Trailer Hitch Wiring & Electrical
![Hitch Wiring](https://ic.carid.com/pages/hitch-wiring/hitch-wiring_0.jpg)
- Tow Ready®Mounting Bracket for 7-Way OEM Connectors (20212)Universal Mounting Bracket for 7-Way OEM Connectors (20212) by Tow Ready®. One-year warranty. Finish: Black Powder Coat. Our website is your one-stop shop for all of your trailering/towing accessories and replacement parts.Manufactured from the top-grade materialsCreated to improve your vehicle's functionality$13.19
- Tow Ready®Mounting Bracket for 7-Way Pin Connectors (118138)Universal Mounting Bracket for 7-Way Pin Connectors (118138) by Tow Ready®. One-year warranty. Finish: Black Powder Coat. Our website is your one-stop shop for all of your trailering/towing accessories and replacement parts.Manufactured from the top-grade materialsCreated to improve your vehicle's functionality$10.26
- Tow Ready®Pre-Wired Brake Mate™ Kit Adapter (118607)Universal Pre-Wired Brake Mate™ Kit Adapter by Tow Ready®. One-year warranty. For PN 5520, PN 20185, PN 20188, PN 39515, PN 39519, PN 39526, PN 83520. Includes all necessary parts required to completely install all brake controls. No...Designed to safely and efficiently haul your loadsMade from the highest quality materials$115.61
- Tri-Lynx®Stay Put Plug Holder (8200B)Stay Put Plug Holder by Tri-Lynx®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...High quality at an affordable priceExpertly made from premium materials$9.92
- Valterra®Mighty Cord™ 30A Female 12" Power Supply Cord with Standard Grip (A10-30PFVP)Mighty Cord™ 30A Female 12" Power Supply Cord with Standard Grip by Valterra®. 30 amp female pigtail for hard wire connections. Heavy duty construction for safe repair and replacement of 30 amp ends.Built to match your exact requirementsExpertly made from premium materials$17.88
- Valterra®Mighty Cord™ 30A Male 12" Power Supply Cord with Standard Grip (A10-30PMVP)Mighty Cord™ 30A Male 12" Power Supply Cord with Standard Grip by Valterra®. 30 amp male pigtail for hard wire connections. Heavy duty construction for safe repair and replacement of 30 amp ends.Built to match your exact requirementsExpertly made from premium materials$16.08
- Valterra®Mighty Cord™ 5th Wheel Gooseneck Harness (A10-7010)Universal Mighty Cord™ 5th Wheel Gooseneck Harness (A10-7010) by Valterra®. Length: 10'. Boxed. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Universal 7-way harness with OEM connectorEasy installation, fits all current model pick-ups$102.77
- Valterra®Mighty Cord™ 5th Wheel Gooseneck Harness (A10-7007)Universal Mighty Cord™ 5th Wheel Gooseneck Harness (A10-7007) by Valterra®. Length: 7'. Boxed. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Universal 7-way harness with OEM connectorEasy installation, fits all current model pick-ups$90.69
- WVE®4-Pole Flat Connector 30'' Lead Wire (4T1109)Universal 4-Pole Flat Connector 30'' Lead Wire (4T1109) by WVE®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to keep your vehicle running reliably mile after mileMade from superior materials for excellent durability$25.02
- WVE®7-Pin to 4 Pin Flat Adapter 48" Lead Wire (4T1165)Universal 7-Pin to 4 Pin Flat Adapter 48" Lead Wire (4T1165) by WVE®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to keep your vehicle running reliably mile after mileMade from superior materials for excellent durability$68.94
- WVE®7-Pole Trailer Connector Plug (4T1143)Universal 7-Pole Trailer Connector Plug (4T1143) by WVE®. Blade Bullet. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to keep your vehicle running reliably mile after mileMade from superior materials for excellent durability$17.73
- Tekonsha®T-One Connector (118864)T-One Connector Turn and Brake 5 Amps / Running / Taillight 7.5 Amps by Tekonsha®. One-year warranty. 4-Way Flat. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the..."Factory" appearanceQuick and eas installation$116.98
- Tekonsha®T-One Connector (118851)T-One Connector Turn and Brake 5 Amps / Running / Taillight 7.5 Amps by Tekonsha®. One-year warranty. 4-Way Flat. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the..."Factory" appearanceQuick and eas installation$154.76
- Tekonsha®T-One Connector (118854)T-One Connector Turn and Brake 5 Amps / Running / Taillight 7.5 Amps by Tekonsha®. One-year warranty. 4-Way Flat. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the..."Factory" appearanceQuick and eas installation$107.39
- Tekonsha®T-One Connector (118848)T-One Connector Turn and Brake 5 Amps / Running / Taillight 7.5 Amps by Tekonsha®. One-year warranty. 4-Way Flat. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the..."Factory" appearanceQuick and eas installation$76.71
- Tekonsha®T-One Connector (118856)T-One Connector Turn and Brake 5 Amps / Running / Taillight 7.5 Amps by Tekonsha®. One-year warranty. 4-Way Flat. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the..."Factory" appearanceQuick and eas installation$112.64
- Tekonsha®T-One Connector (118839)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$127.64
- Tekonsha®T-One Connector (118847)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$116.66
- Tekonsha®T-One Connector (118845)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$122.75
- Tekonsha®T-One Connector (118834)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$122.76
- Tekonsha®T-One Connector (118843)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$158.63
