Aufind 35FT 4-Pin 5-Wire Trailer Wiring Harness – Color-Coded 18 AWG

Effortless Trailer Wiring with Aufind

Meet the Aufind 35FT 4-Pin 5-Wire Trailer Wiring Harness, a color-coded kit designed to simplify your trailer electrical upgrades. Built for durability, the 18 AWG copper conductors are insulated with a thick PVC jacket and protected by a black braided nylon mesh jacket. This construction helps resist fraying and harsh weather while delivering reliable signal transmission across conditions.

The kit’s 4-pin 5-wire design keeps wiring tidy and reduces the need for extra splices, with color-coded leads guiding you through connections to taillights, brake lights, and turn signals. The combination of sturdy conductors and thoughtful layout aims to make installation less guesswork and more straightforward.

What’s included and how it works

• 18 AWG pure copper wires with a thick PVC jacket and a black braided nylon outer layer for longevity and weather resistance.
• 4-pin 5-wire system with color-coded cables to simplify identifying power, ground, left right turn signals, and brake taillight circuits.
• 35ft main lead plus 2.5ft ground wire provide flexible installation options for longer trailers or awkward routes.
• Includes practical hardware: 1 Y-Harness Connector, 6 trailer frame wire clips, 6 solder-seal connectors, and 6 plastic wire connectors for tidy, secure splices.

Versatile applications

• Ideal for marine boat trailers, ATV trailers, and other cargo or utility trailers that require a 4-way plug.
• Color-coded wires and a ready-to-use Y-Harness can help you rewire or upgrade existing setups without extensive rewiring.

Tips for installation and use

Plan your routing to keep power and ground conductors separate from high-heat or moving parts. Confirm all connections are snug and protected from moisture. When in doubt, consult your trailer’s wiring diagram and these color guides to match left, right, brake, and tail signals.

Why this kit matters

With durable conductors and a clearly organized harness, you can approach trailer wiring tasks with confidence. The kit is designed to offer possibilities rather than guarantees, so you can assess benefits like easier splicing, clearer labeling, and cleaner, weather-ready connections based on your setup.