Tow Ready 7-Way Trailer Wiring Adapter Upgrade – Fits 1999-2001 Ford Super Duty F-250 / F-350 / F-450 / F-550 (Part #118243)
Upgrade your factory 4-flat connector to a full 7-way OEM-style trailer connection with the Tow Ready 118243 harness kit. Engineered for 1999–2001 Ford Super Duty trucks, this plug-and-play system installs cleanly into existing wiring — no cutting or splicing required. Includes OEM connectors, weather-sealed wiring, relays, and fuses for reliable brake, charge, and lighting circuits.
Specifications
| Part Number | 118243 |
| Brand | Tow Ready / Tekonsha |
| Vehicle Fitment | Ford Super Duty F-250 / F-350 / F-450 / F-550 (1999–2001) |
| Connector Type | Upgrades Factory 4-Flat to 7-Way Blade (RV Style) |
| Power Source | 12 V Battery Feed with Inline Fuse Protection |
| Included Relays / Fuses | Yes – Relay Pack and Factory-Style Fuse Set Included |
| Mount Location | Rear Bumper / Hitch Area and Under-Hood Fuse Panel |
| Installation | Plug-In OEM Harness – No Splicing Required |
Included Components
- OEM-Fit 7-Way Connector Harness with Weather-Sealed Plugs
- Relay Module and Mounting Bracket
- Fuse Assembly for Trailer Charge and Brake Power
- Zip Ties and Hardware for Installation
- Detailed Installation Instructions
Fitment & Use
Designed for Ford Super Duty trucks (1999–2001) with factory 4-flat connectors. Provides a complete OEM-style 7-way trailer output for electric brake controllers, battery charge lines, and auxiliary power circuits. Perfect for towing campers, cargo trailers, and equipment with standard 7-blade connectors.
Why Upgrade to Tow Ready 118243
- OEM-grade plugs and terminals ensure tight, weather-proof connections.
- Complete kit with fuses and relays — no additional parts needed.
- Plug-and-play design installs quickly with factory mounting points.
- Compatible with Tekonsha, Draw-Tite, and Reese brake controllers.
Shipping
We ship quickly and carefully, with tracking provided on every order. Most items ship the same or next business day. Your parts will arrive safely and on time, ready to use.
Returns & Guarantee
Your satisfaction is guaranteed. Returns, refunds, and exchanges are accepted — no hassle. We stand behind every part we sell, so you can purchase with confidence.
Committed to Customer Service
At R and P Carriages, we believe in treating our customers like family. Whether you need a small replacement part or a complete trailer service, we’re here to help with friendly, expert support every step of the way.
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