Best Trailer Wiring Kit In December 2022

Are you looking for the trailer wiring kit from different brands on the market, such as RED WOLF,CURT but don't know where to start? We've selected our best trailer wiring kit after extensive research and designed a buying guide to help you pick the best option.

To compile our list of the best trailer wiring kit, we've researched and evaluated a range of the best-selling trailer wiring kit on the market. We recommend RED WOLF Trailer Wiring Kit as our top pick because of its best overall performance. Want to explore more options? Read on! There's also a buying guide to help you make a wise shopping decision.

Editor's Choice
RED WOLF Replacement for Subaru Forester/Outback/Crosstrek 2009-2020 to Add Subaru Towing Trailer
9.7
RED WOLF Replacement for Subaru Forester/Outback/Crosstrek 2009-2020 to Add Subaru Towing Trailer
Premium Pick
CURT 56378 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Honda Odyssey , Black</h3>
9.4
CURT 56378 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Honda Odyssey , Black
Budget Pick
CURT 55319 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Chevrolet, GMC C/K
9.1
CURT 55319 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Chevrolet, GMC C/K

Top 10 Best Trailer Wiring Kit Reviews 2022

1. RED WOLF Replacement for Subaru Forester/Outback/Crosstrek 2009-2020 to Add Subaru Towing Trailer

  • For Subaru Forester 2009-2020, 2010-2020 Subaru Outback/Wagon/Except Sport, 2013-2015 Subaru XV Crosstrek/Except Hybrid, 2016-2019 Subaru Crosstrek/Except Hybrid models.
  • The subaru 4 pin trailer harness allow to add or towing a trailer/ hitch or solve the issue with lighting on trailer. Totally 6.6 ft wire harness to meed the need when you hook them up.
  • Anti- dust & rain. 4 way flat subaru trailer connector comes with dust cap that protect the 4pin metal from dust or water to prevent go rust. High quality material make, durable use, as you can see at advertising pictures.
  • Easy install: The subaru trailer 4 way harness is directly plug the white connector into the existing factory harness . Attaching the ground screw and locating the adapter box wherever you feel it would be out of the way.
  • No cutting or splicing factory wire. What's more, the fuse was set out side the harness so that if we needed to change the fuse we could do it without having to remove the trim.

2. CURT 56378 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Honda Odyssey , Black</h3>

  • RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance
  • DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
  • VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Honda Odyssey (factory tow package required)
  • STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle

3. CURT 55319 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Chevrolet, GMC C/K

  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
  • VEHICLE-SPECIFIC. This wiring harness fits select years of the Chevrolet Blazer, C1500, C2500, K1500 and K2500 Suburban, Tahoe, GMC C1500, C2500, K1500 and K2500 Suburban, Yukon, Yukon XL 1500, Yukon XL 2500 and Cadillac Escalade
  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. It features tabs on the top and bottom for a better grip when plugging into your trailer or unplugging
  • DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements
  • STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle

4. CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Subaru Ascent, Forester,

  • STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle
  • VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Subaru Ascent, Forester, Outback, Crosstrek and XV Crosstrek (factory tow package required)
  • RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
  • DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements

5. CURT 56256 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Kia Sorento , Black</h3>

  • VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Kia Sorento
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
  • STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle
  • RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance
  • DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements

6. CURT 56349 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Tacoma</h3> CURT

  • STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
  • VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota Tacoma
  • DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements
  • RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance

7. CURT 56407 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Jeep Wrangler JL, Gladiator

  • STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
  • VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Jeep Wrangler JL and Jeep Gladiator
  • RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance
  • DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements

8. CURT 55361 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Nissan Pathfinder, Altima

CURT 55361 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Nissan Pathfinder, Altima
9.8
By - Curt Manufacturing
  • DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements
  • VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Nissan Pathfinder, Nissan Altima sedan and Infiniti QX4
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
  • RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance
  • STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle

9. CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness, Black</h3> CURT

  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness Ts into an existing USCAR connection on your vehicle and equips it with a standard 4-pin trailer wiring connector for plugging in and towing a trailer
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of the 4-pin vehicle wiring socket is made from durable black molded rubber that will never rust or corrode
  • NOTE: Vehicle must already be equipped with USCAR
  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. It features a tab on top for a better grip when plugging into your trailer or unplugging
  • STANDARD CONNECTOR. The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle
  • USCAR-SPECIFIC. This USCAR wiring harness is designed for select vehicles with a standard USCAR socket, ensuring the easiest possible installation and the most reliable wiring connection

10. CURT 55242 Vehicle-Side Custom RV Blade 7-Pin Trailer Wiring Harness, Fits Select Ford F-150,

  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of the 7-pin vehicle wiring socket is made from durable black molded rubber that will never rust or corrode. The wires are also protected by a slit loom sleeve to keep them bundled together and well protected.
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness plugs into existing original equipment wiring on your vehicle and equips it with a standard RV blade 7-pin trailer wiring connector for plugging in and towing a trailer.
  • HEAVY-DUTY CONNECTOR. The 7-way trailer wiring assembly can be used to connect trailer taillights, brake lights, reverse light signals, turn signals, electric trailer brakes and an auxiliary power wire. 7pin trailer wiring is popular on a wide variety of heavy-duty trailers, such as 5th wheel and gooseneck.
  • VEHICLE-SPECIFIC. This vehicle-trailer wiring harness package is designed for select models of the Ford F-150, F-150 Heritage and F-250. This ensures the easiest possible installation and the most reliable wiring connection.T-Connector Location:T3
  • SPRING-LOADED COVER. To promote long-lasting use and weather resistance, this 7 pin trailer wiring harness kit comes with a spring-loaded dust cover. It protects the 7way RV blade connector when not in use, shielding it from the outdoor elements and internal corrosion.
  • fit type: Vehicle Specific

Frequently Asked Question

1. What gauge wire is best for trailers?

Trailer wiring generally uses 16 gauge wire, part # 16-1-1. However, with a long trailer like yours you may want to go with a larger like 14 gauge # DW07550-1 or even 12 gauge # 12-1-1. Each size is sold by the foot.

2. What is the most common trailer wiring?

The 7-way connector is the most popular trailer connection type found on late model SUV's, trucks and RV's and comes with everything the others come with along with the availability for backup lights. There are two different types of 7-way connectors, one with flat pins (blades) and one with round pins.

3. Does each light on trailer need to be grounded?

Helpful Expert Reply: Each lamp needs to be grounded either through its mounting studs being in direct contact with the trailer frame or by having a jumper wire ran from the lamp to the trailer frame. Ground the trailer connector at the front of the trailer, which will use the trailer frame as a ground wire.

4. Can I use 18 gauge wire for trailer lights?

18 gauge wire. Extend wiring system for more flexibility. Most commonly used for all types of trailers. Color coded wire for easy recongnition.