BBB Industries 313-0290 Rack and Pinion Assembly

Overview of BBB Industries Reman Rack and Pinion Assembly

The BBB Industries Reman Rack and Pinion Assembly, part number 313-0290, is designed specifically for select Mercedes-Benz models including GL320, GL350, GL450, GL550, ML63 AMG, ML320, ML350, ML450, ML500, and ML550. This remanufactured hydraulic rack and pinion unit comes with essential components to ensure reliable steering performance.

• Remanufactured hydraulic rack and pinion assembly
• Includes bushings and inner tie rods for complete installation
• Distance between mounting holes: 15.63 inches (397.002 mm)
• Input shaft diameter: 0.813 inches (20.638 mm), length: 2.5 inches (63.5 mm)
• Rack length: 46.625 inches (1184.275 mm)
• Pressure and return port thread size: 11mm
• Turns lock to lock: 3.125
• Two mounting holes for secure fitment

Details on the Reman Rack and Pinion Product Line

The Reman Rack and Pinion line by BBB Industries focuses on providing remanufactured steering gear assemblies that meet OEM specifications. This product line ensures that critical components such as bushings and inner tie rods are included, facilitating a more straightforward installation process. The remanufactured units undergo thorough testing to restore functionality and durability, making them suitable replacements for worn or damaged steering racks in compatible Mercedes-Benz vehicles.

Product Description and Specifications

This rack and pinion assembly is hydraulic, designed to deliver precise steering response for Mercedes-Benz SUVs and performance models. The assembly includes bushings and inner tie rods, but outer tie rods are not included. The input shaft measures 0.813 inches in diameter and 2.5 inches in length, matching OEM dimensions for proper fitment. The rack length of 46.625 inches and the 15.63-inch distance between mounting holes ensure compatibility with the specified Mercedes-Benz GL and ML series models. The pressure and return ports both feature 11mm thread sizes, supporting hydraulic fluid connections. With 3.125 turns lock to lock, this assembly maintains the steering feel expected from the original equipment.

Common Applications and Problem Resolution

• Replacement for worn or leaking hydraulic rack and pinion units
• Restores steering precision and reduces play in Mercedes-Benz GL and ML models
• Addresses issues such as uneven steering effort or noise during turns
• Eliminates fluid leaks from damaged pressure or return ports
• Improves overall vehicle handling and safety

Installation Notes and Tips

When installing the BBB Industries Reman Rack and Pinion Assembly 313-0290, ensure the mounting holes align precisely with the vehicle’s frame using the 15.63-inch spacing. Verify that the input shaft dimensions match the steering column connection. Since inner tie rods and bushings are included, inspect and replace outer tie rods separately if needed. Properly torque all mounting bolts and bleed the hydraulic system to remove air for optimal steering performance.

Quality Assurance and Warranty

BBB Industries remanufactured rack and pinion assemblies undergo comprehensive testing to meet OEM standards. This ensures reliable operation and durability comparable to new units. While specific warranty details are not provided here, BBB Industries typically offers limited warranties on remanufactured steering components to cover defects in materials and workmanship.