Wiring Needed For Electric Trailer Brakes On a 7,000LB Car Hauler Trailer
Question:
Hello, I recently rewired my 7k lbs two car hauler and it’s my first time doing this type of work. I did the lights and now I’m working on my brakes, I’m using 16 gauge wires, I’m not sure if I do bigger wires? I installed a junction box, should I run the brakes ground wire separate from the ground I’m using for the lights?
asked by: Terrance H
Helpful Expert Reply:
For the brake wire on your 7,000lb car hauler you will want to use a 12 Gauge Wire # 12-1-1 for the power wire. The ground wire can either be grounded to the frame or you can use the Jacketed 2 Wire # 12-2-1 if you are not using the frame as a ground. I have included a chart below that has the suggested wiring sizes needed for a 7-way trailer harness.
This wiring will need to connect to your 7-Way Junction Box # HS381-9000 and Breakaway Kit # 20400.
Products Referenced in This Question
Jacketed 2 Wire (Brake Wire) - 12 Gauge - per Foot
- Wiring
- Wire
- Jacketed Wire
- 2 Wire
- 12 Gauge
- Deka
more information >
Hopkins Engager Push-To-Test Trailer Breakaway Kit with Built-In Battery Charger - Top Load
- Trailer Breakaway Kit
- Kit with Charger
- Top Load
- Single-axle
- Tandem-axle
- LED Tester
- Hopkins
more information >
Wiring Kit for Hydrastar Electric Over Hydraulic Actuators
- Accessories and Parts
- Brake Actuator
- Disc Brakes
- Hydraulic Drum Brakes
- Wiring
- Hydrastar
more information >
Product Page this Question was Asked From
Featured Help Information
Instructions
Continue Researching
- Shop: Jacketed 2 Wire (Brake Wire) - 12 Gauge - per Foot
- Shop: Grease Seal - Double Lip - ID 1.719" / OD 2.565" - for 3,500-lb Axles - Qty 2
- Search Results: tow bar safety cables
- Search Results: safety cable
- Shop: Bright Way Push-to-Test Trailer Breakaway Kit with 1-Amp Charger and 5 Ah Battery - Top Load
- Shop: Curt Single Hook, Coiled Safety Cables with S-Hooks - 42" Long - 7,500 lbs - Qty 2
- Shop: Tandem-Axle Trailer Hangers for 1-3/4" Wide Double-Eye Springs - 3-1/4" Tall Front
- Shop: Dexter Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 7,000 lbs
- Shop: Vehicle Tow Bar Wiring
- Shop: Bright Way Push-to-Test Trailer Breakaway Kit with 1-Amp Charger and 5 Ah Battery - Side Load
- Search Results: electric trailer brake wiring
- Search Results: ce23002
- Shop: Trailer Wiring
- Search Results: breakaway kit
- Search Results: dexter 7000 lb axle bearings
- Article: Testing Trailer Brake Magnets for Proper Function
- Search Results: oval trailer lights
- Video: Review of TruRyde Trailer Spindles - Replacement 42 EZ Lube Spindle - TRU37FR
- Q&A: What Would Cause a Trailer Equalizer to Flip Up to One Side
- Shop: Brake Controller
- Video: Optronics Fusion LED Trailer Tail Light Installation
- Video: Review of Peterson Trailer Lights - Tail Lights - 880K-7
- Q&A: How to Know When Trailer Brake Magnets are Worn Out and Need Replacing
- Q&A: Separating Out a Combined Brake Light and Turn Signal to Have Separate Turn Signals and Brake Lights
- Q&A: Difference in Side Wind Operated A-Frame Jack and Top Wind A-Frame Jack
- Q&A: Do Hubs/Drums Need to be Replaced When Changing Braking Assemblies
- Q&A: What Is Hole Size For Mounting 2 Inch Round Trailer Lights With Rubber Grommet
- Q&A: Upgrading 4-Way of Trailer to 7-Way to Wire Battery for Powering Trailer Interior/Exterior Lights
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Article: How to Accurately Measure Trailer Leaf Springs