Mercedes R171 M272 Petrol Power Steering Pump Hydraulic Unit A0044660401

The Mercedes R171 M272 Power Steering Pump is an original part from the Power Steering Pump Parts group, designed for gasoline engine vehicles. This used pump offers a functional solution for drivers looking to restore proper steering system operation, maintaining factory performance characteristics and optimal driving comfort.

Specifications and technical data

• SKU: A0044660401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0044660401
• Substitutable numbers: A0044660401, A 004 466 04 01
• Fuel type: Petrol
• Category: Power Steering Pump Parts

Purpose and Function in the Steering System

The power steering pump in models with the M272 engine is responsible for generating pressure within the hydraulic system, which directly affects the effort required to turn the steering wheel. Using a dedicated pump for gasoline engines ensures correct operating parameters, stable working pressure, and predictable steering system response across the full engine RPM range.

By retaining the original design, the system remains consistent with the manufacturer's factory specifications, which is particularly important for precise vehicle handling, especially in Mercedes vehicles where the steering system is calibrated for a specific type of pump.

Benefits of Using an Original Power Steering Pump

Using an original pump from the Power Steering Pump Parts group allows you to maintain:

• consistency with the factory hydraulic system and high-pressure lines,
• appropriate power steering characteristics at low and high speeds,
• proper interaction with other steering system components.

A used OEM part is a solution that enables technically correct repairs without the need for aftermarket replacements with uncertain parameters. For many users, this represents a sensible compromise between cost and maintaining factory-quality system performance.

Technical Characteristics and Compatibility

The pump is designed to work with gasoline engines, meaning it is adapted to the specific operating conditions of the M272 unit, such as RPM range, loads, and required system pressure. Appropriately selected gear ratios and hydraulic efficiency translate into predictable vehicle behavior during maneuvering, city driving, and highway driving.

The presence of the OEM part number and interchangeable numbers (visible in the specifications section) facilitates verification of compatibility with your specific vehicle configuration. Before purchasing, it is advisable to compare this information with your car's documentation or the details of the removed part to ensure full installation compatibility.

Condition, Installation, and Service Application

The pump is a used part, meaning it has been removed from a vehicle and can be used as a service part for steering system repairs. This type of solution is often chosen for vehicles several years old, where maintaining technical functionality at a reasonable operating cost is crucial.

During installation, standard service procedures are recommended: checking system cleanliness, replacing the power steering fluid with fresh fluid, and bleeding the system after startup. A correctly performed replacement will restore stable steering system operation and reduce the risk of noise or pressure drops.

System Expansion and Selection of Other Components

If you are planning a comprehensive repair or upgrade of the steering system area in your Mercedes and require other parts from the same group, such as hydraulic lines, the fluid reservoir, or additional mounting hardware, check the available parts in the Mercedes Power Steering Pump Parts category.

To better plan your vehicle's servicing and operating costs, it is worth familiarizing yourself with practical tips regarding the most frequently replaced components. The article TOP 10 Most Frequently Replaced Parts in Your Car will be helpful, offering guidance on how to approach repairs consciously without overpaying.