Complete set of left and right side LED headlights (reference part number: 1669066603) for 2017-2019 Mercedes GLS models including GLS166, GLS450, GLS550, and GLS63 (same as shown in parts diagram)
Applicable to 2017–2019 Mercedes GLS models: GLS166, GLS450, GLS550, and GLS63. This is a set of left and right side LED headlights with a specified reference part number.
- Light Source: LED
- Product Type: Headlights, 2-piece set
- Reference Part Number: 1669066603
- Fit Position: Left and right sides of the vehicle
- Compatibility: Left & Right LED headlights (166-906-66-03) for 2017–2019 Mercedes GLS166/450/550/63, fits seamlessly
If unsure whether this left & right LED headlight set (1669066603) fits your 2017–2019 Mercedes GLS166/450/550/63, send us your VIN and car photo before purchasing. We confirm compatibility for free to avoid order mistakes.
- 3-month quality warranty on manufacturing defects.
- If there is an issue with the left & right LED headlight set, contact us for return request, we help resolve quickly.
- Processing time: 1–3 business days.
- Delivery time: 7–10 business days via LTL freight.
- Liftgate or internal delivery services: not included (extra charge if needed).
- Minor scratches during transport: may occur, resolvable during polishing process.
- Inspection upon arrival: check package immediately, report damage promptly.
