

CURT 56505 is a custom wiring harness with a 4-way flat output for 2023-2026 Kia Niro/Niro EV.
It plugs into the tail light assemblies rather than splicing into them, so the factory wiring stays intact. The output is a 4-way flat connector, which carries tail lights, brake lights and turn signals. Circuit protection is rated 3.0 A on the turn and brake circuits and 6.0 A on the tail lights.
- 4-way flat output
- Plugs into the tail light assemblies, no cutting or splicing
- For 3-wire vehicle lighting
- Converter is potted against moisture, battery-powered, circuit-protected
- 3.0 A on the turn and brake circuits
- 6.0 A on the tail light circuit
- Surface-mount circuitry
- Dust cover included
- One-year limited warranty
- Requires a connection to the vehicle battery
Specifications
| Part number | 56505 |
|---|---|
| Brand | CURT |
| Type | Custom Wiring Harness |
| Output | 4-Way Flat |
| Converter | Circuit Protected, Powered, Potted |
| Vehicle lighting system | 3-wire |
| Tail light circuits | 6.0 A |
| Turn / brake circuits | 3.0 A |
| Installation | Moderate |
| Product weight | 1.7 lb |
| Warranty | One-year limited |
Vehicle fitment
| Years | Vehicle | Configuration |
|---|---|---|
| 2023-2026 | Kia Niro | All |
| 2023-2026 | Kia Niro EV | All |
Fitment and installation notes
- Includes fuse holder, battery connection wiring and other necessary wiring components