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Curt T-Connector or T-One Wiring Harness on 2017 Ford Transit T350?


There are two wiring harness for the trailer hitch, what are the differences, is one of them better? I am leaning towards the 118643 to go with my C13193 for my 2017 Ford Transit T350 Passenger Van. Help me please. Thanks.


Expert Reply:

Both the Curt T-Connector # C56327 and the T-One # 118643 are great wiring harnesses with very similar features and functions. Both are 4-pole flat trailer connectors with their own technology to minimize the draw on your tail lights and make the best and safest connection.

The main difference between the two is current output. The Curt harness can deliver a full 3-amps per stop/turn circuit and 6-amps for the tail lights. The T-One harness' output is 2.1-amps and 3.75-amps maximum. While they are equal in other areas, it is better to have higher output capacity to help avoid the risk of overload. It also doesn't hurt to match a Curt wiring harness # C56327 with your Curt hitch # C13193.

You can also pick up other items like Dielectric Grease # 11755 (for the plugs on your Ford and the connector) or a mounting bracket # 118149 here at

expert reply by:
Evangeline M

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