Genuine 0009904050 Steering Gear Nut

Mercedes-Benz Steering Gear Locking Nut

This Genuine steering gear nut, part number 0009904050, is a direct-fit hardware component used at the top of the steering box on select Mercedes-Benz models. It is a locking nut application for steering gear service and repair, with fitment spanning classic and later CLK, E-Class, S-Class, and SL models.

Key Features

• Genuine Mercedes-Benz steering hardware
• Part number 0009904050 for identification and ordering
• Locking nut located at the top of the steering box
• Compatible with a wide range of Mercedes-Benz steering gear applications
• Useful for steering box service on CLK320, CLK430, E320, 300E, 560SEL, and related models

Detailed Description

Genuine 0009904050 is a steering gear nut used in Mercedes-Benz steering box assemblies where a locking nut is required at the top of the steering gear. This part is listed for 127 vehicle applications across model years from 1975 through 2003, including Mercedes-Benz CLK320, CLK430, E300, E320, E420, 300E, 300SD, 560SL, and 500E. If you are servicing the steering box on a Mercedes-Benz 300D, 300TE, or 420SEL, this hardware reference helps confirm the correct OE-style replacement by part number.

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

What It Is Used For

• Replacing a worn or damaged steering gear locking nut
• Restoring proper retention at the top of the steering box
• Supporting steering gear service on Mercedes-Benz CLK320 and CLK430 models
• Addressing steering box hardware issues on E-Class, S-Class, and SL applications
• Matching the correct OE part number during steering repair work

Installation Notes and Tips

Verify the steering box location before ordering and match the vehicle year, model, and notes exactly to the fitment list. Use part number 0009904050 to confirm application during disassembly, and inspect the surrounding steering gear components for wear before reassembly. For Mercedes-Benz steering box service, confirm the locking nut seats correctly at the top of the steering gear.

Quality Assurance

Genuine OE replacement hardware for Mercedes-Benz steering applications. Part number 0009904050 is cataloged for direct fitment across the listed vehicles, including Mercedes-Benz CLK320, CLK430, and multiple E-Class and S-Class models.