selected part minimizes the risk of noise, steering wheel vibrations, and uneven power steering operation at low and high engine speeds.

Benefits of Using an Original BMW Pump

Using an original power steering pump in a BMW with an N52 engine offers several practical benefits:

• factory fit for engine accessory mounts and drive,
• maintaining the manufacturer's intended power steering characteristics,
• proper compatibility with the existing hydraulic system,
• reducing the risk of leaks caused by ill-fitting aftermarket parts.

For the user, this translates to more predictable handling, comfortable city maneuvering, and less strain on other system components. Stable pump operation also leads to a lower risk of fluid overheating and accelerated wear of the steering rack.

Selection by Part Numbers and Fitment Compatibility

This power steering pump is an OEM BMW part, which simplifies identification and selection by part number and interchangeable numbers. This allows for precise verification of compatibility with specific body styles and N52 engine configurations, minimizing the risk of purchasing an incompatible component. In practice, this results in simpler installation without the need for modifications to mounts or the hose system.

Before installation, it is recommended to check the condition of the power steering fluid, hoses, and steering rack to ensure the new pump operates under the most stable conditions possible. A correctly selected OEM part helps maintain the integrity of the entire system and avoids issues with noise or reduced power steering effectiveness after replacement.

Part Condition and Service Application

The offered power steering pump is a used part, making it an attractive solution for maintenance repairs on older BMW models. Such components are often chosen when the existing pump shows signs of wear, such as leaks, noisy operation, or temporary loss of power assist during turns.

Replacing the power steering pump in the N52 engine is an important step in comprehensive steering system service – especially when hoses, the reservoir, or the steering rack are serviced concurrently. Using an OEM part helps maintain consistent operating parameters for the entire system and reduces the risk of secondary failures.

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

Technical Support and Service Knowledge

When selecting hydraulic components like a power steering pump, knowledge of the operating principles of vehicle supply and fluid flow systems is helpful. It is worthwhile to familiarize yourself with materials regarding diagnostics, OEM part selection, and the principles of component refurbishment and operation to better plan the service of the entire system.

Additional information on pump operation, part selection by numbers, and practical aspects of operation can be found in the article “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Refurbishment”, which discusses, among other things, the approach to diagnosing and refurbishing components from the pump group in modern vehicles.