4 Way Bracket | etrailer Plugs into the existing 4-way circuit breaker Pre-wired 7-way trailer connector mounts easily at rear of vehicle with mounting bracket (sold separately) Plugs into existing 4-way trailer connector on vehicle 30-Amp and 40-amp circuit. Wiring Adapters. Single-Function Adapter. 7 Blade. 4 Flat. Curt 4 way flat mounting bracket | eBay www›Search›4 way flat mounting bracket3 product ratings - Hopkins 48595 4-Way Flat Mounting Bracket Bracket Folds Over Flat $4 Trending at $7 Trending price is based on prices over last 90 days.