PKDOAX Trailer Connector — 7-Way Blade & 5-Way Flat Dual-Outlet, 4‑Way Compatible, Reinforced Housing

The PKDOAX Multi-Tow Trailer Connector combines a 7-way RV blade outlet and a 5-way flat outlet (with 4-way compatibility) into a single vehicle-side connector for flexible towing connections.

Designed for drivers who tow different trailers or rent trailers frequently, this dual-outlet connector removes the need to swap adapters on the ball or trailer. Built with a reinforced plastic housing, a 180-degree opening lid, and covered contacts, it keeps wiring accessible while helping protect terminals from dirt and moisture. The package includes a mounting bracket and installation hardware so you can secure it to a compatible tow vehicle.

How does the PKDOAX connector simplify switching trailers?

Rather than carrying multiple adapters, this unit gives two distinct outlets on one face: a 7-way blade for RV-style plugs and a 5-way flat that also accepts standard 4-way flat plugs. That means you can plug in a variety of trailer wiring types directly, with no extra converters required in many cases.

• One vehicle-side connector with both 7-way and 5-way outlets
• 5-way flat accommodates standard 4-way flat plugs
• Saves space and reduces adapter clutter in the trailer compartment

What electrical functions are supported by the 7-way and 5-way outlets?

The 7-way blade supports lighting, electric brake control, reverse, and auxiliary circuits when the vehicle wiring supplies those functions. The 5-way flat provides the common lighting circuits and an extra contact; inserting a 4-way flat uses the basic lighting circuits only.

• 7-way: tail, brake, left/right indicators, reverse, auxiliary power when wired
• 5-way: essential lighting plus a fifth contact for auxiliary functions
• 4-way compatibility: uses the four core lighting circuits from the 5-way outlet

How does the connector handle moisture, debris, and everyday wear?

The connector uses a reinforced plastic housing and covered contacts to reduce exposure to the elements. The oversized lid opens up to 180 degrees, allowing easier access for plugging and unplugging without forcing the cover, while the closed position helps keep out dirt and road spray.

• Reinforced housing resists impact and road debris
• 180-degree flip-up lid for easier access and storage
• Covered contacts help reduce corrosion risk and prolong connector life

What’s included and what should I prepare for installation?

The connector ships with a mounting bracket and installation hardware, but it requires wiring to be connected to the vehicle’s trailer circuits. Confirm wire functions and pin assignments for your vehicle before installation, and ensure you have the appropriate tools and wire terminals for secure connections.

• Included: PKDOAX connector, mounting bracket, and installation hardware
• Required: matching vehicle wiring, basic wiring tools, and knowledge of pin assignments
• Tip: verify available mounting space and cable routing before drilling or cutting

Who this is for: drivers who tow multiple trailer types, fleet vehicles that serve varied trailers, rental operators, and anyone tired of juggling adapters. If you need a single, robust vehicle-side connector that accepts RV-style 7-pin blades and flat trailer plugs (including standard 4-way), the PKDOAX Multi-Tow Trailer Connector provides a durable, space-saving solution—just confirm vehicle wiring compatibility and pin functions before installation.