Trailer Hitch Wiring & Electrical

Hitch Wiring
  • Pollak® - Single Pole Thermal Type Breakers
    Pollak®Single Pole Thermal Type Breakers
    0
    # 96927709
    Single Pole Thermal Type Breakers 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
    $9.55 - $12.62
  • Pollak® - Socket
    Pollak®Socket
    0
    # 4579363195
    Universal Socket 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 industry-leading...
    High quality at an affordable priceExpertly made from premium materials
    $14.85 - $51.68
  • Pollak® - Terminal Block
    Pollak®Terminal Block
    0
    # 96918788
    Terminal Block 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 meet...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $9.56 - $13.07
  • Pollak® - Trailer-End Only- Plug
    Pollak®Trailer-End Only- Plug
    0
    # 96919407
    Trailer-End Only- 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...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $10.22 - $11.61
  • RV Designer® - 4-Way Trailer Connector Socket
    RV Designer®4-Way Trailer Connector Socket
    0
    # 267977571
    Universal 4-Way Trailer Connector Socket by RV Designer®. 1 Piece. RV Designer is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs....
    Created by professionals to meet your requirementsManufactured with cutting-edge technology
    $7.88 - $11.65
  • RV Designer® - 7-Way Trailer Connector Plug
    RV Designer®7-Way Trailer Connector Plug
    0
    # 224561357
    Universal 7-Way Trailer Connector Plug by RV Designer®. 1 Piece. RV Designer is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs....
    Created by professionals to meet your requirementsManufactured with cutting-edge technology
    $10.71 - $14.03
  • RV Designer® - 7-Way Trailer Connector Socket
    RV Designer®7-Way Trailer Connector Socket
    0
    # 89390291
    Universal 7-Way Trailer Connector Socket by RV Designer®. 1 Piece. RV Designer is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs....
    Created by professionals to meet your requirementsManufactured with cutting-edge technology
    $13.54 - $17.25
  • RV Designer® - 7-Way to 6-Way Round Trailer Connector Adapter
    RV Designer®7-Way to 6-Way Round Trailer Connector Adapter
    0
    # 89387225
    7-Way to 6-Way Round Trailer Connector Adapter by RV Designer®. 1 Piece. RV Designer is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your...
    Created by professionals to meet your requirementsManufactured with cutting-edge technology
    $11.91 - $16.03
  • RV Designer® - Heavy Duty 7-Way Socket with Solid Pins
    RV Designer®Heavy Duty 7-Way Socket with Solid Pins
    0
    # 247289236
    Universal Heavy Duty 7-Way Socket with Solid Pins by RV Designer®. 1 Piece. RV Designer is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for...
    Created by professionals to meet your requirementsManufactured with cutting-edge technology
    $13.70 - $16.89
  • RV Designer® - Trailer Connector Adapter
    RV Designer®Trailer Connector Adapter
    0
    # 438237526
    Trailer Connector Adapter by RV Designer®. 1 Piece. RV Designer is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products...
    Created by professionals to meet your requirementsManufactured with cutting-edge technology
    $11.88 - $16.34
  • RV Designer® - Trailer Connector Plug
    RV Designer®Trailer Connector Plug
    0
    # 224560757
    Universal Trailer Connector Plug by RV Designer®. 1 Piece. RV Designer is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All...
    Created by professionals to meet your requirementsManufactured with cutting-edge technology
    $5.93 - $13.95
  • RV Pigtails® - Connector Adapter
    RV Pigtails®Connector Adapter
    0
    # 999274872
    Universal Connector Adapter by RV Pigtails®. 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...
    Designed to meet the highest quality standardsBuilt to offer superior performance for a long time
    $14.91 - $34.35
  • RV Pigtails® - Pigtail Wiring Connector Adapter
    RV Pigtails®Pigtail Wiring Connector Adapter
    0
    # 993863368
    Universal Pigtail Wiring Connector Adapter by RV Pigtails®. Base Color: Black. 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...
    Designed to meet the highest quality standardsBuilt to offer superior performance for a long time
    $18.56 - $70.02
  • Standard® - Handypack™ 4-Pole Round Trailer Connector
    Standard®Handypack™ 4-Pole Round Trailer Connector
    0
    # 343863511
    Universal Handypack™ 4-Pole Round Trailer Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation...
    High quality at an affordable priceExpertly made from premium materials
    $3.92 - $5.32
  • Standard® - Handypack™ 6-Pole Trailer Connector
    Standard®Handypack™ 6-Pole Trailer Connector
    0
