BMW E81 E87 E90 E91 E92 E93 Power Steering Pump N52 Petrol 4042171

The BMW E81 E87 E90 E91 E92 E93 Power Steering Pump N52 is an original part from the Power Steering Pumps group, designed for BMW gasoline engines from the N52 family. Engineered for specific 1 and 3 Series models, it ensures proper system pressure, stable steering rack operation, and predictable vehicle response during maneuvering.

Specifications and technical data

• SKU: 4042171
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 4042171
• Substitutable numbers: 4042171, 32414042171, 6769887, 32416769887, 4039954, 32414039954, 4036733, 32414036733, 4038714, 32414038714, 4035682, 32414035682, LH2113605
• Fuel type: Petrol
• Part type: Power Steering Pump
• Category: Power Steering Pumps

Intended Use and Compatibility with N52 Engines

The presented power steering pump has been designed with N52 gasoline units used in BMW E81, E87, E90, E91, E92, and E93 series in mind. Its appropriate operating characteristics in terms of gasoline engine RPM and load allow for maintaining correct working pressure across the entire speed range, which translates to predictable, smooth power steering operation.

Thanks to its precise fit for specific engine families and body platforms, the pump works seamlessly with the factory steering rack and hydraulic lines, minimizing the risk of installation issues and the need for system modifications.

Power Steering System Construction and Operating Parameters

The pump is responsible for generating pressure in the hydraulic power steering system, supplying the steering rack with oil under the appropriate load. The carefully designed construction of the housing, impeller, and control valves allows for maintaining stable pressure at both low and high engine speeds, which is crucial for everyday driving – from parking to highway cruising.

When used with the correctly selected power steering fluid, this component reduces system noise, decreases steering wheel resistance, and helps maintain consistent, predictable power steering performance over extended use.

Benefits of Using an Original BMW Pump

Using an original power steering pump in a BMW with an N52 gasoline engine allows for maintaining the vehicle's factory driving characteristics. Proper integration with the steering system geometry and engine operating characteristics results in:

• consistent, predictable vehicle response to steering wheel input,
• reduced risk of excessive system vibrations and noise,
• better cooperation with other power steering hydraulic components.

For users who value original BMW solutions, it is also important that the power steering pump retains the factory mounting points and hose connection methods, which simplifies servicing and reduces replacement time.

Used Product Characteristics

This item comes from the used parts segment, allowing for an economical repair of the power steering system while maintaining the original manufacturer's specifications. This type of solution is often chosen by discerning users who seek a compromise between repair cost and preserving the original steering system design.

Before installation, standard servicing procedures are recommended: checking the condition of the lines, flushing the system, and replacing the fluid with new to ensure the most stable operating conditions for the pump and minimize the risk of contamination in the circuit.

Technical Support and Part Selection by Numbers

The pump is compatible with gasoline-powered systems, so when selecting a part, it is important to ensure compatibility with the specific engine version and vehicle year. Part identification is aided by the OEM part number and available cross-reference numbers, which allow for precise component matching to a specific vehicle.

If you want to better understand the relationships between pumps, injectors, and other fuel system components, the article describing diagnostics and component selection by VIN and OEM numbers will be helpful – check out the material: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.

BMW Steering System Modernization Extension

If you are planning a comprehensive repair or modernization of the steering system area in your BMW and need other parts from the same group, such as hydraulic lines, steering rack, or fluid reservoir, check out the available parts in the BMW Power Steering Pumps category.

When considering purchasing an item from the secondary market, it is also worth familiarizing yourself with the guide on the advantages and principles of selecting original used components – practical tips can be found in the article: Used Parts for BMW – Is It Worth It? Key Benefits for Brand Enthusiasts.