Tekonsha 118283 Tow Harness 4-Flat to 6/7-Way
Tekonsha 118283 Tow Harness 4-Flat to 6/7-Way — Product description
The Tekonsha 118283 tow harness wiring package takes the 4-flat connector your tow vehicle came with and steps it up to a proper 6-way or 7-way plug. If you've moved up to a trailer that needs more than basic lights, this is how you wire in the extra circuits the right way.
If your tow vehicle came with a basic 4-flat connector and you're stepping up to a trailer that needs more, this Tekonsha tow harness wiring package is how you make the jump. It takes the 4-flat wiring you've already got and gives you a proper 6-way or 7-way connector at the bumper. No cutting into your factory harness and hoping for the best.
Here's the situation most folks run into. A 4-flat handles the basics, running lights, brake lights, and turn signals. That's fine for a small utility trailer. But the moment you're pulling something with electric brakes, or a camper that wants a 12-volt charge line and reverse lights, four pins won't cut it. You need the extra circuits a 6-way or 7-way connector carries. This package replaces the OEM harness and gets you there.
It's a Tekonsha part, and that matters. Tekonsha has been building trailer brake controls and towing wiring for a long time, and the connectors and wire are made to hold up to weather and road grime under the bumper. This isn't a bargain-bin adapter that corrodes green after one season. Good grounds and clean connections are what keep trailer lights from flickering, and that's exactly where cheap harnesses fail.
Who's it for? Anyone moving from a light-duty setup to real towing. New camper owners. Folks who bought a trailer with a 7-way plug and found their truck only has a 4-flat. Guys upgrading a hitch who want to do the wiring right while they're back there.
One honest note. Confirm what your trailer actually needs before you order. A 6-way and a 7-way don't share the same pin count, and your trailer's plug has to match the one on your vehicle. If you're not sure whether you need the 6-way or the full 7-way, tell us what you're towing and we'll point you the right way. Don't guess on this one. Matching the connector to the trailer saves you a wasted trip up the driveway.
Key Features
- Converts an existing 4-flat connector to a 6-way or 7-way trailer plug
- Replaces the OEM tow-vehicle wiring harness rather than splicing into it
- Adds the extra circuits a 6-way or 7-way carries for electric brakes, 12-volt charge, and reverse lights
- Tekonsha towing-grade wire and connector, built to survive under-bumper weather and road grime
- Sorts out the tow-side wiring so your trailer's plug finally matches
- Genuine Tekonsha part, manufacturer number 118283
Why Buy from NVN Marine
- Authorized Tekonsha reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Replacement For OEM Wiring Harness/ 4 Flat to 6 or 7-Way |
|---|---|
| Brand | Tekonsha |
| Manufacturer Part Number | 118283 |
| UPC | 016118134582 |
| Connector Configuration | 4-Flat input to 6-Way or 7-Way output |
| Product Type | Tow harness wiring package |
| Function | OEM wiring harness replacement |
| Application | Trailer towing connector upgrade |
Frequently asked questions
How do I go from a 4-flat to a 7-way connector?
This package is how. It replaces your OEM tow-vehicle harness and gives you a 6-way or 7-way plug off the existing 4-flat wiring, so you're not splicing adapters together under the bumper.
What's the difference between a 4-pin and a 7-pin trailer connector?
A 4-flat carries the basics: running lights, brake lights, and turn signals. A 7-way adds pins for electric trailer brakes, a 12-volt charge line, and reverse lights. If your trailer needs any of those, four pins won't do it.
Should I get the 6-way or the 7-way?
It comes down to your trailer's plug. A 6-way and a 7-way aren't the same pin count, so match the connector to what's on your trailer. If you're unsure, tell us what you're towing and we'll help you pick.
Will this handle my trailer's electric brakes?
A 7-way connector carries the circuit for electric trailer brakes. You'll still need a brake controller in the cab to actually run them, but this gets the brake circuit out to the connector where your trailer plugs in.
Is this a genuine Tekonsha part?
Yes. It's Tekonsha part number 118283, not a generic knock-off. Tekonsha builds trailer brake controls and towing wiring, and the connectors and wire are made to hold up under the bumper.
Does it replace my factory wiring?
It replaces the OEM tow-harness section so you get a clean 6-way or 7-way plug, instead of cutting into your factory harness and hoping the splices last.
