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Trailer Wiring Harnesses & Cable

Trailer Wiring Harnesses & Cable for Canadian drivers — 212 products in stock. Prices from $29 to $155 CAD. Free shipping across Canada on every order, with prices in Canadian dollars.Everything in this collection is grouped from our live catalogue, so the count above reflects...

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Explore North Trail Auto Accessories

Discover premium automotive accessories designed for Canadian drivers. From comprehensive car care products to sleek interior upgrades, our collection enhances your vehicle’s comfort, style, and functionality with durable, trusted solutions.

Shop confidently with free shipping on all orders across Canada. Choose from phone mounts, organizers, and detailing tools tailored to elevate your everyday driving experience with quality and convenience.

WOLFWILL front plug view showing secure fit and easy hookup

WOLFWILL

WOLFWILL 7-Pin Trailer Plug Wiring Harness 10FT – Weatherproof Heavy-Duty 7-Way Cord for Lights & Brakes

$82.25

Free shipping · 30-day easy returns

Oyviny front 4-pin connector showing clean plug and quick connection benefit

Oyviny

Oyviny 4-Pin Trailer Wiring Harness for Dodge Ram/Dakota 78" Lead — Plug-and-Play OEM-Style 4-Flat Connector

$67.01

Free shipping · 30-day easy returns

Oyviny front connector and plug showing fit and easy connection benefit

Oyviny

Oyviny 4-Way Trailer Wiring Harness 55336 for Honda/Acura (1997–2006) — Plug-and-Play, Corrosion-Resistant

$70.82

Free shipping · 30-day easy returns

Kefly front view of 7-pin and 4-pin plug connector showing durable housing and easy connection benefit

Kefly

Kefly Trailer Plug Connector 7-Pin & 4-Pin Adapter — Waterproof ABS, Impact-Resistant

$57.49

Free shipping · 30-day easy returns

MECMO front view of 4-pin connector showing secure plug fit

MECMO

MECMO 4-Pin Coiled Trailer Wire Extension, 7.5ft Retractable 4-Way with PU Jacket

$57.49

Free shipping · 30-day easy returns

MECMO front view of 7-pin to 4-pin adapter showing plug and cord length for easy hookup

MECMO

MECMO USCAR 7-to-4 Pin Trailer Harness 41in T-Adapter — 4-Pin Flat Outlet, 16 AWG Copper

$65.11

Free shipping · 30-day easy returns

oyviny converter front view showing compact housing and mounting tabs for easy fitting

Oyviny

Oyviny 2-to-3-Wire Splice-In Trailer Tail Light Converter, Pre-Stripped Leads & Solid-State Brake/Turn Separation

$59.39

Free shipping · 30-day easy returns

MK-Morzon front view of 7-way connector showing robust housing and easy hookup benefit

MK-Morzon

MK-Morzon 7-Way Trailer Wiring Connector Plug 56055632AC for Dodge Ram Jeep — OEM Fit, Heavy-Duty Sealed Contacts

$63.20

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LLANNDER front connector view showing dual 7-pin and 4-pin ports and secure fit benefit

LLANNDER

LLANNDER Trailer Brake Harness for Ford F-150 / F-250 / F-350 2015–2023 — 7-pin Round & 4-pin Flat, Weatherproof

$62.44

Free shipping · 30-day easy returns

Anlseiod front view connector showing plug face and mounting points for reliable fit

Anlseiod

Anlseiod Trailer Tow Harness Connector for Ford F-150/F-250/F-350 (2015–2023) — 4/7‑Pin Gold‑Plated Contacts, Reinforced Housing

$63.20

Free shipping · 30-day easy returns

Oyviny front connector showing 4-pin plug and easy-fit benefit

Oyviny

Oyviny 4-Pin Trailer Wiring Harness for 2010–2017 GMC Terrain & Chevrolet Equinox — 4‑Flat Plug, 80" Lead

$65.11

Free shipping · 30-day easy returns

Zhushan front view mounted bracket showing both connectors and easy access benefit

