ARIMDOTUL 35FT Trailer Wiring Harness 4-Way Flat 5-Wire Y-Split, 16AWG Jacketed for Left/Right Taillights

This 35-foot wiring harness bundles a 4-way flat male connector, a separate 3-foot ground lead and a dual-branch design to simplify trailer rewires or replacements. Built from 16AWG conductors inside a durable PVC jacket, the kit is made to resist abrasion, oxidation and common chemicals while matching standard 4-way flat sockets. The harness is color-coded for straightforward connections and suits a wide range of trailers where a split left/right taillight feed is needed.

How does the Y-shape 5-wire layout help when rewiring a trailer?

The Y-shaped split separates the taillight feed into dual brown wires so each side receives its own signal, avoiding daisy-chained connections. That makes left/right tail and turn functions more reliable and simplifies troubleshooting if a single side fails.

• Dual brown conductors for independent left and right taillight feeds
• Single 4-way flat plug for easy vehicle connection
• 3-foot ground wire provided for secure chassis grounding

Will this harness fit my trailer and stand up to weather and wear?

The harness uses 16AWG copper conductors with a PVC jacket rated for a wide temperature range and chemical resistance, making it suitable for outdoor trailer environments. It matches standard 4-way flat sockets used on most boat, cargo and ATV trailers but is not intended for motorcycle trailer wiring.

• PVC jacket resists moisture, oil and oxidation
• 16AWG wire offers lower resistance and solid conductivity
• Rated operating temperature range from -22°F to 221°F

How easy is installation and what tools will I need?

Color-coded wires let you identify each circuit quickly so you can splice or plug into existing trailer wiring with minimal fuss. Typical installation requires basic hand tools and common electrical supplies; splice connectors, heat shrink tubing or solder and electrical tape are recommended for durable joints.

• Color-coded leads for brake, turn, tail and ground identification
• Works with standard 4-way flat sockets—no adapter usually required
• Simple hand tools and connectors are sufficient for most installs

What are the key specifications I should know before buying?

Know the total harness length and conductor size to ensure fit and performance: this kit supplies 35 feet from plug to split and uses 16AWG wiring. A separate 3-foot ground lead lets you reach chassis points without jury-rigging, and the flat 4-pin plug is the common industry standard.

• 35-foot main harness length for flexible routing
• 16AWG conductor size for reliable current flow
• 4-way flat male connector and 3-foot ground wire included

Who is this for: The ARIMDOTUL 35FT 4-pin 5-wire harness is made for DIYers, trailer repair shops and boat owners who need a durable, long-reach rewiring solution that isolates left and right taillight circuits. Choose this kit if you want a straightforward replacement for common trailers, cargo carriers, ATVs and many RV applications where a 4-way flat connection and independent taillight feeds are required.