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

AdBlue Adapter Cable BMW F30 F31 F36 Lead Wiring Harness Loom 6841420

Product currently unavailable

Part no. 9225771

BMW Z4 Series E89 Front Bumper PDC Loom Cables Wiring Set 9225771

Product currently unavailable

BMW E90 E91 E92 E93 Wiring Loom Cable Harness 6943525

-5%

Part no. 6943525

BMW E90 E91 E92 E93 Wiring Loom Cable Harness 6943525

Product currently unavailable

Part no. 8058634

Engine Wiring BMW X3 M F97 X4 M F98 Loom Harness Ignition Module 8058634

Product currently unavailable

Part no. 8636070

BMW 3 F30 LCI 330e B48X Engine Gearbox Module Wiring Cable Loom Harness 8636070

Product currently unavailable

Part no. 9247075

BMW X1 E84 Door Wiring Harness Driver's Side Cable Loom Wiring 9247075

Product currently unavailable

Part no. 9120773

BMW E60 E61 Doors Wiring Loom Harness Co-Drivers Passengers Side 9120773

Product currently unavailable

Part no. 7471341-2

BMW F20 Front Headlight Headlamp Wiring Harness Cable Left N/S 7471341

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. 6928362-1

BMW E60 E61 LCI Front Bumper PDC Loom Cables Wiring Set 6928362

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. 6801454

BMW X5 F15 Wiring Harness Loom Cable 6801327

Product currently unavailable

Part no. 7641661

BMW 1 3 5 Series F10 F20 F30 Wiring Harness Motor Sensorsystem Module Petrol N20

Product currently unavailable

Part no. 9230554

BMW F10 F11 Seat Loom Cable Lordosis Lumbar Pump Control Front Left N/S 9230554

Product currently unavailable

Part no. 9125031

BMW 1 Series E81 E87 LCI Positive Battery Lead Cable Wiring

Product currently unavailable

Part no. 9343605

BMW F30 330e HV Accumulator Battery Clamp Pyro Fuse Auxiliary Connector 9343605

Product currently unavailable

Part no. 9337218

BMW M4 F82 F83 Front Door Wiring Loom Harness Cable Passenger Side 9337218

Product currently unavailable

Part no. 8571110

BMW G11 G12 G30 G31 G32 B57 Wiring Loom Harness Injection Injector Cable 8571110

Product currently unavailable

Part no. 6948335

BMW 1 X1 Series E81 E84 E87 RR1 Battery Lead Cable Negative IBS 6948335

Product currently unavailable

Part no. 6949081

BMW 1 3 Series E81 E82 E88 E92 Front Seat Easy Entry Adapter Wire Cable 6949081

Product currently unavailable

Part no. 7614896

Ignition Harness BMW F10 F12 F07 GT Petrol N63 Engine Ignition Wiring 7614896

Product currently unavailable

Part no. 8482313

BMW G30 Engine Wiring Loom Harness Ignition Module 8482313

Product currently unavailable

Part no. 7841704

BMW 3 Series E90 E92 M3 Throttle Body Position Hall Sensor Unit 7841706 7841704

Product currently unavailable

Part no. 7199894-3

BMW E90 E91 LCI Front Fog Light Wiring Harness Cable Plug Right O/S 7199894

Product currently unavailable

Part no. 7243562

BMW F20 F30 Sport Seat Front Heating Mat Element F21 F31 F32 7243562

Product currently unavailable

Part no. 8379231

BMW 3 5 Series E30 E34 E36 Radio Business RDS Cassette Player 9410692

Product currently unavailable

Part no. 6808605

BMW F45 Mini F60 Air Con Pipe Pressure Hose Tube Compressor Evaporator 6808605

Product currently unavailable

Part no. 8586569

BMW F20 F21 F30 F31 LCI Gearbox Transmission Harness Wiring Loom Cable 8586569

Product currently unavailable

Part no. RHD-7807198

BMW 5 SERIES E60 E61 LCI 520d N47 Engine Wiring Loom Harness DDE Manual 7807198

Product currently unavailable

Part no. 7823755

Engine Module Wiring BMW F07 GT F10 F11 Diesel N57N Injectors Harness 7823755

Product currently unavailable

Part no. E90 Wiring Loom Set PDC Rear-1

BMW 3 Series 1 E90 E90N E91 E91N LCI Wiring Loom Set PDC Rear Set Complete

Product currently unavailable

Part no. 9387151

BMW 3 F30 Hybrid 330e B48X Positive Battery Lead Cable Starterunit 9387151

Product currently unavailable

Part no. 9207846

BMW X5 Series E70 Driver Side Front Right O/S Door Cable Harness Wiring 9207841

Product currently unavailable

Part no. 6986980

BMW Z4 Series E85 Cable Loom Driver's Door Wiring Harness 6986980 6986976

Product currently unavailable

Part no. 6960000

BMW X5 Series E53 Front Bumper PDC Loom Cables Wiring Set 6960000

Product currently unavailable

Part no. 9286249

BMW 3 Series F30 F31 Rear Door Wiring Loom Cable Harness 9286249

Product currently unavailable

Part no. 7638001

BMW 1 3 Series F20 F21 F30 F31 N47N Earth Cable Battery Engine 7638001

Product currently unavailable

Part no. 9189482

BMW X3 E83 LCI Front Seat Belt Tensioner Buckle Cable Left Right N/O/S 9189482

Product currently unavailable

Part no. 7843326

BMW F10 M5 F12 M6 Ignition Engine Wiring Harness Ignition Module Cyl.5-8 7843326

Product currently unavailable

Part no. 7203248-1

BMW F10 F11 Headlight Headlamp Bi-Xenon LED Wiring Cable Right O/S 7203248

Product currently unavailable

Part no. 9380938

BMW 2 Series F45 Door Wiring Loom Harness Co-Driver's Passenger's Side 9380938

Product currently unavailable

Part no. 9313638

BMW F30 F31 F80 M3 Front Passenger Wiring Loom Harness Cables 9313638

Product currently unavailable

Part no. 8507924

Gearbox Wiring BMW F20 F30 125d 325d N47S1 Engine Loom Harness Cables 8507924

Product currently unavailable

Part no. 5A7A3B9

BMW U06 X1 U11 Gearbox Wiring Loom Transmission Cable 5A7A3B9

Product currently unavailable

Part no. 8585935

BMW F20 F23 F30 F34 F36 LCI Automatic Gearbox Wiring Loom Harness 8585935

Product currently unavailable

...

Showing 1090-1134 of 1134 products