Bosch KS01000539 Power Steering Pump

Bosch Remanufactured Power Steering Pump

Bosch KS01000539 is a remanufactured mechanical power steering pump for select Volkswagen applications. It is built for drivers replacing a worn steering pump on 1990-1993 Volkswagen Corrado and 1991-1993 Volkswagen Passat models, including Passat vehicles with air conditioning.

Key Features

• Remanufactured Bosch power steering pump
• Mechanical steering pump design
• Direct-fit replacement for select Volkswagen steering systems
• Fits 1991-1993 Volkswagen Passat with air conditioning
• Fits 1990-1991 Volkswagen Corrado
• Part number KS01000539 for catalog lookup and ordering

Product Details

Part of Bosch Power Steering Pump (Remanufactured) line, KS01000539 is a remanufactured steering pump intended for vehicles that need restored hydraulic steering assist. Bosch remanufactured components are processed to return the unit to serviceable condition for the specified application, making this pump a practical replacement when the original pump is noisy, leaking, or no longer delivering consistent steering pressure. This part cross-references 037145157D for the same application.

What It Helps Address

• Hard steering effort at low speeds
• Whining or groaning from the power steering system
• Fluid leakage from a failing pump assembly
• Reduced hydraulic pressure in the steering circuit
• Steering assist loss on Volkswagen Corrado and Volkswagen Passat models

Installation Notes and Tips

Verify the vehicle year, model, and air conditioning configuration before installation. Inspect the belt drive, hoses, reservoir, and fluid condition during replacement so the new pump is not affected by contamination or a worn drive component. After installation, bleed the power steering system according to the vehicle service procedure to remove trapped air and restore normal steering feel.

Quality Assurance

Bosch remanufactured steering components are built for the listed vehicle applications and cataloged under KS01000539 for accurate identification. Confirm fitment against the vehicle’s original part number and steering system configuration before installation.