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Shop Trailer Wiring

Trailer Wiring

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Showing 1 - 34 of 322 Results

SCA

SCA Trailer Wire 10m 7 Core

$43.99 ^{^}

(65)

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SCA

SCA Trailer Wire 5 Core 10m

$40.99 ^{^}

(26)

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SCA

SCA Trailer Wire 2m 7 Core

$11.99 ^{^}

(17)

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SCA

SCA Trailer Wire 2m 5 Core

$9.29 ^{^}

(13)

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SCA

SCA Trailer Wire 1m 7 Core

$8.29 ^{^}

(4)

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Narva

Narva Trailer Cable - 2.5mm, 10m, 5 Core

$34.99 ^{^}

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Narva

Narva Trailer Cable - 2.5mm, 6m, 5 Core

$24.99 ^{^}

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Sales Ends Sunday
19th July 2026
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TAG

TAG Direct Fit Wiring Harness to suit GM Colorado 08-12 With Relay Isuzu D-Max + Mu-X 08-On - UNT285

$69.99 ^{^}

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TAG

TAG Pulse Complete 7 Pin Flat Socket Wiring Kit - UNT022

$49.99 ^{^}

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TAG

TAG Universal Towbar Wiring Harness 12/24V ECU - UNTEC2W

$149.99 ^{^}

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Sunrise

SUNRISE 2 Core Electrical Cable Heavy Duty 4mm, 10 meter - C2C10HD4

$49.99 ^{^}

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TAG

TAG Red Anderson Plug Kit (ESC Wiring) 30 Amp 8m - UNTE002

$129.99 ^{^}

(1)

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Sunrise

SUNRISE 2 Core Electrical Cable 2mm, Per meter - C2CLM

$3.99 ^{^}

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Trailer Vision

Trailer Vision 7 Pin Flat Tornado Trailer Plug With Cover - TV7GS

$19.99 ^{^}

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BRINK

Brink Towbar Wiring Harness to suit BMW 3, 5 Sedan, 5 Touring, X3 (F25) and X4 (F26) - BR-703513

$299.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Toyota Hilux 08/08-On & 10/2015-On - UNT278

$149.99 ^{^}

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Sunrise

SUNRISE 7 Core Electrical Cable 4mm, 10 meter - C7C10HD4

$89.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Mazda CX-5 Wagon KE 2/12 - On - UNT311

$299.99 ^{^}

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TAG

TAG 7 Pin Flat Car Plug Socket - UNT032

$11.99 ^{^}

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Sunrise

SUNRISE 2 Core Electrical Cable Heavy Duty 4mm, Per meter - C2CLMHD4

$5.99 ^{^}

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Trailer Vision

Trailer Vision Duo 7 Pin Flat Trailer Socket With 50Amp Connecotor Cover - TV-14569-7-50

$44.99 ^{^}

(1)

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TAG

TAG Direct Fit Wiring Harness to suit Nissan Navara NP300 Ute - UNT334

$69.99 ^{^}

(1)

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TAG

TAG In Line Fuse Holder with Blade Fuse 12V 30 Amp 10 Pack Water Resistant - UNTE004

$54.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Mitsubishi NS Pajero With Ecu - UNT268

$249.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Toyota Hilux 10/15-On With Ecu - UNT335

$349.00 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit VW Amarok Canbus Trailer Prep 09/2010-On - BR-756765

$349.00 ^{^}

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Narva

Narva 7 Core Trailer Wire - 10A, 30m, 3mm

$239.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Dual Voltage Smart 7 Universal - 12 Volt Only - - UNT300

$179.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Nissan Navara D40 - UNT254

$74.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Ford BA,BF Sed/Wag with Rev Sens - UNT201RS

$129.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit GM Commodore VT - UNT208

$44.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Ford Ranger / Ma Bt50 07-On - UNT264

$129.99 ^{^}

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TAG

TAG Direct Fit Wiring Harness to suit Toyota Hiace Van - UNT226

$69.99 ^{^}

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Sunrise

SUNRISE 7 Core Electrical Cable 4mm, Per meter - C7CLMHD4

$9.99 ^{^}

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Showing 1 - 34 of 322 Results

Discover Our SUPER Range of Trailer Plug Wiring

Trailer plug wiring connects your vehicle’s electrical system to your trailer, allowing lights and other functions to operate together. A correctly connected wiring setup helps ensure brake lights, indicators, and tail lights respond as expected when towing. Checking your wiring before each trip can help identify any faults or loose connections.

Understanding trailer wiring setups

Trailer wiring systems typically use multi-core cables, such as 5-core or 7-core wiring, depending on the number of electrical functions required. These wires connect to trailer plugs that match the socket on your vehicle. Choosing the correct wiring configuration helps ensure all lights and components operate correctly together.

Options to suit different setups

Our range includes trailer wiring cable in different lengths, such as shorter lengths for compact setups and longer options like 10 metres for larger trailers. We also offer complete wiring harnesses designed for direct fitment, making installation easier for certain trailer types. Selecting the right cable length and type helps ensure wiring can reach all required components without strain.

Choosing the right wiring components

When selecting trailer wiring, it’s important to match the plug type and wiring configuration to your vehicle and trailer. Checking the number of pins on your vehicle socket and ensuring compatibility with your trailer plug can help avoid connection issues. If you’re replacing existing wiring, using your current setup as a reference can help ensure the new components match correctly.

Shop trailer plug wiring at Supercheap Auto

Explore our range of trailer wiring, cables, and harnesses online or visit your local Supercheap Auto store to find a suitable option for your trailer. With options available for different trailer types and wiring setups, it’s easier to find a match for your needs. If you're unsure which wiring setup you need, our team can help based on your trailer and vehicle connection type, and bringing details such as plug type or cable length can make selection easier.

Frequently Asked Questions - Trailer Plug Wiring

How do I check trailer wiring?

Start with a visual inspection of the wiring for damage, loose connections, or exposed wires. Connect the trailer to your vehicle and check that all lights, including brake, indicator, and tail lights, are working as expected. If a fault is found, inspect connections, plugs, and fuses to isolate the issue. For more detailed guidance, check out our DIY guide on how to replace trailer wiring and lights.

How do I protect trailer wiring from water and damage?

Using sealed connectors, protective coverings, and routing wiring away from moving parts can help reduce exposure to water and damage. Covering connections with suitable materials such as heat shrink or conduit can also help protect exposed sections. Regular checks can help identify worn or damaged areas early.

What type of trailer wiring do I need?

The type of wiring required depends on your trailer setup and how many functions need to be connected. Common setups include 5-core or 7-core wiring, depending on the number of lights and accessories in use. Checking your existing wiring or plug type can help determine the most suitable option.

Shop Trailer Wiring

Trailer Wiring

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Filter by Available In Store

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Discover Our SUPER Range of Trailer Plug Wiring

Understanding trailer wiring setups

Frequently Asked Questions - Trailer Plug Wiring

How do I check trailer wiring?

How do I protect trailer wiring from water and damage?

What type of trailer wiring do I need?