Adapter From 4-Way Vehicle Side to 7-Way Trailer Side Connection
Question:
I bought this connector as my car has the 4 flat connector and the boat trailer has the 7 pole round connector. The trailer does not have back up lights so the additional wires I assume dont need to be conrrected to anything. My question is, do you have an adapter where I dont have to drill into the trailer for the ground? I havent been able to find one to connect to the trailer and then into the 4 flat on the car.
asked by: Frank
Expert Reply:
The Tow Ready Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector # 30717 will connect to the vehicle side so the ground wire will need to be connected to your vehicle not the trailer. That ground wire is required for proper function of your adapter. The other wires if not used can be taped up and stored out of the way. I recommend using the mounting bracket # 18138 and the no drill # 18140 to secure this adapter.
Since the trailer has a 7-way connection, it is very possible that it has brakes and may need the reverse function connected to the yellow wire for a reverse lockout on a surge brake actuating coupler.
If you have the 7-Pole Round pin and need the adapter to the 7-way Blade, I recommend the Custer Trailer Connector Adapter w/ Dust Cover - 7-Pole Round Pin to 7-Way Blade # F77R.
Products Referenced in This Question
No-Drill Mount for Electrical Mounting Bracket - Short
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 4 Flat
- 5 Flat
- 4 Round
- 5 Round
- Tow Ready
more information >
Custer Trailer Connector Adapter w/ Dust Cover - 7-Pole Round Pin to 7-Way Blade
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 0 - 5 Feet Long
- 7 Round - Blade
- Plug and Lead
- 7 Round - Round
- Brophy
more information >
Product Page this Question was Asked From
Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 0 - 5 Feet Long
- 4 Flat
- Plug and Lead
- 7 Round - Blade
- Tow Ready
more information >
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Will Bolt Trailer Hitch Lock part # BL7023582 Fit 2-1/2 inch Hitch on a 2011 GMC Sierra
- Q&A: Adjusting Dexter 10K Electric Trailer Brakes
- Q&A: Which Bolt Locking Hitch Pin Can be Keyed to a 2014 GMC Sierra 1500
- Q&A: Does BOLT Trailer Hitch Receiver Lock For GM Center Cut Key Fit 2021 Chevy Silverado
- Q&A: Factory Brake Controller Wiring Harness Location on a 2015 Mercedes Sprinter Motorhome
- Article: Surviving the Night in a Teardrop Camper...During a Winter Storm
- Q&A: Replacement RV AC Unit for Dometic B57915.711J0
- Q&A: Replacement Parts for ELX-45 Power Converter
- Article: Brake Controller Installation: Starting from Scratch
- Article: Trailer Wiring Diagrams
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Stability Control for Heavy Duty Vehicles
- Article: How to Choose the Right Trailer Hitch Class