2014-2021 BMW Electric Motor Wiring Harness / Loom 12518653789

OEM Part #: 12-51-8-653-789 (12518653789)

Electric Motor Wiring Harness / Loom 12518653789 for BMW

Actual photo

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

$26.49

Used

Donor2014 BMW i3 · 0.6L · 70k miles

SKU: 284647 · 30-Day Returns

✓ Free Same Day Shipping on orders by noon CT

Only 2 in stock — no guaranteed restock

Electric Motor Wiring Harness / Loom 12518653789 — Used (SKU 284647)

Genuine OEM Used SKU: 284647 Donor Vehicle: 2014 BMW i3 · 0.6L · 70k miles 2 photos

$26.49

30-Day Returns

Electric Motor Wiring Harness / Loom 12518653789 — Used (SKU 526114)

Genuine OEM Used SKU: 526114 Donor Vehicle: 2015 BMW i3 · 0.6L · 56k miles 3 photos

HAS A CRACKED PLUG, SEE PICTURES

$40.49

30-Day Returns

Genuine OEM — real photos
30-day returns on eligible parts
eBay Top Rated · 100,000+ positive ratings
Ships from our own indoor warehouse

This used OEM Electric Motor Wiring Harness / Loom (BMW part number 8653789, also replaces 7636973) connects the drive motor to the i3’s hybrid battery and controller. Designed for the BMW i3 and i3s equipped with the 0.6L range-extender (REX) system, it carries power and sensor signals between components. A failing loom can cause intermittent motor operation, reduced power, or drivetrain warning lights—critical for maintaining full electric drive in the compact EV.

Specifications

Specifications for Electric Motor Wiring Harness / Loom 12518653789
Fits Vehicle Model	i3 REx, i3s REx
Fits Vehicle Make	BMW
OEM Part No	12-51-8-653-789 (12518653789)
Compatible OEM Part No	7636973
Category	Wiring / Harness

Compatible Vehicles

Fits 8 vehicle configurations across 1 make, 2014-2021.

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

i3 REx 2014-2017 · 4 variants
i3s REx 2018-2021 · 4 variants

View all 8 vehicle configurations

Full vehicle fitment list for Electric Motor Wiring Harness / Loom 12518653789
Year	Make	Model	Trim	Engine
2014	BMW	i3 REx	Hatchback	0.6L l2
2016	BMW	i3 REx	Hatchback	0.6L l2
2015	BMW	i3 REx	Hatchback	0.6L l2
2017	BMW	i3 REx	Hatchback	0.6L l2
2019	BMW	i3s REx	Hatchback	0.6L l2
2018	BMW	i3s REx	Hatchback	0.6L l2
2020	BMW	i3s REx	Hatchback	0.6L l2
2021	BMW	i3s REx	Hatchback	0.6L l2