BMW X3/X4 Engine Valvetronic Wiring Harness 12518658840

OEM Part #: 12-51-8-658-840 (12518658840)

Engine Valvetronic Wiring Harness 12518658840 for BMW

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This Engine Valvetronic Wiring Harness is a factory-original OEM part designed for seamless compatibility with BMW X4 (2019-2023) and BMW X3 (2018-2022) models. This wiring harness is integral to the Valvetronic system, facilitating precise control of the engine's intake valves, optimizing power delivery and fuel efficiency. Common issues such as poor throttle response or engine warning lights may stem from a damaged or worn wiring harness; installing this genuine part restores proper functionality. The OEM part number is 8658840, ensuring a perfect fit and reliable performance. Trust in this authentic wiring harness to help maintain your BMW's peak condition.

Specifications

Specifications for Engine Valvetronic Wiring Harness 12518658840
Fits Vehicle Model	X3, X4
Fits Vehicle Make	BMW
OEM Part No	12-51-8-658-840 (12518658840)
Category	Wiring / Harness

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 Valvetronic Wiring Harness 12518658840
Year	Make	Model	Trim	Engine
2018	BMW	X3	SUV	2.0L l4 Turbo
2019	BMW	X3	SUV	2.0L l4 Turbo
2019	BMW	X4	SUV	2.0L l4 Turbo
2020	BMW	X3	SUV	2.0L l4 Turbo
2020	BMW	X4	SUV	2.0L l4 Turbo
2021	BMW	X3	SUV	2.0L l4 Turbo
2021	BMW	X4	SUV	2.0L l4 Turbo
2022	BMW	X3	SUV	2.0L l4 Turbo
2022	BMW	X4	SUV	2.0L l4 Turbo
2023	BMW	X4	SUV	2.0L l4 Turbo

BMW X3/X4 Engine Valvetronic Wiring Harness 12518658840

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Specifications

Compatible Vehicles

BMW