2018-2025 BMW Stereo Receiver Head Unit Wiring Connector Plug / Pigtail Set

Stereo Receiver Head Unit Wiring Connector Plug / Pigtail Set for BMW

Actual photo

The exact part you’ll receive — not a stock photo.

$26.99

Used

Donor2020 BMW M550i xDrive · 4.4L · 49k miles

SKU: 663770 · 30-Day Returns

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Stereo Receiver Head Unit Wiring Connector Plug / Pigtail Set — Used (SKU 663770)

Genuine OEM Used SKU: 663770 Donor Vehicle: 2020 BMW M550i xDrive · 4.4L · 49k miles 2 photos

$26.99

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This is a used BMW stereo receiver head unit wiring connector plug and pigtail set, OEM part number 5A318F4. It also replaces numbers 8778991 and 9826943. This pigtail set is the wiring harness connector that plugs directly into the back of the factory radio or head unit. When the original connector is damaged or the wires are cut during an aftermarket stereo removal, this pigtail allows for a proper reconnection without splicing or soldering.

Specifications

Specifications for Stereo Receiver Head Unit Wiring Connector Plug / Pigtail Set
Fits Vehicle Model	330i, 330i xDrive, 530e, 530e xDrive, 530i, 530i xDrive, 540i, 540i xDrive, 640i xDrive Gran Turismo, 840i, 840i Gran Coupe, 840i xDrive, 840i xDrive Gran Coupe, M340i, M340i xDrive, M5, M550i xDrive, M850i xDrive, M850i xDrive Gran Coupe, X5, X7, Z4
Fits Vehicle Make	BMW
Compatible OEM Part No	5A318F4, 8778991, 9826943
Category	Audio / Video

Compatible Vehicles

Fits 136 vehicle configurations across 1 make, 2018-2025.

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.

BMW

330i 2019-2025 · 7 variants 7 with notes
330i xDrive 2019-2025 · 7 variants 7 with notes
530e 2018-2020 · 3 variants
530e xDrive 2018-2020 · 3 variants
530i 2020-2023 · 4 variants
530i xDrive 2020-2023 · 4 variants
540i 2020-2023 · 4 variants
540i xDrive 2020-2023 · 4 variants
640i xDrive Gran Turismo 2018-2019 · 2 variants
840i 2020-2024 · 10 variants
840i Gran Coupe 2020-2024 · 5 variants
840i xDrive 2020-2024 · 10 variants
840i xDrive Gran Coupe 2020-2024 · 5 variants
M340i 2020-2025 · 6 variants 6 with notes
M340i xDrive 2020-2025 · 6 variants 6 with notes
M5 2018-2022 · 5 variants
M550i xDrive 2019-2023 · 5 variants
M850i xDrive 2019-2024 · 12 variants
M850i xDrive Gran Coupe 2020-2024 · 5 variants
X5 2019-2023 · 10 variants
X7 2019-2023 · 10 variants
Z4 2019-2023 · 9 variants 9 with notes

