Jetuplusllc 7-Way + 4-Pin Trailer Wiring Harness, Weather-Sealed Receptacle, Universal Bumper Mount

A ready-to-install 7-way + 4-pin trailer wiring harness and mounting kit that adapts a USCAR factory plug to power lights, brakes, reverse, battery feed and ground with a weather-sealed receptacle.

This Jetuplusllc installation kit gives you a complete trailer electrical connection solution: a multi-function harness, color-coded USCAR wiring, corrosion-resistant brass terminals and a universal bumper-mount bracket. It’s designed to join a vehicle’s factory tow harness to common trailer systems quickly and neatly, so you can tow with consistent electrical performance and a tidy installation.

How does this kit connect my truck to a trailer?

The harness links your vehicle’s existing USCAR tow plug to a multi-function receptacle that supports both 7-way blade and 4-pin flat trailer plugs. Color-coded wires match standard trailer circuits so each function is routed correctly without guesswork.

• 7-way blade for brake controller, battery feed, and multiple lights
• 4-pin flat for essential tail, brake and turn signal circuits
• Color-coded USCAR wiring for direct factory compatibility
• Ground lead and fused battery feed included where required

What features ensure reliable performance in all conditions?

This assembly uses a weather-sealed receptacle and brass terminals for dependable connections that resist corrosion and moisture. The materials and design reduce electrical failures caused by exposure, while the mounting bracket secures the socket in a protected, accessible spot.

• Weather seal gasket to keep out water and dirt
• Corrosion-resistant brass terminals for long-term conductivity
• Sturdy plastic housing that resists road debris and vibration
• Secure mounting bracket to stabilize the connector on the bumper

How difficult is installation and what tools or steps are needed?

Installation is intended to be straightforward for anyone familiar with basic vehicle wiring and hand tools. The harness is a custom-fit style that plugs into a factory tow harness location; minor drilling may be required for the universal bracket depending on vehicle bumper design.

• Plugs into existing USCAR factory tow connector—no splicing when matching sockets
• Bracket mounts to bumper with common hand tools and hardware
• Color-coded leads simplify circuit verification and testing
• Basic crimping or tightening tools recommended for secure terminal connections

Which vehicles and trailer types will this harness work with?

This Multi-Tow kit fits many U.S. vehicles equipped with a factory tow harness and a USCAR-style plug, including popular Chevy/GM, Toyota, Ford, and Dodge models. It supports standard US trailer wiring schemes for lights, brakes, reverse and a 12V auxiliary battery feed.

• Universal design for Chevy/GM, Toyota, Ford, Dodge with tow harness
• Compatible with trailers using 7-way blade or 4-pin flat connections
• Accepts standard tail, turn, brake, reverse and battery circuits
• Intended for USCAR plug-equipped factory tow sockets

Who is this for: The Jetuplusllc 7-Way Trailer Tow Harness Installation Kit is suited for vehicle owners, fleet managers and DIY mechanics who need a tidy, dependable trailer electrical hookup that integrates with factory tow wiring. Choose this kit if you want a weather-resistant receptacle, color-coded USCAR compatibility and a universal bumper-mounted bracket to support towing lights, electric brakes and auxiliary battery power without complex rewiring.