Bosch KS01000604 Power Steering Pump

Bosch Remanufactured Power Steering Pump

Bosch Power Steering Pump (Remanufactured), part number KS01000604, is a mechanical steering pump built for select Mercedes-Benz applications. It is a direct-fit replacement for vehicles that need restored hydraulic steering assist and stable pump output.

The Bosch Power Steering Pump line focuses on remanufactured OE-style replacement components for steering systems. This unit is built for the Mercedes-Benz GL450, GL550, ML350, ML550, R350, C230, C280, C350, CLK350, SLK280, and SLK350 applications listed below.

• Remanufactured power steering pump for hydraulic steering systems
• Mechanical steering pump design
• OE cross-reference: Genuine 0044668501
• Interchange reference: 0044667801, 0044667901, 0054662201
• Part number KS01000604 for catalog and service matching

Fitment Details

• Fits 2007-2012 Mercedes-Benz GL450, N/A.
• Fits 2008-2012 Mercedes-Benz GL550, N/A.
• Fits 2006-2011 Mercedes-Benz ML350, N/A.
• Fits 2008-2011 Mercedes-Benz ML550, N/A.
• Fits 2006-2009 Mercedes-Benz R350, N/A.
• Fits 2007 Mercedes-Benz C230, N/A, Optional; To 05/2007.
• Fits 2006-2007 Mercedes-Benz SLK280, N/A.
• Fits 2006-2007 Mercedes-Benz SLK350, N/A.
• Fits 2006 Mercedes-Benz C230, N/A, To 01/2006.
• Fits 2006 Mercedes-Benz C280, N/A, To 01/2006.
• Fits 2006 Mercedes-Benz C350, N/A, To 01/2006.
• Fits 2006 Mercedes-Benz CLK350, N/A, Standard.
• Fits 2006 Mercedes-Benz CLK350, N/A, Optional.

What This Pump Helps Address

• Heavy or inconsistent steering effort
• Whining or pump noise from the hydraulic steering system
• Low steering assist caused by pump wear
• Fluid circulation problems in the power steering circuit
• Steering response issues on Mercedes-Benz GL450, ML350, and related models

Installation Notes

Verify the vehicle’s build date and option code before ordering, especially for 2006-2007 C230, C280, C350, and CLK350 applications with date-specific notes. Confirm hose routing, pulley alignment, and fluid condition during replacement. Flush the steering system if contamination or pump failure is present, and inspect related hoses and seals before returning the vehicle to service. Part number KS01000604 should be matched to the original unit and OE cross-reference numbers during verification.

Quality Assurance

This Bosch remanufactured steering pump is built as a service replacement for the listed Mercedes-Benz applications and is cataloged against OE reference 0044668501 and related interchange numbers. Bosch remanufactured steering pump, KS01000604, is intended for accurate application matching in steering system repairs.