Zhushan

Zhushan 7-Way & 4-Pin Trailer Plug Kit with Bracket — Fits 2009–2023 Trucks, Weatherproof Copper Contacts

$61.11

Free shipping · 30-day easy returns

FLETERGIB front connector showing plug, ensuring secure trailer connection

FLETERGIB

FLETERGIB 26ft 4-Pin 5-Wire Trailer Wiring Harness — PVC-Jacketed 16AWG Waterproof Y-Shaped

$70.82

Free shipping · 30-day easy returns

Fastway front view of coiled 6ft cable and switch showing easy attachment benefit

Fastway

Fastway Zip 6ft Breakaway Coiled Cable with Switch - Red, Coated Safety Cable

$62.80

Free shipping · 30-day easy returns

CURT front packaging showing two vinyl-coated safety cables and product labeling for easy identification and protection

CURT

CURT Vinyl-Coated Trailer Safety Cables 43-7/8 in — 3/8 in Snap Hooks, 3,500 lb (2-Pack)

$65.11

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CURT front view of 58092 connector pair showing plug and socket, durable connection benefit

CURT

CURT 6-Pin Round Wiring Connectors Matched Pair — Vehicle & Trailer Side, Die-Cast Metal Locking Tabs

$60.35

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CURT front connector view showing 4-pin plug and ergonomic grip for easy towing

CURT

CURT 4-Way Trailer Wiring Harness for Chevrolet & GMC Pickups — Vehicle-Side 55315, Plug-and-Play with Dust Cover

$59.41

Free shipping · 30-day easy returns

Oyviny front view of USCAR 7-pin to 4-pin harness showing plug benefits

Oyviny

Oyviny USCAR 7‑Pin to 4‑Pin Trailer Wiring Harness — 41in 16AWG Pure Copper Adapter for LED Tailgate Light Bars

$65.11

Free shipping · 30-day easy returns

Twippo front packaging showing ten 2-pin waterproof connector sets and shrink kit for easy installation

Twippo

Twippo 14 AWG 2-Pin Waterproof Automotive Connectors, 10 Sets with 40 Heat-Shrink Sealed

$59.20

Free shipping · 30-day easy returns

MECMO front view molded plug showing secure connection benefit

MECMO

MECMO 4-Way Trailer Wiring Harness 4-Pin Flat 20ft – 18AWG Pure Copper, Weatherproof Jacket

$63.20

Free shipping · 30-day easy returns

BEST CONNECTIONS front view of 5-way 25ft cable showing robust jacket and connector for durable towing

BEST CONNECTIONS

BEST CONNECTIONS 5-Way Trailer Wire 14 AWG 25ft – Heavy-Duty, Weatherproof, Color-Coded 5-Conductor Cable

$57.41

Free shipping · 30-day easy returns

MECMO front view of 7-way socket showing clear connection and easy access

MECMO

MECMO 4-to-7 Pin Trailer Adapter — 4-Way Flat to 7-Way Round with Mounting Bracket, Tin-Plated Contacts

$50.44

Free shipping · 30-day easy returns

TrailesHom front view 7-pin plug showing secure connection and durability

TrailesHom

TrailesHom 7-Wire 7-Pin Trailer Adapter Cord 8ft — Heavy-Duty, Weather-Resistant RV Wiring Harness

$58.61

Free shipping · 30-day easy returns

CXTM front connector showing sealed plug and secure fit benefit

CXTM

CXTM 7-Way Trailer Extension Cord 1 ft — Molded 7-Pin Wiring Harness, Weather‑Resistant Copper Conductors

$53.68

Free shipping · 30-day easy returns

Oyviny front plug connector showing 4-flat outlet and rugged housing benefit

Oyviny

Oyviny 4-Pin Trailer Wiring Harness 56325 for GMC Acadia/Cadillac XT5 XT6 — 77" Plug-and-Play 4-Flat with Dust Cover

$51.96

Free shipping · 30-day easy returns

Dazakoot front view socket showing pin layout and easy connection benefit

Dazakoot

Dazakoot 7-Way Round Trailer Plug & Vehicle-Side Socket — SAE J560 Compatible, Zinc Die-Cast with Dust Cover

