Looking For Wiring Harness For Factory Harness On 1999 Ford F-350
Updated 05/11/2026 | Published 05/06/2026
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Question:
I have a 99 F350 XL Xtra cab V10 Dually.. is there any tow connection to plug into the factory harness.. I have 2 plugs coming off the factory harness, thanks ??
asked by: RON M
Expert Reply:
Hello Ron, thanks for reaching out. Yes, there is a harness that hooks up to the factory harness on a 1999 Ford F-350. The thing is this vehicle will have one of two types of connector for this model year. It's either a round plug or a rectangular plug so you'll want to check and verify which one you have.
For the rectangular plug you can use the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # C55243.
If it's the round plug, use the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # C55774.
What kind of trailer will you be hauling?
(click to enlarge)
Tyler G.
5/9/2026
I bought one for my 2000 f350, it fit perfectly plugged right into the factory harness
Jesse M.
5/11/2026
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Factory Tow Package
- 7 Blade
- Plug and Lead
- Plug-In
- Visible
- CURT
more information >
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Ron M.
5/8/2026
I have round and rectangle plugs, the rectangle is currently connected to a 7 pin, I want to use a 7 blade for my 5th wheel.