Vehicle-specific plug-and-play harness that connects to your Mazda CX-5's factory taillight wiring, providing a standard 4-way flat trailer connection with no cutting or splicing required.
If your Mazda CX-5 isn't already equipped with wiring for towing a trailer, the Curt 56377 T-Connector is the ideal solution. This plug-and-play electrical device connects into your vehicle's existing wiring using OEM-compatible connectors, eliminating the need for cutting, splicing, or soldering during installation.
Built specifically for select 2017-2021 Mazda CX-5 models, it's a circuit-protected, powered 2-wire system that provides a standard 4-way flat output to power your trailer's taillights, brake lights, and turn signals. Owners commonly pair it with Curt's optional 4-pole mounting bracket for a clean, finished installation on the hitch.
Standard connection for trailer lighting
Built for select 2017-2021 model years
Plug-and-play connection to factory wiring
Reliable, worry-free towing performance
This harness uses a 2-wire electrical system, rated for 6.0 amps on the tail light circuit and 3.0 amps on the turn and brake circuits. A separate mounting bracket for the 4-pole connector is available and commonly recommended alongside this harness for a cleaner installation. Part Number: 56377 | Also Listed As: C56377
In The Package: • Vehicle-Specific 4-Way Flat Wiring Harness