Ferrari Purosangue Headlight Left 901638 901660

the part numbers 901638 and 901660 identify the Front Left Headlight Assembly for the Ferrari Purosangue.

These are not just lights; they are complex LED Matrix units that form part of the car’s distinctive “hidden” lighting signature, where the main DRLs (Daytime Running Lights) are separated from the primary illumination units.

1. Technical Identification

The existence of two part numbers for the same side often indicates a version update or a regional specification difference:

• Part 901638: Often refers to the Full LED Matrix Headlight (LHD – Left Hand Drive) for European/Rest of World (ROW) markets.

• Part 901660: Typically refers to the North American (USA/Canada) version, which includes specific side-marker reflectors and different beam pattern logic required by DOT/SAE regulations.

• Technology: These units feature Adaptive Matrix LED technology, which can “black out” specific sections of the high beam to avoid blinding oncoming traffic while keeping the rest of the road illuminated.

2. 2026 Market Pricing (Estimated USD)

Ferrari lighting is notoriously expensive due to the integrated cooling fans, internal ECU drivers, and specialized optics.

3. Installation & Calibration

Replacing a Purosangue headlight is not a “plug-and-play” task in 2026:

• The Front Bumper Removal: To access the mounting bolts for the headlight, the entire front bumper and the front section of the wheel arch liners must be removed.

• Software Coding: The car’s body control module (BCM) must be “taught” the new headlight. Without Ferrari diagnostic software (DEIS), the new unit may flicker, display an error on the digital dash, or fail to engage the adaptive “cornering” functions.

• Vertical Alignment: Because the Purosangue sits higher than a standard Ferrari, the vertical aim is critical to avoid blinding other drivers. This must be set via the internal motor adjustment during the calibration phase.