Trailer Hitch Wiring & Electrical
![Hitch Wiring](https://ic.carid.com/pages/hitch-wiring/hitch-wiring_0.jpg)
- Husky Towing®Trailer Wiring Connector AdapterUniversal Trailer Wiring Connector Adapter by Husky Towing®. 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$9.04 - $77.71
- Husky Towing®Trailer Wiring Connector ExtensionUniversal Trailer Wiring Connector Extension by Husky Towing®. 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....Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability$2.34 - $16.12
- Husky Towing®Trailer Wiring Connector Mounting BracketUniversal Trailer Wiring Connector Mounting Bracket by Husky Towing®. 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....Limited 1 Year WarrantyPerfect blend of leading innovations and superior workmanship$4.54 - $10.52
- Roadmaster®Flexo-Coil Power Cord KitFlexo-Coil Power Cord Kit by Roadmaster®. 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...High quality at an affordable priceExpertly made from premium materials$85.09 - $146.95
- Torklift®Wiring Extension for SuperTruss Receiver ExtensionWiring Extension for SuperTruss Receiver Extension by Torklift®. No-splice, truck-to-camper wire harness designed to plug into your existing rear 7-way RV plug. This product is made of high-quality materials to serve you for years to...Installs quickly and easily, no splicing requiredMeasures 10' long$235.65
- Buyers®LED Turn Signal Equalizer DOT Light PlugsUniversal LED Turn Signal Equalizer DOT Light Plugs by Buyers®. Buyers Products DOT Turn Signal Equalizer Plugs have a 50W rating and allow you to convert incandescent turn signal lights to LEDs, while maintaining proper flash rate.Converts incandescent turn signal lights to LED while maintaining proper flash rateYour choice of blunt cut leads or female PL-3 plug$10.62 - $10.80
- Buyers®Trailer ConnectorUniversal Trailer Connector by Buyers®. 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. Manufactured from...High quality at an affordable priceExpertly made from premium materials$10.72 - $25.38
- Buyers®Trailer Connector AdapterUniversal Trailer Connector Adapter by Buyers®. 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. Manufactured from...Solves a mismatch between your truck and trailer connection hardwareDurable, weather-resistant plastic construction$12.29 - $21.31
- Camco®4-Way Wishbone Trailer End Harness4-Way Wishbone Trailer End Harness by Camco®. Male/Plug end. 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...Developed to comply with rigorous quality standardsCutting-edge innovations, reliable design, solid value$5.85 - $12.83
- Truck-Lite®2 Plug Identification and License Wiring HarnessUniversal 2 Plug Identification and License Wiring Harness by Truck-Lite®. 14 Gauge. Female 0.180 Bullet, 0.180 Bullet. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the...Dimensions ''A'' indicate standard stocked length harnessCustom length available in 12'' increments.$8.57 - $31.98
- Truck-Lite®50 Series 1 Plug Turn/Tail Wiring HarnessUniversal 50 Series 1 Plug Turn/Tail Wiring Harness by Truck-Lite®. 14 Gauge. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this...Dimensions ''A'' indicate standard stocked length harnessA range of custom length harnesses are available in 12'' increments$40.83 - $56.61
- Truck-Lite®50 Series 3 Plug Identification Wiring HarnessUniversal 50 Series 3 Plug Identification Wiring Harness by Truck-Lite®. 14 Gauge. PL-10, Blunt Cut. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and...Dimensions ''A'' indicate standard stocked length harnessA range of custom length harnesses are available in 12'' increments$21.79 - $53.75
- Truck-Lite®50 Series 3 Plug Marker Clearance and Stop/Turn/Tail Wiring Harness with Stop/Turn/Tail and Marker/Clearance BreakoutUniversal 50 Series 3 Plug Marker Clearance and Stop/Turn/Tail Wiring Harness with Stop/Turn/Tail and Marker/Clearance Breakout by Truck-Lite®. This product is made from high-grade materials to meet the strictest standards of high...Expertly crafted from superior materialsProvides exceptional reliability$47.40 - $83.42
- Truck-Lite®50 Series 3 Plug Stop/Turn/Tail and Back-Up Wiring Harness with Stop/Turn/Tail BreakoutUniversal 50 Series 3 Plug Stop/Turn/Tail and Back-Up Wiring Harness with Stop/Turn/Tail Breakout by Truck-Lite®. 14 Gauge. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...Dimensions ''A'' indicate standard stocked length harnessA range of custom length harnesses are available in 12'' increments$48.01 - $56.33
