Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2004 Ford Expedition
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2004 Ford Expedition
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Getting your trailer lights working shouldn’t mean tearing into your van’s wiring. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, part #C55338, plugs right into the factory connectors behind the tail lights. No splicing, soldering, or guesswork—just plug it in and it’s ready to go.
The harness connects directly behind the tail lights, keeping the install clean and straightforward. Once the trim panels are removed, the connectors snap together with the factory plugs. It’s a direct fit that saves time and gets your trailer wiring ready fast.
The built-in 4-pole flat connector provides everything needed for standard trailer lighting—running lights, turn signals, and brake lights. When it’s not in use, the connector can rest neatly inside the cargo area to stay protected from dirt and weather.
If you decide to tow a trailer with brakes later on, this harness is a solid starting point. It can be paired with a universal wiring kit for a trailer brake controller when you’re ready to expand your setup, making it easy to step up from basic lighting to full towing capability.
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