



CURT's 56478 is a vehicle-specific trailer wiring harness for Ram ProMaster 1500, 2500, 3500. 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 7.5 A.
- 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, PWM-compatible
- 7.5 A on the turn and brake circuits
- Surface-mount circuitry
- Dust cover included
- One-year limited warranty
Specifications
| Part number | 56478 |
|---|---|
| Type | Custom Wiring Harness |
| Output | 4-Way Flat |
| Converter | Universal, Potted, Powered, Protected, PWM |
| Vehicle lighting system | 3-wire |
| Tail light circuits | 7.5 A |
| Turn / brake circuits | 7.5 A |
| Installation | Novice |
| Warranty | One-year limited |
| Fits | Ram ProMaster 1500, 2500, 3500 |