Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2000 Toyota 4Runner
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2000 Toyota 4Runner
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Wiring a trailer can be tricky, but this harness keeps it simple. The Curt T-Connector plugs right into existing factory wiring under the trunk liner, so there’s no need to cut or splice any wires. It includes a powered converter and all the hardware needed for a complete install, giving you a clean setup with factory-style connections.
Having the 4-way connector stored inside the vehicle keeps it out of the rain and road debris that cause corrosion and damage. When it’s time to tow, just run the connector out through the rear hatch and hook up your trailer. This small detail makes a big difference in how long your wiring lasts and how reliably it works.
Once installed, the harness provides a standard 4-pole flat connector for your trailer’s running lights, turn signals, and brake lights. It’s powered through an included 10-amp in-line fuse that connects to the vehicle’s battery, so your trailer lights get consistent power without overloading factory circuits.
If you ever need to tow with electric brakes or add a 7-way connector, this harness is a solid starting point. With the 4-pole already in place, you can pair it with a kit like part # ETBC7 to hardwire a 7-way and add a brake controller. This setup gives you flexibility for towing different trailers down the road.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
We're happy with the wiring. It works just like it says. We would order from retailer again.
Instuctions included were precise. Connecting the 'hot wire' the battery was inconvenient for an older guy, but less than an hour to complete.
Unlike other trailer hitch kits, this one easily installed and works well.
Arrived on time as promised; I did choose UPS for shipping which was more expensive however received kit on time.
Everything worked great. However there is no need to run the long black wire to the battery as the Mulano has a hot wire there already for use. You should add that to your manual. Thanks.
Info for this part was:
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Tom
2/21/2026
Working great! Note what I said in original Al post about not needing to run the black wire to the battery on the Murano.