2016-2024 BMW Thermostat 11538685978
OEM Part #: 11-53-8-685-978 (11538685978)
Actual photo
The exact part you’ll receive — not a stock photo.
$79.99
Used
Donor2020 BMW M550i xDrive · 4.4L · 68k miles
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Genuine OEM Used
SKU: 555211
Donor Vehicle: 2020 BMW M550i xDrive · 4.4L · 68k miles
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$79.99
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This used OEM BMW thermostat, part 8685978 (also replaces 8602282), came from a donor vehicle. It’s the thermostat for 4.4L V8 twin-turbo engines (N63/S63 family) found in 7 Series, M550i, M850i, X5, and X7. When failing, it often sticks open or closed, causing poor heater output, slow warm-up, or overheating. Install requires a coolant refill and bleed.
Specifications
| Fits Vehicle Model | 750i xDrive, Alpina B7, M550i xDrive, M850i xDrive, M850i xDrive Gran Coupe, X5, X7 |
| Fits Vehicle Make | BMW |
| OEM Part No | 11-53-8-685-978 (11538685978) |
| Compatible OEM Part No | 8602282 |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 46 vehicle configurations across 1 make, 2016-2024.
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 46 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | BMW | Alpina B7 | Sedan | 4.4L V8 Turbo | |
| 2019 | BMW | Alpina B7 | Sedan | 4.4L V8 Turbo | |
| 2018 | BMW | Alpina B7 | Sedan | 4.4L V8 Turbo | |
| 2020 | BMW | Alpina B7 | Sedan | 4.4L V8 Turbo | |
| 2021 | BMW | Alpina B7 | Sedan | 4.4L V8 Turbo | |
| 2022 | BMW | Alpina B7 | Sedan | 4.4L V8 Turbo | |
| 2023 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | |
| 2024 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | |
| 2019 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | |
| 2020 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | |
| 2021 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | |
| 2022 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | |
| 2020 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2019 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2021 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2022 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2023 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2018 | BMW | M550i xDrive | Sedan | 4.4L V8 Turbo | |
| 2017 | BMW | 750i xDrive | Sedan | 4.4L V8 Turbo | |
| 2016 | BMW | 750i xDrive | Sedan | 4.4L V8 Turbo | |
| 2018 | BMW | 750i xDrive | Sedan | 4.4L V8 Turbo | |
| 2019 | BMW | 750i xDrive | Sedan | 4.4L V8 Turbo | |
| 2020 | BMW | 750i xDrive | Sedan | 4.4L V8 Turbo | |
| 2022 | BMW | 750i xDrive | Sedan | 4.4L V8 Turbo | |
| 2021 | BMW | 750i xDrive | Sedan | 4.4L V8 Turbo | |
| 2021 | BMW | X7 | SUV | 4.4L V8 Turbo | |
| 2022 | BMW | X7 | SUV | 4.4L V8 Turbo | |
| 2024 | BMW | M850i xDrive | Coupe | 4.4L V8 Turbo | |
| 2021 | BMW | X5 | SUV | 4.4L V8 Turbo | |
| 2020 | BMW | X5 | SUV | 4.4L V8 Turbo | |
| 2022 | BMW | X5 | SUV | 4.4L V8 Turbo | |
| 2023 | BMW | X5 | SUV | 4.4L V8 Turbo | |
| 2019 | BMW | X5 | SUV | 4.4L V8 Turbo | |
| 2020 | BMW | X7 | SUV | 4.4L V8 Turbo | |
| 2019 | BMW | X7 | SUV | 4.4L V8 Turbo | |
| 2023 | BMW | X7 | SUV | 4.4L V8 Turbo | |
| 2024 | BMW | M850i xDrive Gran Coupe | Sedan | 4.4L V8 Turbo | |
| 2019 | BMW | M850i xDrive | Coupe | 4.4L V8 Turbo | |
| 2020 | BMW | M850i xDrive | Coupe | 4.4L V8 Turbo | |
| 2021 | BMW | M850i xDrive | Coupe | 4.4L V8 Turbo | |
| 2022 | BMW | M850i xDrive | Coupe | 4.4L V8 Turbo | |
| 2023 | BMW | M850i xDrive Gran Coupe | Sedan | 4.4L V8 Turbo | |
| 2021 | BMW | M850i xDrive Gran Coupe | Sedan | 4.4L V8 Turbo | |
| 2020 | BMW | M850i xDrive Gran Coupe | Sedan | 4.4L V8 Turbo | |
| 2022 | BMW | M850i xDrive Gran Coupe | Sedan | 4.4L V8 Turbo | |
| 2023 | BMW | M850i xDrive | Coupe | 4.4L V8 Turbo |