BBB Industries 503-0186 Steering Gear

Reman Steering Gear for Silverado and Sierra HD

BBB Industries Reman Steering Gear 503-0186 is a remanufactured electric steering gear built for direct replacement in select heavy-duty GM trucks. It is specified for 2007-2010 Chevrolet Silverado 3500 HD and 2007-2010 GMC Sierra 3500 HD models with power steering and single rear wheels.

This BBB Industries Reman Steering Gear line focuses on restoring steering response with application-specific fitment and OE-style connection points. Part number 503-0186 is a practical choice when replacing a worn steering gear on a Chevrolet Silverado 3500 HD or GMC Sierra 3500 HD.

Key Features

• Remanufactured electric steering gear
• Fits 2007-2010 Chevrolet Silverado 3500 HD, power steering, single rear wheels
• Fits 2007-2010 GMC Sierra 3500 HD, power steering, single rear wheels
• 3 mounting holes for application-specific installation
• Input shaft diameter: 0.66 in. / 16.76 mm
• Output shaft diameter: 1.25 in. / 31.75 mm
• Output shaft spline count: 32
• Pressure port thread size: M18x1.50
• Return port thread size: M16x1.50
• Turns lock to lock: 3.312
• Installation kit included

Product Details

BBB Industries 503-0186 is part of the Reman Steering Gear product line, a remanufactured steering solution for vehicles that need precise steering feel and correct hydraulic/electric interface dimensions. This unit uses M18x1.50 inlet and pressure port threads, M16x1.50 outlet and return port threads, and a 32-spline output shaft to match the listed heavy-duty GM applications. For buyers searching for a reman steering gear for 2007-2010 Silverado 3500 HD or 2007-2010 Sierra 3500 HD, this part number provides a direct-fit replacement path.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Excessive steering play or looseness
• Hard or inconsistent steering effort
• Fluid leakage at steering gear connections
• Worn internal steering gear components
• Steering response that no longer tracks correctly

Installation Notes and Tips

Verify the vehicle is a 2007-2010 Chevrolet Silverado 3500 HD or 2007-2010 GMC Sierra 3500 HD with power steering and single rear wheels before ordering. Confirm port thread sizes, mounting-hole count, and shaft dimensions against the removed unit. After installation, inspect for leaks, bleed the steering system as required, and perform a steering alignment check if service procedures call for it.

Quality Assurance

BBB Industries reman steering components are rebuilt to meet application-specific replacement needs for steering service work. Part number 503-0186 is a remanufactured steering gear intended for direct replacement in the listed GM heavy-duty truck applications.