    # 343863514
    Universal Handypack™ 6-Pole Trailer Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
    High quality at an affordable priceExpertly made from premium materials
    $6.73 - $11.50
  • Standard® - Handypack™ 7-Pole RV Trailer Connector
    Standard®Handypack™ 7-Pole RV Trailer Connector
    0
    # 343863517
    Universal Handypack™ 7-Pole RV Trailer Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
    High quality at an affordable priceExpertly made from premium materials
    $7.01 - $11.78
  • Standard® - Handypack™ HD Trailer Connector
    Standard®Handypack™ HD Trailer Connector
    0
    # 343863567
    Universal Handypack™ HD Trailer Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
    High quality at an affordable priceExpertly made from premium materials
    $5.32 - $15.68
  • Tow Ready® - 4-Flat Plug Loop with Wire Taps
    Tow Ready®4-Flat Plug Loop with Wire Taps
    0
    # 4655220648
    Universal 4-Flat Plug Loop with Wire Taps by Tow Ready®. One-year warranty. Wire up your tow vehicle and trailer with whatever it takes to get your trailer lights on, the electric brakes slowing down, and the trailer battery charging....
    7.5 Amps max per circuitIncludes both car and trailer 4-Flat Connectors wired end to end
    $9.63 - $13.19
  • Tow Ready® - 7-Way Trailer Wiring Harness
    Tow Ready®7-Way Trailer Wiring Harness
    0
    # 470475636
    Universal 7-Way Trailer Wiring Harness by Tow Ready®. One-year warranty. Allows remote wiring in pickup beds or other hard to access areas when towing a fifth wheel or gooseneck trailer, using an OEM USCAR connector. Features durable...
    Plug and Play T-harnesses to connect to vehicle wiringTrailer wiring connectors, for both truck and trailer
    $95.33 - $109.14
  • Tow Ready® - Mounting Bracket
    Tow Ready®Mounting Bracket
    2
    # 4655224783
    Universal Mounting Bracket by Tow Ready®. One-year warranty. 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
    $6.78 - $16.24
  • Truck-Lite® - 2 Plug Identification and License Wiring Harness
    Truck-Lite®2 Plug Identification and License Wiring Harness
    0
    # 96901850
    Universal 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 Harness
    Truck-Lite®50 Series 1 Plug Turn/Tail Wiring Harness
    0
    # 96892239
    Universal 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 Harness
    Truck-Lite®50 Series 3 Plug Identification Wiring Harness
    0
    # 88830898
    Universal 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 Breakout
    Truck-Lite®50 Series 3 Plug Marker Clearance and Stop/Turn/Tail Wiring Harness with Stop/Turn/Tail and Marker/Clearance Breakout
    0
    # 88830836
    Universal 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 Breakout
    Truck-Lite®50 Series 3 Plug Stop/Turn/Tail and Back-Up Wiring Harness with Stop/Turn/Tail Breakout
    0
    # 88830840
    Universal 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 Harness
    Truck-Lite®50 Series Marker Clearance Wiring Harness
    0
    # 88830804
    Universal 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 Harness
    Truck-Lite®50 Series Stop/Turn/Tail Wiring Harness
    0
    # 96907667
    Universal 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 Harness
    Truck-Lite®50 Series Turn Signal Wiring Harness
    0
    # 88830873
    Universal 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 55" Rear 15 Plug License and Stop/Turn/Tail Wiring Harness with Stop/Turn/Tail and Marker/Clearance and Auxiliary and Tail Breakout
    Truck-Lite®88 Series 55" Rear 15 Plug License and Stop/Turn/Tail Wiring Harness with Stop/Turn/Tail and Marker/Clearance and Auxiliary and Tail Breakout
    0
    # 379309557
    Universal 88 Series 55" Rear 15 Plug License and Stop/Turn/Tail Wiring Harness with Stop/Turn/Tail and Marker/Clearance and Auxiliary and Tail Breakout by Truck-Lite®. 14 Gauge. Male 7 Pole Plug, Right Angle PL-3, Female 0.180 Bullet....
    Expertly crafted from superior materialsProvides exceptional reliability
    $133.78 - $144.04
  • Truck-Lite® - 88 Series ABS Wiring Harness
    Truck-Lite®88 Series ABS Wiring Harness
    0
    # 647533406
    Universal 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




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

Hitch Electrical & Wiring Reviews

141 reviews
4 of 5
Easy to install
CURT® - T-Connector
This is replacing one that I installed about 5 years ago and quit working. I wish it would have lasted longer but the fact that it is plug and play made the replacement not so difficult.
Posted by Customer / June 03, 20212016 Kia Sedona
CARiD FacebookCARiD XCARiD YouTube ChannelCARiD PinterestCARiD Instagram
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.
CUSTOMER SERVICE
INFORMATION
CONTACTS