2017-2019 Mercedes-Benz GLS63 AMG Seat Wire / Wiring Harness Front, Left, Right 1664407507
OEM Part #: 166-440-75-07 (1664407507)
Actual photo
The exact part you’ll receive — not a stock photo.
$42.49
Side: Front, Left, Right
Used
Donor2013 Mercedes-Benz GL450 · 4.7L
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Genuine OEM Used
SKU: 662627
Donor Vehicle: 2013 Mercedes-Benz GL450 · 4.7L
2 photos
$42.49
30-Day Returns
Genuine OEM Used
SKU: 662625
Donor Vehicle: 2013 Mercedes-Benz GL450 · 4.7L
2 photos
$42.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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This genuine Mercedes-Benz seat wiring harness, OEM 1664407507, is a used OEM component removed from a donor vehicle. Also called the seat wire harness, it connects power, heating, and adjustment circuits for the front left or right seat. Recurring failures in this harness include broken conductors from seat movement, leading to non-functional seat controls or memory. It is compatible with GL450 and GLS63 AMG models equipped with the 4.7L or 5.5L twin-turbo V8. If power seat functions are intermittent, a damaged harness is a common cause.
Specifications
| Fits Vehicle Model | GLS63 AMG |
| Fits Vehicle Make | Mercedes-Benz |
| OEM Part No | 166-440-75-07 (1664407507) |
| Side | Front, Left, Right |
| Category | Seats |
Compatible Vehicles
Fits 3 vehicle configurations across 1 make, 2017-2019.
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 3 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2019 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | |
| 2018 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo | |
| 2017 | Mercedes-Benz | GLS63 AMG | SUV | 5.5L V8 Turbo |