Bosch KS01000658 Power Steering Pump

Bosch Remanufactured Power Steering Pump

This Bosch Power Steering Pump (Remanufactured) is a mechanical steering pump built for Mercedes-Benz applications that require OE-style hydraulic steering performance. Part number KS01000658 is a direct-fit replacement for select GL320, ML320, and R320 models, with fitment tied to specific chassis and production dates where noted.

Key Features

• Remanufactured Bosch power steering pump for hydraulic steering systems
• Mechanical steering pump construction for Mercedes-Benz applications
• Fits select 2007-2008 Mercedes-Benz ML320 and R320 models
• Fits select 2007-2008 Mercedes-Benz GL320 models with chassis and production limits noted
• OE-style replacement part number KS01000658
• Cross-reference: 0044668301

Detailed Description

Bosch Power Steering Pump (Remanufactured), part number KS01000658, is engineered for Mercedes-Benz vehicles that use a mechanical power steering pump. This remanufactured unit is listed for 2007-2008 Mercedes-Benz ML320 and R320, plus 2007-2008 Mercedes-Benz GL320 with fitment limited to chassis A 390564 and earlier, and to 02/2008 for the 2008 model year. For buyers searching for a Mercedes-Benz GL320 power steering pump remanufactured replacement or a Bosch KS01000658 steering pump, this listing provides the vehicle-specific coverage needed for accurate ordering.

The Bosch Power Steering Pump line focuses on hydraulic steering components built to restore steering assist performance in OE-configured systems. If your Mercedes-Benz ML320, R320, or GL320 has steering noise, reduced assist, or pump wear, this remanufactured pump is the correct service part to match the original application.

Common Reasons for Replacement

• Whining or groaning from the power steering system
• Reduced steering assist at low speeds
• Fluid leakage from the pump assembly
• Rough or inconsistent steering effort
• Wear-related pump failure in hydraulic steering systems

Installation Notes and Tips

Verify the chassis number and production date before ordering, especially on 2007-2008 Mercedes-Benz GL320 applications. Confirm the vehicle uses the correct mechanical power steering pump configuration and inspect the steering fluid condition, hoses, and related components during service. Proper system bleeding after installation is important to remove trapped air and restore normal steering operation.

Quality Assurance

This Bosch remanufactured power steering pump is built as a service replacement for the original application and is listed under Bosch part number KS01000658. It is intended for direct fitment on the specified Mercedes-Benz models and cross-references OE number 0044668301.