The Lamborghini part number 4S1423050C refers to an earlier production version of the steering gear assembly for the Lamborghini Huracán and Audi R8 (4S).

While the “G” suffix you mentioned previously is a more common mid-series revision, the “C” suffix is specifically associated with the early Gen 2 platform models (typically 2015–2017).

Technical Comparison: 4S1423050C vs. 4S1423050G

• Engineering Level: The “C” revision is an early iteration of the electromechanical rack. Lamborghini and Audi frequently update these parts to address sensor calibration, internal sealing, or software logic improvements.

• Supersession: In most official parts catalogs, 4S1423050C has been superseded. This means if you order a new one from a dealer today, they will likely provide a newer version (like G, K, or L) which is designed to be backwards compatible.

• Standard vs. Dynamic Steering: You must verify if your car has the LDS (Lamborghini Dynamic Steering) option. Racks for LDS (variable ratio) and standard steering are generally not interchangeable, even if they share the base part number prefix.

Key Details for 4S1423050C

Critical Installation Note

If you are buying a used “C” unit to replace a “G” unit (or vice-versa), be aware of the Software Dataset. These steering racks are “intelligent” components. Even if the hardware fits perfectly, the internal control module may require a specific dataset flash via Lamborghini’s LARA or Audi’s ODIS diagnostic system to match your car’s VIN and suspension configuration (e.g., RWD vs. AWD).

Current Market Status (2026)

• Availability: New “C” units are rare; most “C” stock has been cycled out for newer revisions.

• Used Price: Typically $2,200 – $3,800.

• Reconditioning: Many owners now choose to recondition their existing rack rather than buying a used “C” unit, as it avoids the potential of inheriting the same early-model sensor issues.