Mercedes-Benz Seatbelt / Seat Belt Retractor Front, Left 1668603786
OEM Part #: 166-860-37-86 (1668603786)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
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Seatbelt / Seat Belt Retractor for front left installation in various Mercedes-Benz models. This retractor is essential for safe operation, allowing the seatbelt to automatically retract when not in use and extending smoothly for fastening. Common issues addressed include a seatbelt that fails to retract or does not extend properly. Compatible with: - Mercedes-Benz GLE350, GLE550e (2016-2018) - Mercedes-Benz GL350, GL450, GL550, GL63 AMG (2013-2016) - Mercedes-Benz ML350, ML63 AMG (2012-2015) - Mercedes-Benz ML250, ML400 (2015) - Mercedes-Benz GLE300d, GLE400, GLE43 AMG, GLE63 AMG, GLE63 AMG S (2016-2019) - Mercedes-Benz GLS450, GLS550, GLS63 AMG (2017-2019) - Additional compatible part numbers: 16686013859C94, 16686037869C94, 16686013858P19, 16686037868P19, 16686013857F03, 16686037867F03.
Specifications
| Fits Vehicle Model | GL350, GL450, GL550, GL63 AMG, GLE300d, GLE350, GLE400, GLE43 AMG, GLE450 AMG, GLE550e, GLE63 AMG, GLE63 AMG S, GLS350d, GLS450, GLS550, GLS63 AMG, ML250, ML350, ML400, ML550, ML63 AMG |
| Fits Vehicle Make | Mercedes-Benz |
| OEM Part No | 166-860-37-86 (1668603786) |
| Compatible OEM Part No | 166-860-138-59-C94, 166-860-378-69-C94, 166-860-138-58-P19, 166-860-378-68-P19, 166-860-138-57-F03, 166-860-378-67-F03 |
| Side | Front, Left |
| Category | Seats |
Compatible Vehicles
Fits 72 vehicle configurations across 1 make, 2012-2019.
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 72 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2012 | Mercedes-Benz | ML350 | SUV | 3.5L V6 | |
| 2012 | Mercedes-Benz | ML350 | SUV | 3.0L V6 Diesel Turbo | |
| 2012 | Mercedes-Benz | ML550 | SUV | 4.7L V8 Turbo | |
| 2012 | Mercedes-Benz | ML63 AMG | SUV | 5.5L V8 Turbo | |
| 2013 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | |
| 2013 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo | |
| 2013 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | |
| 2013 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | |
| 2013 | Mercedes-Benz | ML350 | SUV | 3.5L V6 | |
| 2013 | Mercedes-Benz | ML350 | SUV | 3.0L V6 Diesel Turbo | |
| 2013 | Mercedes-Benz | ML550 | SUV | 4.7L V8 Turbo | |
| 2013 | Mercedes-Benz | ML63 AMG | SUV | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | |
| 2014 | Mercedes-Benz | GL450 | SUV | 4.7L V8 Turbo | |
| 2014 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | |
| 2014 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | |
| 2014 | Mercedes-Benz | ML350 | SUV | 3.5L V6 | |
| 2014 | Mercedes-Benz | ML350 | SUV | 3.0L V6 Diesel Turbo | |
| 2014 | Mercedes-Benz | ML550 | SUV | 4.7L V8 Turbo | |
| 2014 | Mercedes-Benz | ML63 AMG | SUV | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | |
| 2015 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | |
| 2015 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | |
