BMW Engine Wiring Harness (MODULE 1) 12518636055

OEM Part #: 12-51-8-636-055 (12518636055)

Engine Wiring Harness (MODULE 1) 12518636055 for BMW

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Engine / Transmission Module Wiring Harness

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The Engine Wiring Harness (Module 1) is a critical component located within the engine bay, serving as the central nerve system for electrical connections between various engine sensors and control modules. OEM part number 12518636055 ensures a precise fit for compatibility with BMW models including the 430i xDrive, 430i xDrive Gran Coupe (2017-2020), 330i xDrive (2017-2018), and 230i xDrive, 330i GT xDrive (2017-2019). This harness plays a vital role in transmitting signals that regulate engine performance and efficiency. Common issues such as frayed wires, poor connectivity, or damage can lead to engine misfires or diagnostic trouble codes (DTCs). Replace it to restore full functionality. Alternative terms include engine loom or wiring harness.

Specifications

Specifications for Engine Wiring Harness (MODULE 1) 12518636055
Fits Vehicle Model	230i xDrive, 330i GT xDrive, 330i xDrive, 430i xDrive, 430i xDrive Gran Coupe
Fits Vehicle Make	BMW
OEM Part No	12-51-8-636-055 (12518636055)
Compatible OEM Part No	12-51-8-636-055
Category	Wiring / Harness

Compatible Vehicles

Fits 23 vehicle configurations across 1 make, 2017-2020.

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

230i xDrive 2017-2019 · 4 variants
330i GT xDrive 2017-2019 · 3 variants
330i xDrive 2017-2018 · 4 variants
430i xDrive 2017-2020 · 8 variants
430i xDrive Gran Coupe 2017-2020 · 4 variants

View all 23 vehicle configurations

Full vehicle fitment list for Engine Wiring Harness (MODULE 1) 12518636055
Year	Make	Model	Trim	Engine
2017	BMW	230i xDrive	Convertible	2.0L l4 Turbo
2017	BMW	230i xDrive	Coupe	2.0L l4 Turbo
2017	BMW	330i GT xDrive	Hatchback	2.0L l4 Turbo
2017	BMW	330i xDrive	Sedan	2.0L l4 Turbo
2017	BMW	330i xDrive	Wagon	2.0L l4 Turbo
2017	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2017	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2017	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2018	BMW	230i xDrive	Coupe	2.0L l4 Turbo
2018	BMW	330i GT xDrive	Hatchback	2.0L l4 Turbo
2018	BMW	330i xDrive	Sedan	2.0L l4 Turbo
2018	BMW	330i xDrive	Wagon	2.0L l4 Turbo
2018	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2018	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2018	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2019	BMW	230i xDrive	Coupe	2.0L l4 Turbo
2019	BMW	330i GT xDrive	Hatchback	2.0L l4 Turbo
2019	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2019	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2019	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo
2020	BMW	430i xDrive	Convertible	2.0L l4 Turbo
2020	BMW	430i xDrive	Coupe	2.0L l4 Turbo
2020	BMW	430i xDrive Gran Coupe	Hatchback	2.0L l4 Turbo