BBB Industries 103-0139 Rack and Pinion Assembly

Reman Rack and Pinion for Buick, Oldsmobile

BBB Industries Reman Rack and Pinion 103-0139 is a hydraulic rack and pinion assembly built for direct replacement in select Buick and Oldsmobile applications. It includes inner tie rods and bushings, with OE-style port sizing and mounting dimensions for a service-ready steering repair.

Key Features

• Remanufactured hydraulic rack and pinion assembly
• Inner tie rods included; outer tie rods not included
• Bushings included for mounting support
• Pressure port thread size: M18x1.50
• Return port thread size: M16x1.50
• Input shaft diameter: 0.625 in. (15.875 mm)
• Input shaft length: 1.125 in. (28.575 mm)
• Rack length: 50.25 in. (1276.35 mm)
• Turns lock to lock: 3.625
• Distance between mounting holes: 11.75 in. (298.45 mm)
• Three mounting holes

Product Details

BBB Industries 103-0139 is part of the Reman Rack and Pinion line, a remanufactured steering component family focused on restoring factory-style hydraulic steering performance. This unit is built for vehicles equipped with power steering and uses the specified mounting and port dimensions to match the original steering layout. It cross-references Monroe Shocks & Struts 19320471 for the same application.

Fits 1997-1998 Buick Park Avenue, N/A, with power steering and magnetic speed variable assist steering. Fits 1997-1998 Buick Park Avenue, N/A, with power steering. Fits 1995-1998 Buick Riviera, N/A, with power steering. Fits 1995-1997 Oldsmobile Aurora, N/A, with power steering. BBB Industries 103-0139 is a direct-fit steering replacement for these Buick Park Avenue, Buick Riviera, and Oldsmobile Aurora applications.

Common Repair Uses

• Steering play or looseness at the wheel
• Hydraulic steering fluid leakage from the rack assembly
• Uneven or inconsistent steering response
• Excessive steering effort in power steering systems
• Wear-related noise from internal rack components

Installation Notes

Verify hydraulic port thread sizes, mounting-hole spacing, and input shaft dimensions before installation. Transfer or replace any vehicle-specific steering connections as required by the application, and align the vehicle after rack and pinion replacement. Confirm fitment against the exact model year and steering equipment listed for Buick Park Avenue, Buick Riviera, and Oldsmobile Aurora.

Quality Assurance

BBB Industries remanufactured steering components are processed to restore functional performance and dimensional consistency for service replacement. This part is identified by part number 103-0139 and is intended for direct replacement in the listed applications.