What is the construction and purpose of wires, harnesses, and connectors?

Wires, harnesses, and connectors are elements of a car's electrical installation that connect power sources, consumers, sensors, and controllers. A typical set consists of conductive cores, insulation, covers, plugs, pins, and mounting points to the body or equipment. These parts appear in various vehicle zones, from the engine compartment to the interior and trunk lid. Their construction must correspond to the specific circuit and car equipment.

What are wires, harnesses, and connectors used for?

Wires, harnesses, and connectors are used to transmit current and control signals between car components. They are responsible for powering devices, communication between modules, and maintaining stable electrical connections. Without them, lighting, starting, charging, sensors, or onboard electronics would not work properly. Their condition also affects the speed of fault diagnosis and the reliability of installing other electrical elements.

What is the construction and function of an electrical connector in a car?

An electrical connector is an element connecting two sections of an installation or a wire to a specific vehicle component. It usually consists of a housing, contact pins, a latch, and often a seal protecting against moisture and dirt. Its function is to ensure a secure contact and the possibility of safely disconnecting the installation during service. The appropriate type of connector is important for conductivity quality, sealing, and vibration resistance.

How to choose wires, harnesses, and connectors for a specific car version?

It is safest to compare the OEM part number, interchangeable numbers, location on the vehicle, and the body and equipment version. It is also worth checking the number of pins, plug shape, harness routing, and mounting points. For elements supporting several systems, the fuel type and the presence of additional modules are also important.

What symptoms indicate wear of wires, harnesses, and connectors?

Typical symptoms include intermittent power loss, controller errors, blown fuses, unstable lighting operation, and problems with starting selected devices. In practice, insulation cracks, corrosion on contacts, and damage in bending areas are also encountered. Such signals should be immediately compared with the mounting location and the condition of the connections.

How to take care of wires, harnesses, and connectors after installation?

After installation, ensure the harness is routed correctly so it does not rub against sharp edges and is not exposed to excessive bending. It is also important to properly seat all clips, holders, and latches, and to keep the connectors clean. During periodic inspections, it is good to check the condition of the insulation and the tightness of connections in areas exposed to moisture.

Wiring Harnesses, Cables & Connectors

At the Global Parts automotive store, we offer a wide selection of original used car parts, including cables, harnesses and connectors for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The cables, harnesses and connectors we offer undergo quality control so that you can be sure that you are receiving a top-class product.

More information

Find it faster

Match to your vehicle

Make

BMW 7 Series E65 E66 Rear Seat Wiring Cable Electrical System 6913246

Product currently unavailable

Part no. 7856775

Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 5-8 Loom Valve Ignition 7856775