View all 136 vehicle configurations — 35 with fitment notes

Full vehicle fitment list for Stereo Receiver Head Unit Wiring Connector Plug / Pigtail Set
Year	Make	Model	Trim	Engine	Note
2024	BMW	M340i xDrive	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2021	BMW	M340i xDrive	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2023	BMW	M340i xDrive	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2022	BMW	M340i xDrive	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2024	BMW	M340i	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2023	BMW	M340i	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2021	BMW	M340i	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2022	BMW	M340i	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2023	BMW	X7	SUV	4.4L V8 Turbo
2025	BMW	M340i xDrive	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2025	BMW	M340i	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2025	BMW	330i xDrive	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2025	BMW	330i	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2019	BMW	M5	Sedan	4.4L V8 Turbo
2021	BMW	M5	Sedan	4.4L V8 Turbo
2020	BMW	M5	Sedan	4.4L V8 Turbo
2018	BMW	M5	Sedan	4.4L V8 Turbo
2022	BMW	M5	Sedan	4.4L V8 Turbo
2023	BMW	M550i xDrive	Sedan	4.4L V8 Turbo
2019	BMW	640i xDrive Gran Turismo	Hatchback	3.0L l6 Turbo
2022	BMW	M550i xDrive	Sedan	4.4L V8 Turbo
2021	BMW	M550i xDrive	Sedan	4.4L V8 Turbo
2019	BMW	M550i xDrive	Sedan	4.4L V8 Turbo
2020	BMW	M550i xDrive	Sedan	4.4L V8 Turbo
2020	BMW	540i xDrive	Sedan	3.0L l6 Turbo
2021	BMW	540i xDrive	Sedan	3.0L l6 Turbo
2022	BMW	540i xDrive	Sedan	3.0L l6 Turbo
2023	BMW	540i xDrive	Sedan	3.0L l6 Turbo
2020	BMW	540i	Sedan	3.0L l6 Turbo
2018	BMW	640i xDrive Gran Turismo	Hatchback	3.0L l6 Turbo
2021	BMW	840i xDrive	Coupe	3.0L l6 Turbo
2024	BMW	M850i xDrive	Convertible	4.4L V8 Turbo
2023	BMW	840i xDrive	Coupe	3.0L l6 Turbo
2024	BMW	840i xDrive	Coupe	3.0L l6 Turbo
2022	BMW	840i	Coupe	3.0L l6 Turbo
2021	BMW	840i	Coupe	3.0L l6 Turbo
2020	BMW	840i	Coupe	3.0L l6 Turbo
2024	BMW	840i	Coupe	3.0L l6 Turbo
2023	BMW	840i	Coupe	3.0L l6 Turbo
2022	BMW	M850i xDrive	Convertible	4.4L V8 Turbo
2021	BMW	M850i xDrive	Convertible	4.4L V8 Turbo
2020	BMW	M850i xDrive	Convertible	4.4L V8 Turbo
2019	BMW	M850i xDrive	Convertible	4.4L V8 Turbo
2023	BMW	M850i xDrive	Convertible	4.4L V8 Turbo
2024	BMW	840i	Convertible	3.0L l6 Turbo
2022	BMW	840i xDrive	Convertible	3.0L l6 Turbo
2021	BMW	840i xDrive	Convertible	3.0L l6 Turbo
2020	BMW	840i xDrive	Convertible	3.0L l6 Turbo
2024	BMW	840i xDrive	Convertible	3.0L l6 Turbo
2023	BMW	840i xDrive	Convertible	3.0L l6 Turbo
2022	BMW	840i	Convertible	3.0L l6 Turbo
2021	BMW	840i	Convertible	3.0L l6 Turbo
2020	BMW	840i	Convertible	3.0L l6 Turbo
2023	BMW	840i	Convertible	3.0L l6 Turbo
2023	BMW	540i	Sedan	3.0L l6 Turbo
2022	BMW	540i	Sedan	3.0L l6 Turbo
2021	BMW	540i	Sedan	3.0L l6 Turbo
2024	BMW	330i xDrive	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2023	BMW	330i xDrive	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2020	BMW	330i xDrive	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2022	BMW	330i xDrive	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2021	BMW	330i xDrive	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2019	BMW	330i xDrive	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2021	BMW	330i	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2020	BMW	330i	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2022	BMW	330i	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2019	BMW	330i	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2022	BMW	530i xDrive	Sedan	2.0L l4 Turbo