- Tekonsha®T-One Connector (118844)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$132.75
- Tekonsha®T-One Connector (118832)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$127.64
- Tekonsha®T-One Connector (118835)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$112.65
- Tekonsha®T-One Connector (118836)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$137.79
- Tekonsha®T-One Connector (118833)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module by Tekonsha®. One-year warranty. 3 Wire System. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$122.78
- Tekonsha®T-One Connector (Turn and Brake 5 Amps / Running / Taillight 7.5 Amps) (118842)T-One Connector Turn and Brake 5 Amps / Running / Taillight 7.5 Amps (118842) by Tekonsha®. One-year warranty. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the..."Factory" appearanceQuick and eas installation$123.50
- Tekonsha®T-One Connector (With Upgraded Circuit Protected ModuLite® HD Module) (118849)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module (118849) by Tekonsha®. One-year warranty. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$132.73
- Tekonsha®T-One Connector (With Upgraded Circuit Protected ModuLite® HD Module) (118827)T-One Connector with Upgraded Circuit Protected ModuLite® HD Module (118827) by Tekonsha®. One-year warranty. T-One Connectors require no splicing of vehicle wires. Simply locate your vehicles wiring harness connector, unplug the...Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer$101.40
- Tekonsha®7-Way Towing Wiring Harness Prep Kit (22126)7-Way Towing Wiring Harness Prep Kit by Tekonsha®. With Clamshell Package. One-year warranty. Transform your vehicle into a reliable load-hauling machine by installing this superior trailer hitch. With this product that is made...No Cutting Or Splicing Vehicle WiringIsolates Trailer Light Operation from Tow Vehicle's Electrical System$274.99
So, you’ve got your trailer connected to your truck with the right hitch, ball mount and trailer ball. You’re ready to go, but what about your trailer lights? If the trailer connector doesn’t match the one on your tow vehicle, or if the vehicle doesn’t even have a plug, stick around. From basic exterior lights to 12-volt powered accessories, all trailers need electric power supplied by your vehicle, and we have everything needed to make a hassle-free connection including extensions, connectors, harnesses and adapters.
There are a number of standardized trailer connectors, such as 4-pin flat/round, 5-pin flat, 6-pin square/round, and 7-pin round. The simplest 4-pin system is used for small trailers, and has one ground pin, one pin each for left and right turn signals and brake lights, and one for the running lights. 5-pin flat connectors add a wire for the back-up lights. If the trailer is equipped with surge brakes, this circuit also disengages the brakes when the vehicle is backing up.
In addition to connections for turn signals, brake lights, tail lights and ground, 6-pin connectors have one terminal each for electric brakes and 12-volt accessories. 6-pin connectors come in square and round styles and are common to gooseneck and 5th wheel trailers, boat trailers and campers. 7-pin connectors are most commonly found on new vehicles that are prewired for towing. Along with the same functions as a 6-pin connector, this connector has a 7th circuit that is for the back-up lights. 7-pin connectors come with round or RV blade-style pins. Fortunately, no matter what connector you have on your trailer, we have the wiring harnesses that will let you plug into your vehicle’s electrical system.
The first thing you have to determine is whether your vehicle has a factory installed trailer towing package. If it does, you’ll find an electrical connector at the rear of the vehicle, usually on or near the bumper. If the shape and number of pins (wires) on the vehicle connector matches the one on your trailer, then all you’ll need is a wiring harness of sufficient length with the same connector at each end. If not, we can supply you with a plug-and-play adapter harness that will make all your trailer electrical functions work, without any cutting and splicing. For example, if your truck has a 7-pin round connector but your trailer has a 4-pin flat connector, one of our adapter harnesses will have you connected in minutes.
But don’t worry if your vehicle isn’t already set up for towing, we can still get you connected without much hassle. For most vehicles we offer a plug-and-play T-shaped harness (so called because it connects to both of your tail lights) that connects your vehicle lights to the trailer lights. If you have an obscure vehicle for which no T-shaped harness is available, we can still help, but some splicing will be necessary. And if your vehicle uses separate bulbs for the brake lights and turn signals but your trailer uses one bulb for both, we can supply you with a converter harness that will make the connection simple. We also have a large assortment of brackets, connectors, sockets, and anything else you need to get connected.
Featured Brands
Related Categories
Trailer Hitches
Hitch Balls & Mounts
Brake Controllers
Pintle Hitches
Hitch Accessories
5th Wheel Hitches
Gooseneck Hitches
Weight Distribution
Sway Control
Front Hitches
Tow Bars
Trailer Couplers
Trailer Brakes
Trailer Breakaway Kit
Hitch Cargo Carriers
Hitch Covers
Hitch Steps
Straps & Tie Downs
Trailers
Trailer Jacks
Trailer Winches
Trailer Tool Boxes
Trailer Accessories
Tow Lights