Product currently unavailable

Part no. 6932006

BMW 5 6 Series 1 E60 E61 E63 E64 Battery Cable Holder Mounting B Base 6932006

Product currently unavailable

Part no. 9335474

BMW X3 F25 Cables Set Wiring PDC Parking Sensor Front Bumper 9335474

Product currently unavailable

Part no. 9355462

BMW X5 F15 Bumper PDC Rear Wiring Loom Parking Sensor Cable 9355462

Product currently unavailable

Part no. 9262234

BMW 5 7 Series F01 F02 LCI F10 F11 Wiring Harness Airbag Front Left N/S 9262234

Product currently unavailable

Part no. 6935219

BMW E46 M3 Coupe Door Wiring Loom Harness Cable Driver's Side 6935219

Product currently unavailable

Part no. 9264637

BMW X5 F15 Seat Wiring Loom Cable Connector Plug Front Right O/S 9264637

Product currently unavailable

Part no. 7836163

BMW E60 E61 LCI M5 E63 M6 Generator Oil Pump Cable Harness Wiring

Product currently unavailable

Part no. 8574019

BMW F30 F32 LCI 335dX 435dX N57Z Engine Wiring Cable Loom Harness 8574019

Product currently unavailable

Part no. 9184207

BMW E90 E91 E92 E93 Negative Battery Wiring Cable Minus Pole IBS Adapter 9184207

Product currently unavailable

Part no. 9316655

Seat Wiring BMW X3 F25 X4 F26 Driver's Side Loom Cable 9316654

Product currently unavailable

Part no. 7853357

Engine Wiring BMW F87 M2 N55 Petrol Loom Module 1 Harness Cable 7853357

Product currently unavailable

Part no. 7835218

BMW 5 Series E60 M5 S85 Battery Cable Plus Pole Positive Battery SBK 7835218

Product currently unavailable

Part no. 9366338

Dashboard Wiring BMW G30 G31 Front Centre Console Loom Harness 9366338

Product currently unavailable

Part no. 8586168

Engine Wiring BMW F20 F21 F30 120dX 320dX N47N Loom Harness Cable Module 8586168

Product currently unavailable

Part no. 9491592-1

BMW F22 F23 F87 Rear Tail Light Lamp LED Wiring Loom Right O/S 9491592

Product currently unavailable

Part no. 6923700

BMW E65 Cable Harness Door Panel Card Rear Wiring Loom 6913147

Product currently unavailable

Part no. 9131766

Seat Wiring Cable BMW E81 E82 E90 E92 Front Right O/S Seat Loom Harness 9131760

Product currently unavailable

Part no. 8508654

BMW F10 F11 N47S1 Engine Injector Module Wiring Harness 8508654

Product currently unavailable

Part no. 8516253

Engine Wiring BMW F46 Mini F56 B47 Loom Harness Injection Valve Ignition 8516253

Product currently unavailable

Part no. 6787836-1

BMW E81 E87 LCI E90 LCI ABS DSC Module Pump Wiring Harness Cable 6954572

Product currently unavailable

Part no. 9357961

BMW F20 F21 LCI Front Bumper PDC Sensors Wiring Loom Harness 9357959

Product currently unavailable

Part no. 7787557

BMW 3 Series E46 M47N 320d Engine Wiring Harness Module Diesel Manual 7787557

Product currently unavailable

Part no. 7587465

IBS Cable BMW E93 Negative Battery Lead Wiring Harness Control Unit 7587465

Product currently unavailable

Part no. 9123572

BMW 5 6 Series E60 E61 E63 E64 Battery Lead Negative Adapter IBS 9123572

Product currently unavailable

Part no. 7799470-1

Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470

Product currently unavailable

Part no. 6934058

BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6934058 6907330

Product currently unavailable

Part no. 9325543

BMW F06 F10 F12 F13 M Sport Electric Parking Brake Handbrake Wiring Loom 9325543

Product currently unavailable

Part no. 9470037

Differential Locking Module BMW F40 F48 Rear Axle Control Unit ECU 9470037

Product currently unavailable

Part no. 7271909-2

BMW F10 F11 Front Headlight Wiring Harness Cable Loom Left N/S 7271909

Product currently unavailable

Part no. 9302931

BMW F01 F02 LCI Cable Loom Door Driver's Side Wiring Harness 9262859

Product currently unavailable

Part no. 9285768

BMW X3 F25 Tailgate Trunk Lid Wiring Harness Rubber Cover Right O/S 9285768

Product currently unavailable

Part no. 9210105

BMW 5 Series F07 GT Gran Turismo Door Wiring Loom Cable Harness 9210105

Product currently unavailable

Part no. 7511320

BMW 3 Series E46 Petrol Cable Alternator Starter Base B+ Wire 7511320

Product currently unavailable

Part no. 7044673-2

BMW E60 E61 LCI Headlight Wiring Harness Cable Plug Left N/S 7044673

Product currently unavailable

Part no. 6913085

BMW 3 Series E46 Saloon Cable Door Rear Left Right N/O/S Wiring Harness 6913084

Product currently unavailable

Part no. 6910597

BMW E46 Positive Battery Cable Plus Pole Lead 6910597

Product currently unavailable

Part no. 8714478

BMW F40 Door Wiring Cable Harness Loom Rear Left Right N/O/S 8714478

Product currently unavailable

Part no. 7611322

BMW F01 F02 F06 F07 F10 F11 F12 Positive Cable Battery Lead N55 Engine 7611322

Product currently unavailable

Part no. 6958138-1

BMW Z4 E85 Positive Battery Clamp Fuse Box Cable Wiring 6958138

Product currently unavailable

Part no. 9285767

BMW X3 F25 Tailgate Trunk Lid Wiring Harness Rubber Cover Left N/S 9285767

Product currently unavailable

Part no. 7328154-2

BMW F46 Rear Lamp Tillight Light Plug Socket Wiring Cable Right O/S 7328154

Product currently unavailable

Part no. 9286238

BMW F30 Door Wiring Front Passenger Door Loom Cables Harness F31 9286238

Product currently unavailable

Part no. 5A45CD4

BMW U06 X1 U11 Battery Cable Plus Positive Underfloor 5A45CD4

Product currently unavailable

Part no. 9191408

BMW X1 Series E84 Wiring Cable Loom Set Rear Door Left Right N/O/S 9191408

Product currently unavailable

Part no. 6992221

BMW F82 M4 LCI Boot Trunk Tail Wiring Harness Cable Loom 6992221 6992223

Product currently unavailable

Part no. 7111904

BMW X5 E53 Front Driver Seat Memory Electric Wiring Loom Harness 7111904

Product currently unavailable

Part no. 5A81BC5

BMW F74 Rear Door Wiring Loom Harness Cable Left Right N/O/S 5A81BC5

Product currently unavailable

Part no. 6831264

BMW 4 Series F32 Boot Trunk Lid Tailgate Wiring Loom Harness Cable Set 6831263

Product currently unavailable

Part no. 7620950

BMW 5 6 7 Series F01 F02 F10 F11 F12 Battery Earth Cable Wiring 330MM 7620950

Product currently unavailable

Part no. 6948048

BMW Z4 E85 Front Door Wiring Loom Cable Right O/S Harness 6948048

Product currently unavailable

Part no. 6972577

BMW 5 E60 E61 Wiring Loom Harness Co-Drivers Passengers Side 6982360

Product currently unavailable

Part no. 8571084

BMW F20 F21 F30 LCI Wiring Injector Loom Harness Cable Module B47 Engine 8571084

Product currently unavailable

Part no. 6948054

BMW Z4 E85 Front Door Wiring Loom Cable Harness Left N/S 6948054

Product currently unavailable

Part no. 9339279

BMW F20 F21 F30 F31 LCI Front Seat Wiring Harness Cable Driver Side 9339279

Product currently unavailable

Part no. 9339314

BMW 4 Series F83 M4 Wiring Loom Cable Seat Passenger's Side Left N/S 9339314

Product currently unavailable

Part no. 9118101

BMW 1 Series E81 E82 Driver Side Offside O/S Door Wiring Loom Harness 9118101

Product currently unavailable

Part no. 8642658

BMW G11 LCI G12 LCI G30 Earth Ground Line Cable Transmission Gearbox 8642658

Product currently unavailable

Part no. 9264636

BMW 1 3 4 F20 F30 F32 Driver Side Seat Wiring Loom Electric Harness 9264636

Product currently unavailable

Part no. 8588681

Engine Wiring BMW X3 G01 X4 G02 B57 Diesel Module 2 Loom Harness 8588681

Product currently unavailable

...

Showing 1189-1249 of 1249 products