2018-2023 BMW X3/X4 Engine Wiring Harness (MODULE 2) 12518658836

OEM Part #: 12-51-8-658-836 (12518658836)

Engine Wiring Harness (MODULE 2) 12518658836 for BMW

Actual photo

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

$78.99

As Is

Donor2019 BMW X3 · 2.0L

SKU: 623831 · Final Sale · No Returns

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Only 2 in stock — no guaranteed restock

Engine Wiring Harness (MODULE 2) 12518658836 — As Is (SKU 623831)

Genuine OEM As Is SKU: 623831 Donor Vehicle: 2019 BMW X3 · 2.0L 3 photos

HAS A CUT PLUG, SEE PICTURES

$78.99

Final Sale · No Returns

Engine Wiring Harness (MODULE 2) 12518658836 — Used (SKU 705723)

Genuine OEM Used SKU: 705723 Donor Vehicle: 2019 BMW X3 · 2.0L 2 photos

$129.99

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For your BMW X3 or X4 with the 2.0L turbocharged inline-four engine, this used genuine BMW engine wiring harness (module 2) carries OEM part number 8658836. As the main electrical backbone for sensors and actuators, a failing harness can produce intermittent stalling, misfires, or check-engine lights.

Specifications

Specifications for Engine Wiring Harness (MODULE 2) 12518658836
Fits Vehicle Model	X3, X4
Fits Vehicle Make	BMW
OEM Part No	12-51-8-658-836 (12518658836)
Category	Other

Compatible Vehicles

Fits 10 vehicle configurations across 1 make, 2018-2023.

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

X3 2018-2022 · 5 variants
X4 2019-2023 · 5 variants

View all 10 vehicle configurations

Full vehicle fitment list for Engine Wiring Harness (MODULE 2) 12518658836
Year	Make	Model	Trim	Engine
2018	BMW	X3	SUV	2.0L l4 Turbo
2020	BMW	X4	SUV	2.0L l4 Turbo
2023	BMW	X4	SUV	2.0L l4 Turbo
2022	BMW	X4	SUV	2.0L l4 Turbo
2021	BMW	X3	SUV	2.0L l4 Turbo
2019	BMW	X3	SUV	2.0L l4 Turbo
2021	BMW	X4	SUV	2.0L l4 Turbo
2020	BMW	X3	SUV	2.0L l4 Turbo
2022	BMW	X3	SUV	2.0L l4 Turbo
2019	BMW	X4	SUV	2.0L l4 Turbo