CURT 4-Pin Trailer Wiring Harness for Chevrolet Equinox & GMC Terrain — Vehicle-Side Plug-and-Play, Dust-Covered 4-Flat

The CURT 56094 is a vehicle-specific, plug-and-play 4-pin trailer wiring harness that adds a standard 4-flat connector to select Chevrolet Equinox and GMC Terrain models without cutting or splicing.

If your SUV didn’t come with a factory trailer connector, the CURT 56094 provides a clean, OEM-compatible electrical hookup so you can tow safely and legally. This custom T-connector uses vehicle-specific plugs that mate with the existing taillight wiring, delivering turn, stop and tail light signals to a trailer through a durable 4-way flat socket. It includes a dust cover and ergonomic socket design to keep the connection secure and protected when not in use.

How does the CURT 56094 install on my Equinox or Terrain?

Installation is designed to be straightforward: no wire cutting, splicing, or soldering is required. The harness uses vehicle-matched connectors that plug into the taillight assemblies, leaving factory wiring intact and reversible.

• Plug-and-play T-connector design fits factory taillight plugs.
• No permanent modifications or wiring splices needed.
• Includes mounting points and clips for tidy routing.

What functions does the 4-pin connector support?

The 4-flat socket transmits basic trailer lighting signals: running lights, turn signals and brake lights. This standard configuration is widely compatible with utility trailers, small boat trailers and most light-duty trailers used for recreational or everyday hauling.

• Running/parking lights for trailer visibility.
• Left and right turn signal compatibility.
• Brake light feed for safe stopping indications.

Will this harness fit my vehicle and hold up to outdoor use?

The 56094 is engineered for specific model years of the Chevrolet Equinox and GMC Terrain; confirm vehicle compatibility using application data before purchasing. The harness is built with OEM-compatible connectors and includes a rubber dust cover to protect the 4-way flat socket from moisture and debris.

• Vehicle-specific connectors ensure a secure, factory-style fit.
• Durable materials and sealed connections resist road elements.
• Dust cover protects the connector when not towing.

Will this harness interfere with other vehicle electronics?

Because the CURT 56094 uses dedicated, vehicle-matched plugs into the taillight assemblies, it preserves factory wiring and avoids invasive splices. That reduces risk of electrical issues and keeps original vehicle systems intact.

• No cutting or splicing reduces error or short-circuit risk.
• OEM-compatible design maintains factory electrical integrity.
• Simple removal returns the vehicle to stock condition.

Who is this for? The CURT 56094 is intended for owners of select Chevrolet Equinox and GMC Terrain models who need a reliable, non-invasive trailer wiring solution. It’s ideal for recreational users hauling small boats or utility trailers, weekend DIYers who want fast, reversible installation, and anyone who prefers an OEM-style connector for dependable trailer lighting. Verify vehicle fitment, follow the included instructions for routing and securing the harness, and use the dust cover to extend connector life between trips.