Convert a vehicle-side 4-way flat connection to a standard 7-way RV blade trailer socket. Integrated LED tester, mounting bracket, protective wiring loom, and dust cover provide a convenient upgrade for additional trailer functions.
The Curt 57676 allows a tow vehicle equipped with a standard 4-way flat connector to connect to a trailer using a 7-way RV blade plug. The existing 4-flat plugs directly into the adapter to provide basic trailer lighting functions, while additional wiring leads allow the remaining 7-way circuits to be connected as needed.
An integrated LED tester provides a convenient way to confirm proper vehicle-side wiring operation. The adapter also includes a metal mounting bracket, spring-loaded dust cover, protective slit loom, and required installation hardware for a clean permanent installation near the hitch.
Adapts a vehicle-side 4-flat connector for trailers equipped with a 7-way RV blade plug
Integrated tester helps confirm proper function of the vehicle's wiring connection
Supports lighting, reverse, trailer brake, and auxiliary power circuits when properly wired
Included metal bracket provides a secure permanent mounting location
Plugging the vehicle's 4-way flat connector into Curt 57676 provides the basic trailer lighting circuits only. Additional wiring is required to activate functions such as electric trailer brakes, reverse lights, and auxiliary 12V power.
In The Package: • Curt 57676 4-Way Flat to 7-Way RV Blade Adapter • Integrated LED Wiring Tester • 7-Way Socket with Spring-Loaded Cover • Metal Mounting Bracket • Installation Hardware • Additional 7-Way Wiring Leads
Curt 57676 converts a vehicle-side 4-way flat connection to a trailer-side 7-way RV blade connection. For a vehicle with a 7-way RV blade that needs to tow a trailer with a 4-flat plug, use Curt 57241 instead.