| 2015 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | |
| 2015 | Mercedes-Benz | ML250 | SUV | 2.1L l4 Diesel Turbo | |
| 2015 | Mercedes-Benz | ML350 | SUV | 3.5L V6 | |
| 2015 | Mercedes-Benz | ML400 | SUV | 3.0L V6 Turbo | |
| 2015 | Mercedes-Benz | ML63 AMG | SUV | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | GL350 | SUV | 3.0L V6 Diesel Turbo | |
| 2016 | Mercedes-Benz | GL450 | SUV | 3.0L V6 Turbo | |
| 2016 | Mercedes-Benz | GL550 | SUV | 4.7L V8 Turbo | |
| 2016 | Mercedes-Benz | GL63 AMG | SUV | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | GLE300d | SUV | 2.1L l4 Diesel Turbo | |
| 2016 | Mercedes-Benz | GLE350 | SUV | 3.5L V6 | |
| 2016 | Mercedes-Benz | GLE400 | SUV | 3.0L V6 Turbo | |
| 2016 | Mercedes-Benz | GLE63 AMG | SUV | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | GLE63 AMG S | SUV | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | GLE300d | SUV | 2.1L l4 Diesel Turbo | |
| 2017 | Mercedes-Benz | GLE350 | SUV | 3.5L V6 | |
| 2017 | Mercedes-Benz | GLE400 | SUV | 3.0L V6 Turbo | |
| 2017 | Mercedes-Benz | GLE43 AMG | SUV | 3.0L V6 Turbo | |
| 2017 | Mercedes-Benz | GLE63 AMG | SUV | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | GLE63 AMG S | SUV | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | GLS350d | SUV | 3.0L V6 Diesel Turbo | |
| 2017 | Mercedes-Benz | GLS450 | SUV | 3.0L V6 Turbo | |
| 2017 | Mercedes-Benz | GLS550 | SUV | 4.7L V8 Turbo | |
| 2017 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | |
| 2018 | Mercedes-Benz | GLE350 | SUV | 3.5L V6 | |
| 2018 | Mercedes-Benz | GLE43 AMG | SUV | 3.0L V6 Turbo | |
| 2018 | Mercedes-Benz | GLE63 AMG | SUV | 5.5L V8 Turbo | |
| 2018 | Mercedes-Benz | GLE63 AMG S | SUV | 5.5L V8 Turbo | |
| 2018 | Mercedes-Benz | GLS450 | SUV | 3.0L V6 Turbo | |
| 2018 | Mercedes-Benz | GLS550 | SUV | 4.7L V8 Turbo | |
| 2018 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | |
| 2019 | Mercedes-Benz | GLE400 | SUV | 3.0L V6 Turbo | |
| 2019 | Mercedes-Benz | GLE43 AMG | SUV | 3.0L V6 Turbo | |
| 2019 | Mercedes-Benz | GLE63 AMG | SUV | 5.5L V8 Turbo | |
| 2019 | Mercedes-Benz | GLE63 AMG S | SUV | 5.5L V8 Turbo | |
| 2019 | Mercedes-Benz | GLS450 | SUV | 3.0L V6 Turbo | |
| 2019 | Mercedes-Benz | GLS550 | SUV | 4.7L V8 Turbo | |
| 2019 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | GLE550e | SUV | 3.0L V6 Turbo | |
| 2016 | Mercedes-Benz | GLE63 AMG S | SUV Coupe | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | GLE43 AMG | SUV Coupe | 3.0L V6 Turbo | |
| 2017 | Mercedes-Benz | GLE550e | SUV | 3.0L V6 Turbo | |
| 2017 | Mercedes-Benz | GLE63 AMG S | SUV Coupe | 5.5L V8 Turbo | |
| 2018 | Mercedes-Benz | GLE43 AMG | SUV Coupe | 3.0L V6 Turbo | |
| 2018 | Mercedes-Benz | GLE550e | SUV | 3.0L V6 Turbo | |
| 2018 | Mercedes-Benz | GLE63 AMG S | SUV Coupe | 5.5L V8 Turbo | |
| 2019 | Mercedes-Benz | GLE43 AMG | SUV Coupe | 3.0L V6 Turbo | |
| 2019 | Mercedes-Benz | GLE63 AMG S | SUV Coupe | 5.5L V8 Turbo | |
| 2016 | Mercedes-Benz | GLE450 AMG | SUV Coupe | 3.0L V6 Turbo |