Electrical

FIT FINDER

Trailer Wiring Adapters

Select your vehicle and trailer connectors below to find the correct wiring adapter for you.

SELECT YOUR

VEHICLE AND TRAILER CONNECTORS

VEHICLE WIRING PLUG

TRAILER WIRING PLUG

4-Flat

5-Flat

6-Round

7-Blade

7-Round

4-Flat

5-Flat

6-Round

7-Blade

7-Round

Explore Expert Info
on Electrical
Explore Expert Info
on Electrical
etrailer.com is the world’s leading online retailer of custom-fit towing accessories. Whether you’re starting from scratch or adapting your existing 4-way or 7-way connectors, we’re happy to find you the right wiring setup and deliver it right to your door. Towing a trailer? Our Fitguide takes the guesswork out of finding what you need. Just tell us your vehicle year, make, and model, and we’ll tell you exactly what will fit.Towing a fifth wheel? We’ve got you covered here, too. Tell us about your truck, choose your hitch, and let us recommend the best wiring harness for your setup. Towing a vehicle? We’ve got everything you need to wire your flat tow setup, from taillight kits to braking systems. Plus, we’ll let you know if you need any additional custom-fit parts for your particular vehicle. In short, whatever you’re towing, our experts are here to help you figure out how to wire it. With over 73 years of assisting our neighbors and customers, over 1 million photos and videos taken to make sure you’re getting exactly what you need, and over 35 thousand installations completed, we’ve got the product know-how and experience to help you make the right choices for the job at hand.