Oyviny Custom 4-Pin Trailer Wiring Harness 56325 for GMC Acadia, Cadillac XT5/XT6, Chevy Blazer, Buick Envision

Overview

Oyviny Custom 4-Pin Trailer Wiring Harness 56325 is designed to enhance the towing readiness of select GMC, Cadillac, Chevy, and Buick models. It provides a reliable 4-flat connection to power trailer tail lights, brake signals, and turn indicators, helping you stay visible and prepared when hitching a trailer.

Key Benefits

• Effortless plug-and-play installation with the OEM tow wiring harness—no cutting or splicing required.
• Durable 16 AWG bonded pure copper wires and a generous 77-inch length for flexible routing.
• Corrosion-resistant tin-plated terminals and a rubber dust cover protect the connector when not in use.
• Standard 4-flat connector compatibility supports a wide range of trailers for lighting and signaling.

Compatibility & Fit

Fits GMC Acadia models from 2017 to 2023, Chevrolet Blazer from 2019 to 2025, Buick Envision 2021-2025, Cadillac XT5 2017-2025, and XT6 2020-2025. The harness integrates with the factory tow package wiring for a seamless upgrade.

Installation & Practical Use

• Plug into the OEM tow package wiring harness; no modifications to the vehicle's electrical system are required.
• Route the 77-inch harness to avoid interference with underbody components and moving parts.
• Use the 4-flat connection to power trailer lighting for trailers, cargo carriers, or accessory trailers that rely on tail lights and signaling.

Note: This harness is designed to provide a reliable connection and compatibility with a wide range of trailers; actual performance can vary based on hitch setup, trailer wiring, and vehicle configuration.