BBB Industries 312-0121 Rack and Pinion Assembly

Overview of BBB Industries Reman Rack and Pinion Assembly

The BBB Industries Reman Rack and Pinion Assembly 312-0121 is designed specifically for Audi A6, A6 Quattro, and Allroad Quattro models. This remanufactured hydraulic rack and pinion unit includes essential components such as bushings and inner tie rods to ensure reliable steering performance.

• Remanufactured hydraulic rack and pinion assembly
• Includes bushings and inner tie rods for complete installation
• Distance between mounting holes: 20.06 inches (509.524 mm)
• Input shaft diameter: 0.812 inches (20.625 mm), length: 1.375 inches (34.925 mm)
• Rack length: 42.125 inches (1069.975 mm)
• Pressure port thread size: M14x1.50; return port thread size: M16x1.50
• Turns lock to lock: 2.813
• Two mounting holes for secure fitment

Details on the Reman Rack and Pinion Product Line

The Reman Rack and Pinion line from BBB Industries offers remanufactured steering gear assemblies that meet OEM specifications. This product line focuses on restoring the original performance and durability of the steering system by including critical components such as bushings and inner tie rods. The 312-0121 part number is part of this line, providing a cost-effective solution for Audi A6 and Allroad Quattro vehicles requiring hydraulic steering rack replacement.

Technical Description and Specifications

This rack and pinion assembly features a hydraulic design compatible with the specified Audi models. The input shaft measures 0.812 inches in diameter and 1.375 inches in length, ensuring proper engagement with the steering column. The rack length of 42.125 inches supports the steering geometry of the vehicle, while the 20.06-inch distance between mounting holes allows for precise installation. The assembly includes bushings and inner tie rods, but outer tie rods are not included. Thread sizes for pressure and return ports are M14x1.50 and M16x1.50 respectively, matching factory specifications.

Common Applications and Problem Resolution

• Replacement for worn or leaking hydraulic rack and pinion units on Audi A6, A6 Quattro, and Allroad Quattro
• Eliminates steering play caused by damaged bushings or inner tie rods
• Restores proper steering response and reduces noise or vibration
• Addresses fluid leaks from pressure or return ports
• Corrects uneven or difficult steering effort due to rack wear

Installation Notes and Tips

• Verify compatibility with Audi A6, A6 Quattro, or Allroad Quattro before installation
• Ensure hydraulic lines match M14x1.50 and M16x1.50 thread sizes for pressure and return ports
• Inspect and replace outer tie rods separately as they are not included
• Check mounting hole alignment using the 20.06-inch spacing for proper fit
• Bleed the hydraulic steering system thoroughly after installation to remove air

Quality Assurance and Warranty

BBB Industries remanufactured rack and pinion assemblies undergo rigorous testing to meet OEM standards. The 312-0121 part number is built to restore steering performance with included bushings and inner tie rods for durability. Warranty coverage details should be confirmed with the distributor or installer, as BBB Industries typically offers limited warranties on remanufactured steering components.