Bosch KS01000912 Rack and Pinion Assembly

Bosch Hydraulic Steering Rack for Audi A4

This Bosch remanufactured hydraulic steering rack is built for direct replacement in select Audi A4 and Audi A4 Quattro applications. It is a rack and pinion assembly for vehicles equipped without Servotronic steering, with fitment that includes 2002-2006 Audi A4 and 2002-2006 Audi A4 Quattro configurations listed below.

Key Features

• Bosch steering rack, hydraulic, remanufactured
• Rack and pinion assembly for steering system repair
• Direct-fit application for select Audi A4 and Audi A4 Quattro models
• Built for vehicles without Servotronic steering where specified
• Part number KS01000912 for accurate ordering and lookup

Product Details

The Bosch Steering Rack, Hydraulic (Remanufactured), part number KS01000912, is a remanufactured steering gear assembly for restoring steering response in supported Audi applications. Bosch’s steering rack line focuses on hydraulic rack and pinion replacement parts that match the original steering system layout, making this unit a practical choice for Audi A4 and Audi A4 Quattro vehicles that require a hydraulic steering rack service replacement. This part cross-references OE numbers 8E1422053K and 8E1422054A for the same application.

Fitment

• Fits 2003-2006 Audi A4, N/A, without Servotronic Steering.
• Fits 2004-2006 Audi A4 Quattro, N/A, without Servotronic Steering.
• Fits 2002 Audi A4, N/A.
• Fits 2002 Audi A4 Quattro, N/A, from chassis # 8E-2-300 000.

Common Repair Uses

• Steering play or looseness in the wheel
• Hydraulic steering fluid leaks from the rack assembly
• Uneven or inconsistent steering effort
• Noisy steering operation caused by internal rack wear
• Replacement of a worn steering rack on Audi A4 or Audi A4 Quattro models

Installation Notes

Verify the vehicle’s steering configuration before installation, especially the Servotronic steering requirement and the chassis break listed for 2002 Audi A4 Quattro. Confirm the part number KS01000912 against the original unit and inspect hydraulic lines, tie rod ends, and related steering components during service. Proper alignment is required after steering rack replacement.

Quality Assurance

This Bosch remanufactured steering rack is produced as a remanufactured replacement part for hydraulic steering system service. Bosch is a recognized OE supplier in automotive steering and chassis components, and this part is cataloged for direct application matching in the listed Audi fitments.