Lamborghini Huracan 4T0 headlight set

the 4T0 headlight set remains the primary lighting component for the Lamborghini Huracán lineup (LP610-4, LP580-2, Evo, STO, and Tecnica). While the base part number 4T0 is consistent, there are several revisions you need to be aware of to ensure the correct fitment and aesthetic.

1. Component Identification

A “Set” consists of the following two primary units:

• Left Headlight: 4T0941011 (often with suffixes like B, C, D, or E)

• Right Headlight: 4T0941012 (often with suffixes like B, C, D, or E)

2. 2026 Market Pricing (Set of 2)

Prices have remained high as Huracán production has ceased in favor of the Temerario, making “New Old Stock” (NOS) parts more valuable.

3. Compatibility & Versions

• LP610-4 / LP580-2 (Standard): Feature the classic chrome/silver internal accents.

• Evo / STO / Tecnica (Darkened): These models often use the “Black” or “Darkened” internal housing revision. While electronically compatible with older cars, the visual difference is noticeable if you only replace one side.

• USA vs. EU:

  • USA Spec: Includes the mandatory amber side reflector.

  • EU Spec: Completely clear side lens.

  • Note: Mixing these will cause a dashboard warning light due to different voltage draws for the side markers.

4. Technical Details

• Full LED System: No separate “bulbs.” The high beam, low beam, and “Y” DRL are all integrated into a single sealed unit.

• Control Modules: A complete set usually requires four modules (two per side): the Main Light Driver and the Daytime Running Light (DRL) Module. If the set you are buying is “Bare,” you must transfer these from your old units.

• Cooling: Each unit has a high-speed internal fan. If these fans fail, the LEDs will dim automatically to prevent the housing from melting.

5. Installation Tip for 2026

If you are buying a used or “take-off” set, check the top mounting tabs. These are made of plastic and are the first things to snap in a minor front-end collision. While “tab repair kits” exist, they are not recommended for a car of this caliber as they can cause vibration in the light beam at high speeds.