Universal Wiring Adapter for US Vehicles – 7-Way Flat ↔ 13-Pin (ISO 11446)

Welcome to Weltmann Kfz-Teile. Our Uni-E Harness for US vehicles allows you to connect a US-style 7-Way flat socket to a European 13-pin trailer connector without splicing or modifying your vehicle’s wiring.

Available Adapter Types

US 7-Way Flat → EU 13-Pin Adapter – Plug-and-play, no rewiring needed. :contentReference[oaicite:4]{index=4}
EU 13-Pin → US 7-Way Flat Adapter – Use if your vehicle already has the European connector. :contentReference[oaicite:5]{index=5}
Combo Adapter (US & EU compatible) – Both connector types in one adapter for maximum flexibility. :contentReference[oaicite:6]{index=6}

Your Benefits at a Glance

Truly Plug-and-Play: Installs easily—no wiring changes required.
International Compatibility: Great for US-import vehicles or for switching between US and EU trailers.
Cost-Effective & Practical: Simple adapters ready to use—no engine-room modifications needed.

How to Choose the Right Adapter

Does your vehicle have a US-standard 7-Way socket? → Use the 7-Way to 13-Pin adapter.
Does it have a European 13-Pin socket? → Use the 13-Pin to 7-Way adapter.
Want full flexibility? → Get the combo adapter supporting both connectors.

FAQ – Frequently Asked Questions

What’s the difference between 7-Way and 13-Pin?
7-Way (ISO 1724) is the flat-style US plug; the 13-Pin (ISO 11446) is a round EU standard that offers enhanced sealing, more functions, and a secure lock. :contentReference[oaicite:7]{index=7}

Are these adapters safe and legal?
Yes—they preserve light functions like indicators and brake lights. For features like battery charging or permanent power, choose expanded versions.

Will I lose functionality?
No—for lighting only, the standard adapter works fine. For charging or advanced functions, select a specialized adapter with extended wiring.

Conclusion

The Uni-E Harness is a clean, effective solution for connecting European trailers to US vehicles—or vice versa. Just plug in and drive.