Door mirror glass (Aspherical), Dimmable, Left for LHD. Porsche 992 / 992 Dakar / 9J1 Taycan  ❭  992857521D

Door mirror glass Aspherical, Dimmable, Left for LHD (Left-Hand drive) cars
This OE Match left door mirror glass is a replacement aspherical, dimmable exterior mirror glass for Porsche 992, 992 Dakar, and 9J1 Taycan models. It is designed for vehicles without Lane Change Assist and matches the original-style fitment, appearance, and viewing function.

Fits:
for cars WITHOUT Lane change assist (option code: 7Y0)
Porsche 992.1 Carrera 2019 - 2024
Porsche 992.1 Turbo 2020 - 2025
Porsche 992.1 GT3/RS/ST 2021 -2025
Porsche 992 DAKAR  2023 - 2024
Porsche 992.2 Carrera 2024 >>
Porsche 992.2 Turbo 2026 >>
Porsche 992.2 GT3 2025 >>
Porsche 9J1 Taycan 2020 - 2024
Porsche 9J1.2 Taycan 2024 >>

LEFT Door Mirror Glass ASPHERICAL: OE Part No 992857521D
  5SL / 4L6 / L0L 

CODES:
   PR:5SL = Door mirror, Left, ASPHERICAL
   PR:4L6 = Breakaway interior rearview mirror, auto-dimming
   PR:L0L = Left-Hand drive


The aspherical mirror glass provides a wider rear-side field of view from the left exterior mirror, helping reduce blind spots and improve side visibility. The dimmable function helps reduce glare from headlights behind the vehicle, improving comfort and visibility during night driving.

Functions
• Replaces the left-side exterior door mirror glass
• Provides aspherical wide-angle side visibility
• Helps reduce blind spots on the left side of the vehicle
• Supports dimming function to reduce glare
• Improves night-time driving comfort and visibility
• Suitable for vehicles without Lane Change Assist
• Fits into the original Porsche door mirror housing
• OE Match replacement for damaged or failed original mirror glass.

Why Replace This Part?
Door mirror glass can become cracked, chipped, scratched, cloudy, loose, or delaminated over time. Dimmable mirror glass can also fail internally, causing dark patches, stains, liquid marks, or loss of dimming performance. Replacing the mirror glass restores clear side visibility, improves driving safety, and returns the mirror assembly to the correct OE-style specification.

When to Replace This Part
•  The mirror glass is cracked, broken, scratched, or missing
•  The dimming function no longer works correctly
•  The mirror surface has dark patches, stains, or internal fluid marks
•  The reflective surface is cloudy, faded, or delaminating
•  Visibility from the left mirror is poor or distorted
•  The glass has become loose or detached from the backing plate
•  The vehicle does not have Lane Change Assist and requires non-LCA mirror glass
•  The door mirror has been damaged by accident or parking impact.

Where it fits on the car
This mirror glass fits in the left-hand exterior door mirror assembly. It mounts into the original mirror housing and connects to the mirror electrical system where dimmable mirror equipment is fitted. This version is for cars without Lane Change Assist.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

992857521D

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