Curt Manufacturing 57040 7-Pole Round to 4-Flat Trailer Wiring Adapter

Convert your vehicle’s 7-pole round socket to a 4-flat trailer plug with this compact, plug-and-play adapter — no cutting or splicing needed.

🔧 Key Features:

• 🔌 7-pole round male input — connects to your vehicle’s 7-pin round socket

• 🔄 4-flat female output — supports tail lights, turn signals & brake lights

• 🪛 Simple plug-and-play design — no wiring modifications required

• 🛡️ Durable plastic housing — resists corrosion and road wear

• 🚚 Compact and lightweight — easy to carry or store when not in use