Kuryakyn 7672 Trailer Wiring Harness for 1997–2013 Harley Touring ModelsThe Kuryakyn 7672 Trailer Wiring Harness is designed for 1997–2013 Harley-Davidson Touring motorcycles and provides a safe plug-and-play trailer wiring solution that protects factory circuits from overload.Look, towing a trailer on a Harley ain't as simple as people think. You get everything hooked up, walk around the trailer checking lights — left turn works, brake lights good, looks fine. Then you're somewhere in the middle of nowhere, maybe 40 miles out, and suddenly your fuses are done. I had a guy come into the shop once, swore up and down his wiring was solid. He'd tapped the trailer straight into his stock turn signal wire. That circuit wasn't built for that. Never was.These older Touring bikes — '97 through '13 — their factory wiring does exactly one thing: runs the bike's own lights. That's it. Once you start pulling trailer current through those same circuits, sooner or later something gives. The Kuryakyn 7672 Trailer Wiring Harness is built to solve that problem properly instead of just masking it.Why Choose the Kuryakyn 7672 Trailer Wiring HarnessHere's the actual issue. Harley-Davidson didn't design these Touring models for trailer towing from the factory. The stock lighting circuits were only sized for the motorcycle itself. Add trailer lights into the mix and you can overload the system fast — blown fuses, flickering brake lights, weak turn signals, all the stuff riders end up fighting on long trips.The Kuryakyn 7672 Trailer Wiring Harness fixes this using a relay-powered design. Your bike's existing lighting circuits only trigger the relay, while the actual trailer lighting power comes directly from the battery. That means cleaner power delivery, safer wiring, and far less strain on the factory electrical system.If you're looking for a reliable Harley trailer wiring harness, this is one of the cleanest plug-and-play setups available for older Touring bikes.What's Included & How It WorksInside the box, the Kuryakyn 7672 Trailer Wiring Harness includes a complete 5-wire trailer output system:Running lightsBrake lightsLeft turn signalRight turn signalGroundEverything needed for a standard motorcycle trailer setup is already included.There's also a bonus fused 12V accessory wire. This separate power wire works great for trailer compartment lights, keyless entry systems, or other small trailer accessories that need independent power.Most trailers use a standard 4-flat connector, and Kuryakyn includes a 5-to-4 wire converter in the kit. No extra adapters needed.Installation is true plug-and-play. The connectors are designed to match factory Harley-Davidson wiring plugs exactly. No cutting, no splicing, and no complicated wiring work. Most riders can install the Kuryakyn 7672 Trailer Wiring Harness in about 30–45 minutes using basic hand tools.Kuryakyn 7672 Trailer Wiring Harness FeaturesRelay-based system protects factory Harley wiringDraws trailer power directly from the batteryPrevents overloaded stock lighting circuitsFull 5-wire trailer output includedBonus fused 12V accessory wire5-to-4 flat connector converter includedPlug-and-play Harley-Davidson connectorsDesigned for 1997–2013 Harley Touring motorcyclesIdeal Harley Touring trailer wiring solution for towing setupsKuryakyn 7672 Trailer Wiring Harness FitmentThe Kuryakyn 7672 Trailer Wiring Harness fits the following Harley-Davidson models:Electra Glide – 1997–2013 (all variants)Road King – 1997–2013 (except 2013 FLHRSE)Road Glide – 1998–2013 (except 2009 FLTRSE, 2010–2013 FLTRX, 2012–2013 FLTRXSE)Street Glide – 2006–2009Trike – 2009–2013Softail – 1996–2010 (except 2008–2010 FXCW/C and 2010 FLSTSE)Dyna – 1997–2011 (except 2010–2011 FXDWG)Not sure if your bike is compatible? Contact us before ordering and we'll help confirm fitment.Frequently Asked Questions About Kuryakyn 7672 Trailer Wiring HarnessDoes the Kuryakyn 7672 Trailer Wiring Harness work with any trailer?Yes. The Kuryakyn 7672 Trailer Wiring Harness works with standard motorcycle trailers using either 5-wire or 4-flat trailer connectors.Is the Kuryakyn 7672 Trailer Wiring Harness easy to install?Absolutely. The harness uses factory-style Harley-Davidson connectors, so no cutting or splicing is required during installation.Will the Kuryakyn 7672 Trailer Wiring Harness interfere with accessory lights?No. The relay system keeps the trailer wiring circuit isolated from your bike's other lighting accessories.What is the fused 12V accessory wire for?The additional fused 12V wire can power trailer compartment lights, keyless entry systems, or other small trailer accessories independently from the main trailer lights.Do I need an adapter for a 4-flat trailer connector?No. The included 5-to-4 converter already handles standard flat trailer plugs.Part Number: 7672Brand: KuryakynUPC: 191209013769Fits: 1997–2013 Harley-Davidson Touring Models