$53.68

Free shipping · 30-day easy returns

Oyviny front connector plug showing secure fit and easy hookup

Oyviny

Oyviny 4-Way Coiled Trailer Extension Cable 5 ft Stretchable — 18AWG PU-Sheathed Weather-Resistant

$51.77

Free shipping · 30-day easy returns

MECMO front view of 7-way connector showing durable housing and functionality

MECMO

MECMO 7-Pin RV Trailer Connector Kit — Male & Female 7-Way Blade, Heavy-Duty Nylon & Brass, Waterproof Grommet

$51.77

Free shipping · 30-day easy returns

CZC AUTO front 4-way flat connector showing secure plug benefit

CZC AUTO

CZC AUTO 25ft 4‑Pin 5‑Wire Trailer Wiring Harness — 18 AWG Pure Copper, Nylon Sleeve for Dual Taillights

$53.68

Free shipping · 30-day easy returns

MECMO molded female socket front view showing secure fit and easy hookup

MECMO

MECMO 4-Pin Trailer Wiring Harness — 10ft Female 18AWG, Heavy-Duty Color-Coded

$55.51

Free shipping · 30-day easy returns

Agrieyes CT012 front view showing compact converter and connectors, simplifies wiring

Agrieyes

Agrieyes Trailer Light Converter CT012 — 2-to-3-Wire Converter for Dinghy Towing, Weather-Resistant

$55.58

Free shipping · 30-day easy returns

MECMO front connector view showing 4-way flat plug and secure fit benefit

MECMO

MECMO 4-Way Flat Trailer Wiring Harness for Chevy S-10, GMC Sonoma & Isuzu Hombre (1998–2004) — Plug-in T-Connector, Weather-Resis

$53.68

Free shipping · 30-day easy returns

Oyviny front view of USCAR 7-pin socket showing secure fit and easy plug-in

Oyviny

Oyviny USCAR 7-Pin Trailer Connector Wiring Harness 16-Inch OEM-Style — 12/16 AWG Pure Copper, Nylon Flex Tubing

$52.35

Free shipping · 30-day easy returns

CURT adapter front view showing secure plug and quick connect benefit

CURT

CURT 7-Way RV Blade to 5-Way Flat Trailer Wiring Adapter — Black Molded Plastic, Ergonomic Grip

$55.77

Free shipping · 30-day easy returns

CURT 51362 front connector showing vehicle plug and quick benefits

CURT

CURT Quick Plug Trailer Brake Controller Wiring Harness for Toyota & Lexus — 24 in, 12‑Gauge

$50.19

Free shipping · 30-day easy returns

CURT 58220 front view showing die-cast housing and spring-loaded cover for protection

CURT

CURT 7-Way RV Blade Vehicle-Side Wiring Socket 58220 — Die-Cast Metal, Weather-Resistant 7-Pin Connector

$53.68

Free shipping · 30-day easy returns

CURT 58170 front view socket showing durable steel housing and secure connection

CURT

CURT 7-way Round Trailer Wiring Socket 58170 — Vehicle-Side Die-Cast with Spring Dust Cover

$53.68

Free shipping · 30-day easy returns

CURT 57041 front view showing adapter body and plug for quick connection

CURT

CURT 7-Way Round to 4-Way Flat Trailer Wiring Adapter — 7-to-4 Converter, Plug-and-Play Black Plastic

$53.30

Free shipping · 30-day easy returns

CURT front view of adapter showing 7-way blade inlet and 6-way round outlet benefit easy connection

CURT

CURT 7-Way RV Blade to 6-Way Round Trailer Wiring Adapter, Center-Pin Auxiliary Power, Molded Housing

$52.06

Free shipping · 30-day easy returns

Oyviny 7-way round plug front view showing solid connection and easy grip

Oyviny

Oyviny 7-Pin Round to 4-Way Flat Trailer Wiring Adapter — Heavy-Duty Zinc Die-Cast, Ergonomic Handle

$51.77

Free shipping · 30-day easy returns