2013-2019 Mercedes-Benz Seatbelt / Seat Belt Retractor (3RD ROW) Left, Rear 1668601786
OEM Part #: 166-860-17-86 (1668601786)
Actual photo
The exact part you’ll receive — not a stock photo.
$84.99
Side: Left, Rear
Used
ColorBeige
Donor2013 Mercedes-Benz GL450 · 4.7L
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Only 1 in stock — no guaranteed restock
Genuine OEM Used
SKU: 662138 · Beige
Donor Vehicle: 2013 Mercedes-Benz GL450 · 4.7L
2 photos
$84.99
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Used Mercedes-Benz 3rd Row Seatbelt / Seat Belt Retractor, OEM part number 1668601786. This genuine retractor also replaces several interchange numbers including 1668601786289C94, 16686017869C94, 1668601786648T44, and 16686017868T44. It is the left rear retractor for the third row, designed for the X166 and X167 chassis GL and GLS models. As a safety part, installation should be performed by a qualified technician to ensure proper function. A common symptom of a failing retractor is the belt not locking during a sudden stop or failing to retract fully.
Specifications
| Fits Vehicle Model | GL350, GL450, GL550, GL63 AMG, GLS350d, GLS450, GLS550, GLS63 AMG |
| Fits Vehicle Make | Mercedes-Benz |
| OEM Part No | 166-860-17-86 (1668601786) |
| Compatible OEM Part No | 166-860-178-6289-C94, 166-860-178-69-C94, 166-860-178-6648-T44, 166-860-178-68-T44 |
| Side | Left, Rear |
| Category | Seats |
Compatible Vehicles
Fits 26 vehicle configurations across 1 make, 2013-2019.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 26 vehicle configurations — 26 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2013 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | THIRD ROW SEATS |
| 2013 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2013 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2013 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | THIRD ROW SEATS |
| 2014 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | THIRD ROW SEATS |
| 2014 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2017 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | THIRD ROW SEATS |
| 2018 | Mercedes-Benz | GLS450 | SUV | 3.0L V6 Turbo | THIRD ROW SEATS |
| 2018 | Mercedes-Benz | GLS550 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2018 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | THIRD ROW SEATS |
| 2017 | Mercedes-Benz | GLS350d | SUV | 3.0L V6 Diesel Turbo | THIRD ROW SEATS |
| 2017 | Mercedes-Benz | GLS450 | SUV | 3.0L V6 Turbo | THIRD ROW SEATS |
| 2019 | Mercedes-Benz | GLS550 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2019 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | THIRD ROW SEATS |
| 2014 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2014 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | THIRD ROW SEATS |
| 2015 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2015 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | THIRD ROW SEATS |
| 2015 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | THIRD ROW SEATS |
| 2015 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | THIRD ROW SEATS |
| 2016 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | THIRD ROW SEATS |
| 2016 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | THIRD ROW SEATS |
| 2016 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2016 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | THIRD ROW SEATS |
| 2017 | Mercedes-Benz | GLS550 | SUV | 4.7L V8 Turbo | THIRD ROW SEATS |
| 2019 | Mercedes-Benz | GLS450 | SUV | 3.0L V6 Turbo | THIRD ROW SEATS |