Zhushan 7-Way & 4-Pin Trailer Plug Kit with Bracket — Fits 2009–2023 Trucks, Weatherproof Copper Contacts

The Zhushan 7-way blade and 4-pin flat trailer plug kit is a dual-connection tow wiring harness that combines a 7-way socket and a 4-pin flat plug on a pre-drilled metal bracket for quick, weatherproof trailer hookups.

This compact kit consolidates two common trailer connections into a single mounting assembly compatible with popular trucks and SUVs from 2009–2023, including Ford F-150/F-250, Ram, Chevy, and GMC models. Built with high-purity copper terminals and spring-loaded dust covers, the assembly prioritizes consistent electrical flow and protection from moisture and road debris. The included bracket and hardware simplify installation and accept direct replacement of many factory bumper harnesses, making it a practical upgrade for owners who switch between flat four-pin trailers and seven-pin brake-equipped trailers.

How does this kit simplify connecting different trailers?

The Zhushan adapter places both the 7-way round socket and the 4-pin flat plug on one bracket, so you don’t need separate mounts or adapters when towing different trailers. Although the two sockets share one housing and cannot be used simultaneously, the arrangement reduces clutter and speeds switching between trailer types.

• Combined 7-way and 4-pin connections on one bracket for space-saving mounting
• Pre-drilled metal bracket and hardware included for direct bumper or frame attachment
• Direct replacement fit for many factory bumper harnesses

What electrical quality and durability features does it offer?

This harness uses high-purity copper terminals to lower resistance, minimize voltage drop, and reduce heat under load. Spring-loaded dust covers and a sealed connector design guard against water, corrosion, and road contaminants for longer-lasting performance in wet and salty conditions.

• Premium copper contacts for reliable conductivity and reduced voltage loss
• Weatherproof, spring-loaded dust covers to keep out moisture and debris
• Robust housing and hardware designed for rugged towing environments

How straightforward is installation and compatibility with my truck?

The kit is engineered to match common factory bumper wiring mounting points and wiring standards used on many trucks and SUVs from 2009–2023. It arrives with a pre-drilled bracket and mounting hardware so you can bolt it into place and connect to existing vehicle wiring with standard trailer harness techniques.

• Pre-drilled metal bracket and included bolts for quick mounting
• Fits a wide range of Ford, Ram, Chevy, and GMC pickup models (2009–2023)
• Wiring follows standard 7-way and 4-pin color/terminal conventions for easy hookups

What should I know about use, limitations, and service?

While both connectors are mounted together for convenience, they are not designed to be used simultaneously, so choose the correct connector for the trailer you are towing. Zhushan backs the product with a one-year warranty and customer support for any quality concerns.

• Sockets cannot be energized at the same time; use only the required connector for your trailer
• Follow vehicle wiring best practices and fuse/tow package guidelines when installing
• One-year warranty and Zhushan after-sale support for product issues

Who is this for: This dual-connection trailer plug kit is aimed at truck and SUV owners who regularly tow different trailer types — from small utility trailers using a 4-pin flat to campers and brake-equipped trailers needing a 7-way connection. It’s a practical choice for DIY installers, fleet vehicles, and anyone replacing a damaged factory bumper harness who wants a durable, weather-resistant mounting solution that keeps both connector types ready to use.