MECMO 7-Way Blade & 4-Way Flat Trailer Wiring Adapter 42145 — OE-Fit with Mounting Bracket

MECMO 42145 is a dual-output trailer wiring adapter that converts your factory tow socket into both a 7-way blade RV outlet and a 4-way flat connector for simple, reliable towing.

This rugged adapter was engineered to match OE fitment and function for many Dodge, Jeep, Chrysler, Mercedes and Mitsubishi models from the 2000s and early 2010s. It plugs into the factory tow package port so you can power lights, turn signals, brake circuits, reverse lamps, electric brake control and a 12V auxiliary feed without cutting or splicing vehicle wiring. The assembly includes a mounting bracket and hardware for a tidy, OEM-like installation and features weatherproof covers and durable terminals for long life outdoors.

Which vehicles will this MECMO adapter fit?

This adapter is intended to directly replace the factory-style tow socket used on a range of Chrysler, Dodge and Jeep platforms and several other makes. Check your vehicle’s model year range and verify the factory tow port shape to confirm compatibility before ordering.

• Common fits include 2000–2009 Dodge Ram and 2000–2010 Dodge Dakota models.
• Also compatible with many Jeep Grand Cherokee, Wrangler, Commander and Liberty model years listed in the fitment.
• Additional OEM-style fitment for certain Chrysler, Mercedes GL-Class and Mitsubishi Raider models.

How does this adapter simplify towing different trailers?

The MECMO 42145 combines a 7-pin blade receptacle and a 4-pin flat outlet in one vehicle-side unit, so you can hook up RV-style trailers or smaller 4-way trailers without swapping connectors. It converts the vehicle’s existing 4-wire flat input into both outputs while preserving brake and auxiliary circuits when present.

• One plug delivers 7-way functions: stop, turn, tail, reverse, trailer brake and 12V auxiliary.
• Integrated 4-way flat output for basic lighting-only trailers and utility trailers.
• Spring-loaded dust covers and a 180° opening 7-pin socket keep contacts clean and accessible.

Is installation difficult and will it affect factory wiring?

Installation is a straightforward, plug-and-play replacement—there’s no cutting, splicing or complex rewiring required for vehicles with the matching OEM tow port. The package includes the mounting bracket and hardware so the adapter mounts securely and looks factory-installed once in place.

• Direct insert into the factory tow package port—no specialized tools required.
• All-in-one assembly replaces OE part 56038366AB with the same connector footprint.
• Mounting bracket and fasteners included for neat, stable installation.

What durability features protect the connector outdoors?

MECMO designed this adapter for regular tow use in outdoor conditions, prioritizing sealed contacts and robust plastics to resist water and dirt. Dust covers and a tight-fit housing minimize corrosion risk, and the molded connector sustains repeated plug cycles for dependable service.

• Weather-resistant housing with dust and water protection at both outputs.
• Spring-loaded cover for the 4-way and a tight-fitting cap for the 7-way socket.
• Sturdy molded plastic and reinforced terminals for long-term wear resistance.

Who is this for: Drivers who tow different trailer types and need an OEM-style, trouble-free replacement for a factory tow socket will benefit most from the MECMO 42145. It suits owners of compatible Dodge, Jeep, Chrysler and other listed vehicles who want a sealed, integrated 7-way and 4-way solution that installs cleanly without modifying vehicle wiring.