Overview
The Tow Ready 118702 is a 7-way flat pin to 4-way flat trailer light adapter. It plugs into the factory harness and provides a pigtail that the trailer lights plug into.
Key features
- 7-way flat pin input
- 4-way flat output through a pigtail for trailer lights
- Plugs into the factory harness
- It is universal fit.
Using a trailer light adapter
A 7-way to 4-way adapter lets a tow vehicle with a 7-way factory plug power a trailer that only uses a 4-way connector. The adapter sits between the two plugs, so the trailer’s lights, and the pigtail that carries them, are fed from the vehicle’s wiring without any splicing on the trailer side.
Before buying, match the adapter to both ends of the setup. The vehicle side needs a compatible factory plug, and the trailer side needs the pigtail to reach the light wiring. A loose connection at either end can cause flickering or dead lights, so plug the adapter in firmly and recheck it after the first stops.
- Confirm which plug your tow vehicle has before buying
- Keep the pigtail routed away from the hitch
- Test each light function before towing
Specifications
| Brand | Tow Ready |
|---|---|
| Part number | 118702 |
| UPC | 1611806651 |
| Input connector | 7-way flat pin |
| Output connector | 4-way flat |
| Connection | Pigtail for trailer lights |
Vehicle fitment
It is universal fit with no vehicle models named. The factory harness connector on your tow vehicle decides whether it plugs in, so check that connector first.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Plug the adapter into the vehicle’s factory harness, then plug the trailer’s lights into the pigtail.
What’s included
The adapter with its pigtail is the item described.





