Compatibility of Boat Trailer with Electric Brakes With 7-Way Extension Adapter
Question:
Will this extension also operate brakes on boat trailer with electric brakes....blinkers and light work...my old one had 6 pins with center on 7 way..this one only has 4 pins..
asked by: Rick S
Expert Reply:
The Curt Trailer Connector Adapter - 7-Way RV Style to 5-Way Flat - 60" Cord # C57281 will give you the lights, turn signals, and reverse lockout that could be used for a hydraulic surge brake lockout. It does not give you the electric brake function.
It sounds like you only have a 4-way but want a 5-way for electric brakes, but it also sounds like you have a 7 way to convert. My recommendation is to change the trailer side wiring using the Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector # HS381-9000 to give you all your features and simply disconnect the electrical before putting the trailer in the water.
Products Referenced in This Question
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
Curt Trailer Connector Adapter - 7-Way RV Style to 5-Way Flat - 60" Cord
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 0 - 5 Feet Long
- 7 Round - Blade
- Plug and Lead
- 5 Flat
- CURT
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Curt Trailer Connector Adapter - 7-Way RV Style to 5-Way Flat - 60" Cord
- Shop: 7-Pole Blade to 5-Pole Flat Connector Wired Trailer Adapter - Coiled Cable - 94-1/2" Long
- Shop: Timbren Axle-Less Trailer Suspension w/ Idler Hubs - Standard Duty - No Drop - 5 on 4-1/2 - 2K
- Shop: Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Shop: Kenda 5.30-12 Bias Trailer Tire with 12" Galvanized Wheel - 5 on 4-1/2 - Load Range C
- Shop: Trailer Wiring
- Shop: Bargman 7-Way, RV-Style Connector w/ 6' Long Coiled Cable - Trailer End
- Shop: Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,200 lbs
- Video: Curt Wiring - Wiring Adapters - C57281 Review
- Search Results: 5 way trailer wiring
- Search Results: spare tire bracket
- Q&A: Adapter For 7-Way on Vehicle to 5-Way on Trailer
- Video: Reese Wiring - Wiring Adapters - 78118 Review
- Video: Optronics Wiring - Trailer Connectors - A40W5B Review
- Video: Demco Bolt-On Swivel Jack Spare Tire Carrier Review
- Video: etrailer Radius End 4-Leaf Slipper Spring Installation
- Video: Buyers Products Trailer Wiring Junction Box Review
- Video: Timbren Silent Ride Suspension Review
- Q&A: Which Lift Kit Fits 2022 Airstream Flying Cloud 30FB
- Article: Trailer Wiring Diagrams
- Q&A: Big Tex Trailer Ramp Replacement Springs
- Q&A: Where Does Sliding Lock of 2019 Triton EZ Loader Trailer Mount on the Tongue?
- Q&A: Longest Gray Water Drain Hose
- Q&A: Availability of Water Cooler Holder
- Q&A: Can Larger Off-Road Wheels And Tires Be Installed On 2020 Forest River Cascade 16BHS Travel Trailer?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: How to Choose a High-Low Adapter
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)
- Article: How to Measure for Trailer Hitch Drop
- Article: Double-Eye Trailer Suspension System Review
on Trailer Wiring
Doug S.
6/16/2020
What does the 5th pole of the flat connector correspond to on the 7 pole towing end of the C57281 Adapter? I'm looking for a 7 pole to 5 pole with the 5th pole being the 12v power wire.