Zhushan 7-Way Blade and 4-Pin Flat Trailer Plug Kit — Bracketed Dual-Connector for 2009–2023 Trucks, Copper Terminals

Zhushan’s 7-way blade and 4-pin flat trailer plug kit is a combined tow wiring connector and bracket that lets one vehicle switch between 7-pin trailer systems and 4-pin flat setups for safe, reliable towing.

This compact kit pairs a 7-way round socket with a 4-pin flat plug on a single mounting plate so you can tow different trailers without swapping harnesses. Built as a direct bumper-replacement-style unit for many Ford, Ram, Chevy and GMC trucks (2009–2023), it uses high-purity copper terminals and spring-loaded dust covers to resist voltage loss and the elements. The package includes a pre-drilled metal bracket, installation hardware, and a one-year warranty for added confidence.

How does the dual-connection design simplify towing chores?

The combined 7-way and 4-pin configuration puts two common trailer interfaces in one accessible location, eliminating the need to store or change separate adapters. Note that the sockets are not designed to operate simultaneously—each is used independently depending on trailer wiring requirements. This keeps your bumper area tidy and reduces connector wear from repeated swapping.

• 7-way round socket for powered brakes, reverse lights, and auxiliary circuits
• 4-pin flat plug for basic lighting and turn signal functions
• Single mounting bracket holds both connectors in factory-like position
• Sockets operate independently, not simultaneously

What makes the electrical connections durable and reliable?

Zhushan uses high-purity copper terminals to lower resistance and heat buildup during towing, which helps maintain steady voltage to trailer lights and brake systems. Spring-loaded dust covers protect contacts from moisture, salt, and grime, extending service life and reducing the chance of corrosion-related failures. The construction is suitable for routine road use and seasonal exposure.

• High-purity copper terminals for improved conductivity
• Spring-loaded dust caps to keep out water and debris
• Robust housing that resists road vibration and impact
• Less voltage drop for cleaner signal and brake performance

How difficult is installation and which vehicles fit this kit?

The kit is designed as a direct-style replacement for bumper-mounted trailer connectors on many full-size trucks and SUVs from 2009–2023. Installation uses the included pre-drilled metal bracket and basic hardware, making it achievable with common hand tools. Wiring follows standard trailer pinouts, so a technician or experienced DIYer can finish the job in a single session.

• Direct replacement format for Ford F-150/F-250, Ram, Chevy, GMC models
• Pre-drilled metal bracket and mounting hardware included
• Standard 7-pin and 4-pin wiring pinouts for straightforward hook-up
• Recommended: basic tools and a multimeter for verification

What protective features and after-sale support are provided?

The unit’s dust shields, robust metal bracket, and high-quality terminals deliver protection against corrosion and physical wear. Zhushan backs the product with a one-year warranty and customer support for quality issues, giving buyers a clear path for assistance if parts arrive damaged or underperform. This support complements the kit’s field-ready design.

• Spring-loaded covers to guard connectors from water and road debris
• Pre-drilled metal bracket reduces installation time and improves fit
• Included hardware for secure mounting to bumper or hitch plate
• One-year warranty and customer support from Zhushan

Who is this for? This Zhushan wiring kit suits truck and SUV owners who tow a mix of trailers — from basic utility trailers that use a 4-pin flat to larger trailers that require a 7-way connection for brakes and auxiliary power. It’s also a practical choice for fleet vehicles, RV owners, and anyone who wants a single, durable mounting solution that reduces connector swaps and keeps trailer wiring organized. Choose this kit when you need a rugged, copper-terminal connector assembly that fits popular 2009–2023 truck models and comes with a pre-drilled bracket and warranty-backed support.