2019-2024 BMW 840i/840i xDrive/M850i xDrive/Z4 Alarm Siren 65759891409
OEM Part #: 65-75-9-891-409 (65759891409)
Actual photo
The exact part you’ll receive — not a stock photo.
$32.49
Used
Donor2019 BMW Z4 · 2.0L · 34k miles
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Genuine OEM Used
SKU: 596934
Donor Vehicle: 2019 BMW Z4 · 2.0L · 34k miles
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$32.49
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Used BMW Alarm Siren, OEM part number 9891409, also replaces 9461756. This genuine used unit is the factory anti-theft siren module that emits the audible warning during an alarm activation or when the vehicle senses a break-in attempt. When the siren fails, common symptoms include a silent alarm, no chirp upon locking, or a persistent "Alarm System Malfunction" warning on the dashboard.
Specifications
| Fits Vehicle Model | 840i, 840i xDrive, M850i xDrive, Z4 |
| Fits Vehicle Make | BMW |
| OEM Part No | 65-75-9-891-409 (65759891409) |
| Compatible OEM Part No | 9461756 |
| Category | Siren / Horn |
Compatible Vehicles
Fits 25 vehicle configurations across 1 make, 2019-2024.
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 25 vehicle configurations — 25 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2020 | BMW | Z4 | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2021 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | For vehicles WITH option code S302A |
| 2020 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | For vehicles WITH option code S302A |
| 2019 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | For vehicles WITH option code S302A |
| 2024 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | For vehicles WITH option code S302A |
| 2023 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | For vehicles WITH option code S302A |
| 2022 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2021 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2020 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2024 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2023 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2022 | BMW | 840i | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2021 | BMW | 840i | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2020 | BMW | 840i | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2023 | BMW | 840i | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2024 | BMW | 840i | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2022 | BMW | M850i xDrive | Convertible | 4.4L V8 Turbo | For vehicles WITH option code S302A |
| 2022 | BMW | Z4 | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2022 | BMW | Z4 | Convertible | 2.0L l4 Turbo | For vehicles WITH option code S302A |
| 2021 | BMW | Z4 | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2023 | BMW | Z4 | Convertible | 3.0L l6 Turbo | For vehicles WITH option code S302A |
| 2020 | BMW | Z4 | Convertible | 2.0L l4 Turbo | For vehicles WITH option code S302A |
| 2019 | BMW | Z4 | Convertible | 2.0L l4 Turbo | For vehicles WITH option code S302A |
| 2021 | BMW | Z4 | Convertible | 2.0L l4 Turbo | For vehicles WITH option code S302A |
| 2023 | BMW | Z4 | Convertible | 2.0L l4 Turbo | For vehicles WITH option code S302A |