RV Trailer Connectors & Wiring
Every light, brake, and charge signal between your tow vehicle and trailer funnels through a single connector, so a corroded pin or the wrong plug is where most towing headaches begin. This category covers the common connector styles — 4-way flat, 5-pin, 6-way round, and 7-way RV blade — along with the brand-fit pigtails, adapters, and custom harnesses that bridge whatever doesn't line up.
86 products
RV Pigtails Jayco 7-to-6 Way Pigtail | Black, 36 in.
$62.99
Draw-Tite T-One Trailer Wiring Connector | Hyundai Santa Fe & Kia Forte 4-Door Sedan
$58.99
Tekonsha T-One Connector | 4-Way Flat w/ Converter, 2004-2010 Toyota Sienna
$58.99
Hopkins Endurance Flex-Coil 4-Pole to 4-Pole Adapter | Nite-Glow
$53.99
Tekonsha T-One T-Connector Wiring Harness | 4-Way Flat, 2007-2012 GMC Acadia
$53.99
Dexter Axle Brake Magnet Kit | K71-105-00 Electric Trailer Brake Replacement
$50.99
Draw-Tite T-One Trailer Wiring Harness | 4-Flat Connector, Plug-and-Play
$50.99
Hopkins Endurance Flex-Coil HD Wiring Adapter | 3-Ft Extension, Nite-Glow
$50.99
Tekonsha T-One 4-Way Flat Trailer Wiring Harness | Buick Enclave, Chevy Traverse, GMC Acadia
$48.99
7-Way Trailer Wiring Harness | Custom-Fit for Select Nissan & Suzuki Models
$47.99
Peterson Submersible Trailer Light Kit | Red Square Tail Lights, 25-ft Harness
$44.99
Peterson Universal Trailer Light Kit | Complete Kit with 20 ft Wiring Harness
$41.99
Hopkins Manufacturing Trailer Wiring Kit | Tow Vehicle to Trailer Connection
$39.99
Hopkins Multi-Tow 6:4 Wiring Adapter | 4-Flat to 6-Round and 4-Flat
$39.99
Valterra Mighty Cord 7-Way Trailer Cord | 6 ft, Bulk
$38.99
RV Pigtails 30060 Palomino/Tracker Wiring Pigtail | Orange, 30 in
$37.99
CURT 12-Volt Battery Direct Kit for RVibrake | 16-Gauge Wire, 20-Amp Fuse
$36.99
RV Pigtails 4-Way Trailer Pigtail | 38 in., Yellow, Fold-Down & Pop-Up Campers
$36.99
RV Pigtails Viking 4-6 Way Trailer Pigtail | 30 in., Red, Coachmen/Viking
$36.99
Hopkins Litemate Taillight Adapter | 4-Flat to 7-Way Round
$34.99
Wiring Harness | Quick-Connect Brake Controller Harness
$34.99
Buyers Products Self-Grounding Backup Alarm | 97 dB, 12V, SAE J994 Compliant
$31.99
Tekonsha 3023-P Brake Control Wiring Adapter | 2-Plug, 2013-2014 RAM 1500/2500/3500
$30.99
Hayes Dual Mated Wiring Harness | For 2011-2014 Dodge Durango & Jeep Grand Cherokee
$24.99
Hayes Quick-Connect Brake Controller Harness | 2010-2011 Dodge Ram 1500
$24.99
Pollak 7-Terminal Junction Box | Wiring Connection Box
$23.99
Demco Hydraulic Trailer Brake Rubber Flex Hose
From $21.99
2 options
Hayes DL Mate Wire Harness | Toyota Brake Controller Connector, 2002-2010
$19.99
Fastway 7-Way Trailer Plug Cover with Tether
$16.99
Hopkins 7-Way RV Blade to 6-Pole Round Adapter | Plug-In Trailer Wiring Adapter
$16.99
Peterson 3-Wire Straight Trailer Light Plug | 10.5" Leads, Stripped & Ring Terminal
$13.99
Peterson Manufacturing Double Contact Pigtail | Trailer Wiring Connector
$13.99
RV Designer 6' Wiring Harness | 5-Pin Trailer Connector
$13.99
RV Designer 7-Way Connector Socket | Chrome-Plated, Pistol Grip
$12.99
Hopkins 4-Wire Flat Adapter | 6-Way Round to 4-Way Flat, LED Test Lights
$11.99
RV Designer 4-Way Connector Socket | Die-Cast Metal
$11.99
Hopkins 6-Way Round to 4-Way Flat Adapter | Trailer Wiring
$10.99
RV Designer 4-Way Trailer Connector Plug | Die-Cast Zinc, Pollak Style
$9.99
Demco Air Force One Second Car Install Kit
$9.95
Blue Ox Progressive Tail Light Wiring Kit | Coach-Powered, 26 Ft Harness
$3.79
Matching trailer connectors, plugs, and wiring
Most towing-electrical faults trace back to the connector, and picking the right one turns on two questions: how many pins you need and what shape they sit in. More pins carry more functions — a 4-way flat handles running lights, turn signals, and brake lights, while a 7-way RV blade adds trailer brakes, a charge line, reverse, and 12-volt power.
- Connector style and pin count. Common styles run 4-way flat, 5-pin, 6-way round, and 7-way RV blade. A 4-way is lights only; step up to 6- or 7-way once the trailer has electric brakes or a breakaway to power. Match the trailer plug to the tow vehicle socket.
- Brand-fit pigtails. Some trailers use an odd plug at the frame. RV Pigtails makes model-specific adapters — Jayco and Coachmen/Viking 7-to-6-way pigtails, for instance — so you don't rewire the trailer just to change a connector.
- Adapters for mismatches. When the ends don't match, an adapter bridges them: a Hopkins 6-way round to 4-way flat, or a 7-way to 6/8-way for fold-down and pop-up campers. An adapter changes the connector, not what's wired, so a 4-way still won't run brakes.
- Vehicle-specific harnesses. A custom-fit harness like the Draw-Tite units for select Nissan and Suzuki models plugs into the factory wiring with no splicing, which is cleaner and won't trip a light-out warning.
- Connector material. Out in the weather, die-cast zinc bodies like RV Designer's Pollak-style plugs hold up better than cheap pot-metal, and sealed backs keep corrosion off the pins.
- Test lights and add-ons. A cheap LED tester confirms every function before you pull out, and accessories like a self-grounding backup alarm wire into the same harness.
Clean connectors are what let your brake controller and breakaway system actually reach the brakes. For 12-volt pigtails and connectors on the house side of the rig, the wiring and pigtails category covers those.