Will this work on a 2019 jeep

If it has the 4 way flat you can or if jeep has pig for that purpose near the back bumper

What gauge wire is used?

It looks like it is about 18 gauge. A little lighter than I would have wanted. I wired it with a 20 amp fuse and have not had any problems with overheating wires. I am pulling a medium sized camping trailer with full lights, in-line brake controller, and 3 wireless cameras.

Will the lights work if I don’t use the brake wires?

Dear Rasa, Here is a video includes 3 detail wiring diagram of 'MECMO Multi-tow 4 Pin to 7 Way and 4 Flat Adapter'. Since it sounds like you don't need the brake output you can leave the additional connections disconnected. All you will need to do is plug in your existing 4-way to the 4-way plug on the adapter. Once this is done, the 7-way connector will have the functionality of your 4-way. However, if your towed vehicle equip with brake light, you will still need to splice the brake wire to keep all function works. Thank you MECMO Service Team

Hi dear, MECMO trailer harness use only Amazon FBA which offers all customer free return and replacement. If you receive a defective product or the trailer adapter is under your expectation, you could return or ask for replacement through Amazon. It will be very convenience and does not charge you any fee for replacement in 30 days.

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MECMO Dual-Output 4-Way Flat to 7-Way RV Blade and 4-Way Flat Female Trailer Wiring Adapter Connector Kit, Adapt 4-Way Flat Vehicle-Side Socket to Multiple Trailer Plugs with Mounting Bracket

MECMO Dual-Output 4-Way Flat to 7-Way RV Blade and 4-Way Flat Female Trailer Wiring Adapter Connector Kit, Adapt 4-Way Flat Vehicle-Side Socket to Multiple Trailer Plugs with Mounting Bracket

Product ID: 533770644

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Details

Brand
MECMO
Material
Acrylonitrile
Item weight
0.56 Kilograms
Connector type
4-way flat
Wire diameter
1.63

🔌Dual 7-pin & 4-pin outputs

🧰All-in-one mounting kit included

🛡️Corrosion-resistant ABS & copper

Description

🚚 Double your towing power with MECMO’s all-in-one wiring adapter!

MOUNT LIKE A PRO - Complete mounting bracket, screws, and nuts included for a secure, professional-grade installation every time.
TOW TWICE THE TRAILERS - Dual-output design lets you connect both 7-way RV and 4-way flat plugs simultaneously for ultimate towing flexibility.
PLUG PLAY CONVENIENCE - Standardized 4-wire flat vehicle socket adapts seamlessly to multiple trailer wiring configurations without hassle.
CLEAN CONNECTIONS ALWAYS - Spring-loaded dust cover protects terminals from dirt and moisture, keeping your connections pristine and ready.
BUILT TO BRAVE THE ELEMENTS - Premium ABS plastic housing with tin-plated copper terminals ensures long-lasting corrosion resistance and reliable conductivity.

The MECMO Dual-Output Trailer Wiring Adapter converts a 4-wire flat vehicle socket into both a 7-pin blade RV outlet and a 4-way flat socket, enabling versatile trailer connections. Crafted from durable ABS plastic with corrosion-resistant tin-plated copper terminals, it includes a dust cover and a full mounting kit for secure, reliable, and clean installations—perfect for professionals and enthusiasts who demand flexibility and durability in their towing setup.

Specifications

Manufacturer	MECMO
Brand	MECMO
Model	4 pin to 7 pin adapter dual output; Commonly used with T-connectors or tail lamp converters with 4-way flat
Package Dimensions	19.99 x 14.4 x 8.41 cm; 558 g
Item model number	4 to 7 Pin Trailer Light Adapter
Manufacturer part number	MEUX2203-1
Item Weight	558 g

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