Top 12 Trailer Wiring

Trailers do not run on power and are usually towed by other powered vehicles like trucks or SUVs, making them useful for transportation. Even though transporting goods involves rough usage, a trailer can last several years, making it a long-term investment. However, that doesn't mean you don't need to upgrade a trailer once in a while, and one of the first things you might need to upgrade is the wiring. But no matter how old or used-up your trailer is, you can easily rewire it with new trailer wiring.

Browse Best Trailer Wiring

PAC RP5-GM31 Radio Replacement Interface with Built-In OnStar Package for 2007-2012 ...

  • Brand Name: PAC
  • Model Name: RP5YUKONXTR
  • Size Options: 07-12 Yukon/XL/Denali, 07-12 Escalade/ESV/EXT Package, 07-12 Suburban/Tahoe Package, 8.60in. x 8.50in. x 2.10in.
  • Item Weight: 2 pounds
  • Satisfaction Score: 93%
  • Dimensions: 12 x 10 x 8.5 inches
  • Overall Score: 8.7
Store Website: www.amazon.com

ClearMax Heavy Duty 7 Way Trailer Cord Inline Connector Plug Color-Coded 10, ...

  • Brand Name: ClearMax
  • Model Name: D-TC7-8C1
  • Item Weight: 2.69 pounds
  • Satisfaction Score: 94%
  • Dimensions: 2.1 x 2.8 x 8.3 inches
  • Overall Score: 8.5
Store Website: www.amazon.com

Heavy Duty 14 Gauge 7 Way Conductor Wire RV Trailer Cable Cord, 10'

  • Brand Name: Deka
  • Model Name: 04908-10
  • Item Weight: 12.8 ounces
  • Satisfaction Score: 100%
  • Dimensions: 4 x 4 x 2 inches
  • Overall Score: 9.3
Store Website: www.amazon.com

CURT 57245 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter ...

  • Brand Name: CURT
  • Model Name: 57245
  • Item Weight: 4 ounces
  • Satisfaction Score: 91%
  • Dimensions: 6.5 x 3 x 2 inches
  • Overall Score: 8.9
Store Website: www.amazon.com

BOODLED 4pcs C5w 31mm(1.25") LED Bulb Super Bright 400Lumes 4014 10-SMD Chipsets ...

  • Brand Name: BOODLED
  • Model Name: 31MM-10-4014-W-R(body)-US
  • Size Options: 31mm, 36mm, 39mm, 41mm/42mm
  • Item Weight: 0.669 ounces
  • Satisfaction Score: 100%
  • Dimensions: 3.98 x 3.35 x 0.47 inches
  • Overall Score: 9.9
Store Website: www.amazon.com

Partsam Trailer Wire Extension Plug, 4 Pin Hitch Light Trailer Wiring Harness ...

  • Brand Name: Partsam
  • Model Name: 13
  • Item Weight: 2.39 ounces
  • Satisfaction Score: 101%
  • Dimensions: 1 x 1 x 1 inches
  • Overall Score: 9.5
Store Website: www.amazon.com

[ALL STAR TRUCK PARTS] Heavy Duty 14 Gauge 7 Way Conductor Wire RV Trailer ...

  • Brand Name: All Star Truck Parts
  • Model Name: ASTP147W
  • Size Options: 10 FT ROLL, 20 FT ROLL, 30 FT ROLL, 50 FT ROLL, 100 FT ROLL
  • Item Weight: 1.96 pounds
  • Satisfaction Score: 98%
  • Dimensions: 9.72 x 9.33 x 1.34 inches
  • Overall Score: 8.9
Store Website: www.amazon.com

Heavy Duty 14 Gauge 7 Way Conductor Wire RV Trailer Cable Cord, (TTP) (10)

  • Brand Name: TTP
  • Model Name: 14-873
  • Size Options: 1.030501001502E+020
  • Item Weight: 1.8 pounds
  • Satisfaction Score: 97%
  • Dimensions: 8.2 x 8 x 1.7 inches
  • Overall Score: 9.1
Store Website: www.amazon.com

Hopkins 47405 4 Wire Flat Adapter

  • Brand Name: Hopkins Towing Solutions
  • Model Name: 47405
  • Item Weight: 4.5 ounces
  • Satisfaction Score: 100%
  • Dimensions: 6.88 x 2.88 x 1.75 inches
  • Overall Score: 9.9
Store Website: www.amazon.com

Heavy Duty 14 Gauge 7 Way Conductor Wire RV Trailer Cable Cord, 20'

  • Brand Name: East Penn
  • Model Name: 14-873
  • Item Weight: 3.94 pounds
  • Satisfaction Score: 100%
  • Dimensions: 6 x 5.5 x 4.4 inches
  • Overall Score: 9.7
Store Website: www.amazon.com

CURT 56127 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Select Mitsubishi ...

  • Brand Name: CURT
  • Model Name: 56127
  • Item Weight: 1.75 pounds
  • Satisfaction Score: 95%
  • Dimensions: 9 x 6 x 3 inches
  • Overall Score: 8.9
Store Website: www.amazon.com

Factor 55 00420-01 Fast Fid Rope Splicing Tool Red

  • Brand Name: Factor 55
  • Model Name: 00420-01
  • Item Weight: 2 pounds
  • Satisfaction Score: 100%
  • Dimensions: 12.5 x 6 x 0.5 inches
  • Overall Score: 9.9
Store Website: www.amazon.com

Trailer Wiring Buying Guide

Since trailers are towed by secondary vehicles like a car or truck, trailer wiring is used to connect to the trailer's tail lights, brake signals, and turn signals. You can easily plug it into the existing factory wiring on your vehicle or set up a new one. Besides turn and brake signals, the wires also provide ground connection and are color-coded for easy installation. But buying trailer wiring is not as easy as it sounds, and there are several properties you need to consider, especially if changing or installing the wiring for the first time.

Four Pin Vs. Seven Pin Trailer Wiring

When buying trailer wiring, buyers are likely to come across two options – four-pin or seven-pin wiring. Initially, you could only find the standard four-pin wiring, but now more people are switching to seven-way trailer wiring. As you can easily tell, the main difference between the two is the wire count – the functions increase along with the number of wires. In a four-way connector, there are wires for ground connection, left and right turns, and tail lights where brake lights are combined with turn lights. In contrast, a seven-way connector has a separate brake indicator plus reverse and aux power lights.

Choose High-Quality Wiring

Even though the wiring is an internal part of a vehicle (or trailer), one should always choose premium quality wires for extended use and proper functioning. The first thing to do is select heavy-duty gauge wires made with pure copper conductors as it is far more durable and long-lasting. Going with insulated, PVC jacketed, and weather-resistant wires is a better choice as it generates less heat, works great under extreme temperatures, and offers added protection. You can even go with bonded loop wires as they are easier to connect with your vehicle's existing wiring system.

Check the Size and Thickness

While the main wires are attached to a connector, the entire cable is supposed to spread across the trailer based on how you position the wiring – which is why you need to pick the right size. The length you select majorly depends on your trailer's size, and it is better to go with a slightly bigger size for hassle-free installation. You can either choose a standard size or select one as per your requirement. It may be hard to find the wire's thickness in specifications, but doing so is recommended as sometimes it can be challenging to install thick ones.

Categories Simillar to Trailer Wiring

Categories Simillar to Trailer Wiring includes Trailer Springs, Trailer Fenders and Trailer Stands