- Truck-Lite®50 Series Marker Clearance Wiring HarnessUniversal 50 Series Marker Clearance Wiring Harness by Truck-Lite®. 14 Gauge. 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...Expertly crafted from superior materialsProvides exceptional reliability$16.63 - $74.28
- Truck-Lite®50 Series Stop/Turn/Tail Wiring HarnessUniversal 50 Series Stop/Turn/Tail Wiring Harness by Truck-Lite®. 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....Expertly crafted from superior materialsProvides exceptional reliability$35.64 - $95.34
- Truck-Lite®50 Series Turn Signal Wiring HarnessUniversal 50 Series Turn Signal Wiring Harness by Truck-Lite®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this Truck-Lite...Expertly crafted from superior materialsProvides exceptional reliability$36.35 - $50.67
- Truck-Lite®88 Series ABS Wiring HarnessUniversal 88 Series ABS Wiring Harness by Truck-Lite®. Packard Connector 12124587, 0.180 Bullet. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention...$78.70 - $259.10
- Truck-Lite®Identification Wiring HarnessUniversal Identification Wiring Harness by Truck-Lite®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this Truck-Lite product...$13.87 - $28.27
- Truck-Lite®Marker Clearance Wiring HarnessUniversal Marker Clearance Wiring Harness by Truck-Lite®. 14 Gauge. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this Truck-Lite...Dimensions ''A'' indicate standard stocked length harnessCustom length available in 12'' increments.$6.62 - $22.34
- Truck-Lite®Marker Clearance and Identification Wiring HarnessUniversal Marker Clearance and Identification Wiring Harness by Truck-Lite®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this...$12.41 - $19.39
- Truck-Lite®Signal-Stat 1 Plug ConnectorUniversal Signal-Stat 1 Plug Connector by Truck-Lite®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this Truck-Lite product...Expertly crafted from superior materialsProvides exceptional reliability$13.53 - $19.71
- Truck-Lite®Super 50 Conductor Compression FittingUniversal Super 50 Conductor Compression Fitting by Truck-Lite®. 3-part fitting consisting of a pre-tapped cap, threaded base and black PVC grommet that is available with 6 different hole sizes to accommodate various conductor cables....Expertly crafted from superior materialsProvides exceptional reliability$7.25 - $9.31
- Blue Ox®Coiled Electrical CableUniversal Coiled Electrical Cable by Blue Ox®. Transform your vehicle into a reliable load-hauling machine by installing this superior trailer hitch. With this product that is made utilizing only the highest quality materials and the...Designed to safely and efficiently haul your loadsMade from the highest quality materials$76.29 - $77.50
- Blue Ox®LED Tail Light Wiring KitUniversal LED Tail Light Wiring Kit by Blue Ox®. Transform your vehicle into a reliable load-hauling machine by installing this superior trailer hitch. With this product that is made utilizing only the highest quality materials and the...Designed to safely and efficiently haul your loadsMade from the highest quality materials$112.14 - $118.58
- Blue Ox®LED Wiring KitUniversal LED Wiring Kit by Blue Ox®. Includes Bulb and Socket Assembly. 10-pack. Transform your vehicle into a reliable load-hauling machine by installing this superior trailer hitch. With this product that is made utilizing only the...Designed to safely and efficiently haul your loadsMade from the highest quality materials$222.36 - $246.16
- Phillips Industries®Single Pole SocketUniversal Single Pole Socket by Phillips Industries®. 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. Manufactured from...Zinc die-cast housing for durabilitySolid brass pins$21.78
- Pollak®7-Way Connector Plug7-Way Connector Plug by Pollak®. 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, this product by Pollak will last a lifetime. It will...Expertly crafted from premium materialsDesigned to match rigorous quality standards$11.33 - $15.72
- Pollak®7-Way ConnectrorUniversal 7-Way Connectror by Pollak®. 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. Manufactured from...High quality at an affordable priceExpertly made from premium materials$3.24 - $17.24
- Pollak®7-Way To 6-Way Connector Adapter7-Way To 6-Way Connector Adapter by Pollak®. 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, this product by Pollak will last a...Expertly crafted from premium materialsDesigned to match rigorous quality standards$8.63 - $11.81
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