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Womala Hydraulic Power Steering Pump OE 64663101 for Mercedes
The Hydraulic Power Steering Pump (OE: 64663101) is a core component of the power steering system for Mercedes Benz W164 series ML models and W251 series R-Class models. Mounted on the engine, it converts mechanical energy into hydraulic pressure to provide steering assistance, significantly reducing driver effort. As an OE-grade part, it meets Mercedes’ strict standards for pressure stability, hydraulic efficiency, and durability, ensuring reliable operation across conditions (e.g., low-speed parking, long-distance driving, extreme temperature fluctuations).
Constructed from high-performance materials: the pump housing adopts high-strength aluminum alloy (for lightweight design and corrosion resistance), while internal precision-machined rotors and wear-resistant seals withstand high hydraulic pressure. This structure minimizes fluid leakage and maintains consistent pressure output.
Core Functions
Hydraulic Assistance: Generates stable hydraulic pressure to reduce steering force, making low-speed maneuvering and daily driving more effortless.
Precise Steering Control: Delivers instant hydraulic response during steering operations, ensuring smooth, accurate vehicle handling.
System Protection: Equipped with a built-in pressure relief valve to prevent overpressure damage to steering hoses, racks, and other components, extending the system’s overall lifespan.
Compatible Vehicles
This Hydraulic Power Steering Pump is tailored for the following Mercedes Benz models and its respective OE number:
Item
Details
Product OE Number
64663101
Mercedes Benz Model
W251 251065 R 350 4MATIC
W164 164186 ML 350 4MATIC
Notes: This Hydraulic Power Steering Pump is model-specific and designed exclusively for the listed Mercedes Benz models. Do not use it for other models or variants to avoid insufficient steering assistance, hydraulic leakage, or system malfunctions. During installation, ensure proper alignment with the engine pulley and secure connection of hydraulic hoses. Use only Mercedes-approved power steering fluid to maintain optimal performance. Periodically check for fluid leaks, abnormal noise during operation, or stiff steering, and replace immediately if faulty to ensure safe and smooth driving.
Frequently Asked Questions
Q: How to determine if the bumper bracket needs replacement?
A: Signs of a failing bumper bracket include visible damage or deformation, misaligned bumper panels, unusual noises from the front end, or if the bumper appears loose or sagging on one side.
Q: What should be paid attention to when replacing the bumper bracket?
A: For optimal results, we recommend professional installation. Key considerations include ensuring proper alignment of all mounting points, checking for additional damaged components, and verifying all fasteners are properly torqued to specification.
Why Choose Our Products
Extensive Industry Experience: 13 years specializing in Volvo auto parts with precise product matching and technical solutions.
Quality Assurance: 10-stage quality inspection process including durability testing, surface roughness analysis, and dimensional verification.
Manufacturing Excellence: 15,000㎡ production base with 10,000+ SKUs in inventory for fast order fulfillment.
Strategic Partnerships: Collaborations with 50+ factories including suppliers to international brands like Bosch and Hella.
Company Profile
Established in Guangzhou China, Womala Auto parts as a comprehensive company with five branches has engaged in Volvo parts for more than 10 years.There are hundreds of professional staff working in our supply department, sales and logistic support departments.Thanks to the deep coop... Company Profile
Established in Guangzhou China, Womala Auto parts as a comprehensive company with five branches has engaged in Volvo parts for more than 10 years.There are hundreds of professional staff working in our supply department, sales and logistic support departments.Thanks to the deep coop...