BBB Industries 503-0139 Steering Gear

Overview of BBB Industries Reman Steering Gear 503-0139

The BBB Industries Reman Steering Gear 503-0139 is designed for reliable steering performance in select Chevrolet, GMC, Isuzu, and Oldsmobile vehicles. This remanufactured electric steering gear is engineered to meet OEM specifications, ensuring compatibility and durability for models like the Chevrolet Blazer, GMC Jimmy, and Isuzu Hombre.

• Remanufactured electric steering gear with precise fitment
• Output shaft diameter: 1.25 inches (31.75 mm)
• Input shaft diameter: 0.72 inches (18.29 mm)
• Input shaft spline count: 26; output shaft spline count: 32
• Inlet and pressure port thread size: M18x1.50; outlet and return port thread size: M16x1.50
• Includes installation kit for streamlined replacement
• Three mounting holes and 3 turns lock to lock for responsive steering

Details on the Reman Steering Gear Product Line

The Reman Steering Gear line from BBB Industries focuses on remanufactured steering components that restore original steering performance. Each unit, including part number 503-0139, undergoes a thorough remanufacturing process to ensure critical dimensions such as shaft diameters and spline counts meet factory standards. This product line supports electric steering systems, providing a cost-effective alternative to new parts without compromising quality.

Technical Specifications and Compatibility

This steering gear features an output shaft diameter of 1.25 inches (31.75 mm) and an input shaft diameter of 0.72 inches (18.29 mm), with spline counts of 26 on the input and 32 on the output shaft. The inlet and pressure ports use M18x1.50 threads, while the outlet and return ports use M16x1.50 threads, ensuring proper hydraulic connections. Designed with three mounting holes and a lock-to-lock turn count of 3, it fits electric steering systems on Chevrolet Blazer, GMC Jimmy, Isuzu Hombre, Oldsmobile Bravada, Chevrolet S10, and GMC Sonoma models.

Common Applications and Problem Resolution

• Restores steering response in vehicles with worn or leaking steering gears
• Eliminates excessive play or looseness in the steering system
• Addresses hydraulic leaks due to damaged pressure or return ports
• Replaces faulty electric steering components for improved control
• Solves mounting issues with precise hole alignment and spline compatibility

Installation Notes and Tips

The BBB Industries 503-0139 steering gear includes an installation kit to facilitate proper assembly. Ensure all hydraulic connections match the specified M18x1.50 and M16x1.50 thread sizes. Verify spline counts and shaft diameters before installation to confirm compatibility with your vehicle’s steering column. Follow manufacturer torque specifications for mounting bolts and bleed the steering system after installation to remove air and ensure smooth operation.

Quality Assurance and Warranty

This remanufactured steering gear is built to meet or exceed OEM standards, providing reliable performance for electric steering systems. BBB Industries backs the Reman Steering Gear line with a warranty that covers defects in materials and workmanship, offering peace of mind for professional repairs and replacements.