2023	BMW	330i	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2024	BMW	330i	Sedan	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2020	BMW	M340i	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2021	BMW	530i xDrive	Sedan	2.0L l4 Turbo
2020	BMW	530i xDrive	Sedan	2.0L l4 Turbo
2023	BMW	530i xDrive	Sedan	2.0L l4 Turbo
2022	BMW	530i	Sedan	2.0L l4 Turbo
2021	BMW	530i	Sedan	2.0L l4 Turbo
2020	BMW	530i	Sedan	2.0L l4 Turbo
2023	BMW	530i	Sedan	2.0L l4 Turbo
2020	BMW	530e xDrive	Sedan	2.0L l4 Turbo
2020	BMW	Z4	Convertible	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2023	BMW	Z4	Convertible	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2022	BMW	Z4	Convertible	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2020	BMW	Z4	Convertible	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2019	BMW	Z4	Convertible	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2021	BMW	Z4	Convertible	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2020	BMW	X7	SUV	4.4L V8 Turbo
2023	BMW	Z4	Convertible	2.0L l4 Turbo	For vehicles WITH option code S6U3A
2022	BMW	X7	SUV	4.4L V8 Turbo
2021	BMW	X7	SUV	4.4L V8 Turbo
2019	BMW	X7	SUV	4.4L V8 Turbo
2023	BMW	X5	SUV	4.4L V8 Turbo
2021	BMW	840i Gran Coupe	Sedan	3.0L l6 Turbo
2022	BMW	M850i xDrive Gran Coupe	Sedan	4.4L V8 Turbo
2020	BMW	M850i xDrive Gran Coupe	Sedan	4.4L V8 Turbo
2021	BMW	M850i xDrive Gran Coupe	Sedan	4.4L V8 Turbo
2023	BMW	M850i xDrive Gran Coupe	Sedan	4.4L V8 Turbo
2022	BMW	840i xDrive Gran Coupe	Sedan	3.0L l6 Turbo
2020	BMW	840i xDrive Gran Coupe	Sedan	3.0L l6 Turbo
2021	BMW	840i xDrive Gran Coupe	Sedan	3.0L l6 Turbo
2023	BMW	840i xDrive Gran Coupe	Sedan	3.0L l6 Turbo
2024	BMW	840i xDrive Gran Coupe	Sedan	3.0L l6 Turbo
2022	BMW	840i Gran Coupe	Sedan	3.0L l6 Turbo
2020	BMW	840i Gran Coupe	Sedan	3.0L l6 Turbo
2023	BMW	840i Gran Coupe	Sedan	3.0L l6 Turbo
2023	BMW	X5	SUV	3.0L l6 Turbo
2024	BMW	840i Gran Coupe	Sedan	3.0L l6 Turbo
2022	BMW	M850i xDrive	Coupe	4.4L V8 Turbo
2021	BMW	M850i xDrive	Coupe	4.4L V8 Turbo
2020	BMW	M850i xDrive	Coupe	4.4L V8 Turbo
2019	BMW	M850i xDrive	Coupe	4.4L V8 Turbo
2024	BMW	M850i xDrive	Coupe	4.4L V8 Turbo
2023	BMW	M850i xDrive	Coupe	4.4L V8 Turbo
2024	BMW	M850i xDrive Gran Coupe	Sedan	4.4L V8 Turbo
2021	BMW	X5	SUV	3.0L l6 Turbo
2021	BMW	X5	SUV	4.4L V8 Turbo
2022	BMW	X5	SUV	3.0L l6 Turbo
2019	BMW	X5	SUV	3.0L l6 Turbo
2020	BMW	X5	SUV	3.0L l6 Turbo
2019	BMW	530e xDrive	Sedan	2.0L l4 Turbo
2018	BMW	530e xDrive	Sedan	2.0L l4 Turbo
2018	BMW	530e	Sedan	2.0L l4 Turbo
2020	BMW	530e	Sedan	2.0L l4 Turbo
2019	BMW	530e	Sedan	2.0L l4 Turbo
2020	BMW	M340i xDrive	Sedan	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2022	BMW	Z4	Convertible	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2022	BMW	840i xDrive	Coupe	3.0L l6 Turbo
2022	BMW	X5	SUV	4.4L V8 Turbo
2022	BMW	X7	SUV	3.0L l6 Turbo
2021	BMW	X7	SUV	3.0L l6 Turbo
2019	BMW	X7	SUV	3.0L l6 Turbo
2020	BMW	X7	SUV	3.0L l6 Turbo
2023	BMW	X7	SUV	3.0L l6 Turbo
2020	BMW	X5	SUV	4.4L V8 Turbo
2019	BMW	X5	SUV	4.4L V8 Turbo
2021	BMW	Z4	Convertible	3.0L l6 Turbo	For vehicles WITH option code S6U3A
2020	BMW	840i xDrive	Coupe	3.0L l6 Turbo