CURT Plug-and-Play Trailer Wiring

Vehicle-specific harnesses that plug into your factory wiring — no cutting, no splicing, no guesswork.

Use the selector for your year, make, and model. Not sure? Call us — we’ll help you match it.

Trailer lights without the stress — the right CURT harness, matched to your vehicle, with real people if you need a hand.

Why plug-and-play is the easy path

A CURT custom-fit harness plugs into your vehicle’s factory wiring — usually in the rear cargo area — and gives you a standard trailer plug (most often a 4-flat). Running lights, turns, and brakes on the trailer follow the vehicle. No cutting. No splicing. No guessing which wire is which.

That’s Safe & Easy: the correct part, a clean install, and help when you want it.

How it works

Your vehicle already has circuits for stop, turn, and tail lamps. The CURT harness connects through the factory connector — not random splices. An integrated module converts those signals for a standard trailer plug so the trailer lights follow what the vehicle is doing.

On many vehicles the connection is behind an interior panel in the rear cargo area. The harness then ends in a 4-pole flat (or the plug style listed on the product) where you connect the trailer. Typical install is often about 30–60 minutes; some applications take longer.

Plug-and-play vs splice-in — which do you need?

This category is CURT plug-and-play (custom) wiring. These harnesses are built for specific vehicles. They plug into the factory wiring or a factory tow socket — no cutting or splicing the vehicle’s wires — and give you a standard trailer plug (often a 4-flat).

Splice-in converters are different. They’re used when CURT doesn’t offer a custom harness for that vehicle. You join into the taillight circuits and the converter adapts the signals for the trailer. That works, but it’s a different install and not what these kits are for.

If the selector leaves you unsure, call us. We’re a family-owned shop — we help people get the right CURT harness every day.