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

Volkswagen Polo 6R Engine Wiring Loom Harness 03E971612AD

Product currently unavailable

Part no. 5Q0971277

Volkswagen Golf Mk7 5G Cooling System Coupling Adapter Wiring Harness 5Q0971277

Product currently unavailable

Part no. 5N0971250AJ

Audi Q3 F3 VW Tiguan 5N Seat Alhambra Battery Negative Earth - Cable 5N0971250AJ

Product currently unavailable

Part no. 5K4971693AJ

Volkswagen Golf Mk6 Door Wiring Loom Harness Rear Left Right N/O/S 5K4971693AJ

Product currently unavailable

Part no. 7L9971104

Volkswagen Touareg 7L Rear Bumper PDC Parking Sensor Wiring Loom 7L9971104

Product currently unavailable

Part no. 7L6971095G

VW Volkswagen Touareg 7L Front Bumper PDC Parking Sensor Wire Harness 7L6971095G

Product currently unavailable

Part no. 7E0971794A

Volkswagen Transporter T5 2.0 TDi CAAA Positive Battery Cable Wire 7E0971794A

Product currently unavailable

Part no. 1J6945111T-2

Volkswagen Golf Mk4 Rear Tail Light Wiring Harness Cable Left N/S 1J6945111T

Product currently unavailable

Part no. 03F971612

VW Volkswagen Polo 1.2 TSI CBZB Engine Wiring Harness Cable Loom 03F971612

Product currently unavailable

Part no. 1T0971557AJ

Volkswagen VW Touran Door Harness Loom Cable Wiring Front Left N/S 1T0971557AJ

Product currently unavailable

Part no. 5N0971104AB

VW Volkswagen Tiguan 5N Rear Bumper PDC Sensor Unit Wiring Harness 5N0971104AB

Product currently unavailable

Part no. RHD-5NA971147EP

Volkswagen Tiguan Mk2 Rear Tailgate Fog Light Wiring Cable Left N/S 5NA971147EP

Product currently unavailable

Part no. 7E0915181K

VW Transporter T6 Negative Minus Earth HV Battery Cable Wire Lead 7E0915181K

Product currently unavailable

Part no. 1K0971120CH

Volkswagen Golf 1K Door Wiring Harness Loom Cable Front Drivers Side 1K0971120CH

Product currently unavailable

Part no. 5G0971095A

VW Volkswagen Golf Mk7 Wiring Loom PDC Front Harness Parking Sensor 5G0971095A

Product currently unavailable

Part no. 5N0971100R

Sunroof Wiring Volkswagen VW Tiguan 5N Roof Motor Cable Harness 5N0971100R

Product currently unavailable

Part no. 7H0945096J-2

Volkswagen Transporter T5 Rear Lamp Tail Light Wiring Cable Right O/S 7H0945096J

Product currently unavailable

Part no. 1K8971147K

Volkswagen Scirocco Mk3 Tailgate Boot Wiring Harness Cable Left N/S 1K8971147K

Product currently unavailable

Part no. 5H0971385F

Volkswagen Golf Mk8 CD1 Rear Seat Couch Wiring Harness Cable Loom 5H0971385F

Product currently unavailable

Part no. 7L0971771B

Volkswagen Touareg 7L Gear Selector Switch Harness 7L0971771B

Product currently unavailable

Part no. 2K5971121H

VW Caddy Maxi 2K Front Door Panel Cable Harness Passenger's Side 2K5971121H

Product currently unavailable

Part no. VW9065400105

Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105

Product currently unavailable

Part no. 1J0971121AF

Volkswagen Golf 1J Door Wiring Harness Loom Front Passenger Side 1J0971121AF

Product currently unavailable

Part no. 3G0971690

Volkswagen Passat B8 3G Door Wiring Loom Harness Rear Right O/S 3G0971690

Product currently unavailable

Part no. 03D971595CJ

VW Volkswagen Fox 5Z 1.2 CHFB Engine Wiring Loom Harness Cable Loom 03D971595CJ

Product currently unavailable

Part no. 1T0971121AC

Volkswagen VW Touran Door Harness Loom Cable Wiring Front Driver 1T0971121AC

Product currently unavailable

Part no. 3AC971121R

VW Volkswagen Passat B7 Front Door Wiring Loom Harness Cable Left N/S 3AC971121R

Product currently unavailable

Part no. 7E0971793

Volkswagen Transporter T5 T6 Battery Wire Negative Lead Cable 7E0971793

Product currently unavailable

Part no. 7H0971793B

Volkswagen Transporter T5 Minus Negative Battery Cable Wiring Mass 7H0971793B

Product currently unavailable

Part no. 1K0971558C

Volkswagen Golf Mk7 Front Door Wiring Loom Harness Passenger Side 1K0971558C

Product currently unavailable

Part no. 7E0945096T-2

VW Volkswagen Transporter T6 Rear Tail Light Wiring Harness Right O/S 7E0945096T

Product currently unavailable

Part no. 7C0945096J-2

Volkswagen Crafter SY Rear Lamp Tail Light Wiring Harness Right O/S 7C0945096J

Product currently unavailable

Part no. 1T0971693EG

VW Touran 1T Door Harness Loom Cable Wiring Rear Left Right N/O/S 1T0971693EG

Product currently unavailable

Part no. 5K0945096M-1

Volkswagen Golf Mk6 Rear Tail Light Wiring Loom Harnes Plug Right O/S 5K0945096M

Product currently unavailable

Part no. 03L972619BA

Volkswagen Golf MK6 Parking Sensor Wiring Rear Bumper Loom Cable 03L972619BA

Product currently unavailable

Part no. 6C0971085

Volkswagen Polo 6R Front Bumper Parking Sensor Wiring Loom Harness 6C0971085

Product currently unavailable

Part no. 7CA971819B

VW Crafter SY AdBlue Tank Wiring Loom 2.0 TDI Diesel 103kW 140HP 7CA971819B

Product currently unavailable

Part no. 03E971612AE

Volkswagen Polo 6R Mk5 Engine Wiring Loom Harness Cable 03E971612AE

Product currently unavailable

Part no. 2K5971557

Volkswagen Caddy Maxi Front Door Right O/S Electrical Wiring Harness 2K5971557

Product currently unavailable

Part no. 06L971627E

Volkswagen Golf R Mk7 Engine Injectors Wiring Harness 2.0 TFSI CJXB 06L971627E

Product currently unavailable

Part no. 7P0971225B

Volkswagen Touareg 7P Negative Battery Cable Wiring Loom 7P0971225B

Product currently unavailable

Part no. 03G972619KP

Volkswagen VW Touran 2.0 TDI BKD Engine Wiring Harness Loom Cable 03G972619KP

Product currently unavailable

Part no. 7E0915181N

VW Transporter T6 Negative Minus Earth HV Battery Cable Wire 7E0915181N

Product currently unavailable

Showing 298-340 of 340 products