Trailer-Side 4 Pin Replacement Wire

The 4-pin trailer connector is designed to match industry-standard 4-way flat sockets, providing a reliable connection for your trailer. This wiring harness includes a male trailer plug, ideal for replacing worn-out wires and ensuring seamless functionality.

Heavy Duty Trailer Light Plug

Upgrade your trailer with the CSG Connective Solutions Group Trailer End Connector 4 Wire, eliminating the need for electrical tape and exposed wires. This kit includes 18AWG standard color-coded wires for accurate connections to your taillights, brake lights, and turn signals.

Durable & Long-Lasting

The CSG wireless is made with high-precision oxygen-free copper, featuring 41 strands of 0.14 copper wire per circuit for lower resistance and higher conductivity. The 18AWG 4-pin wiring harness is insulated with high-quality PVC, providing durability and excellent resistance to chemicals and oxidation. Rated for 300V and temperatures from -22°F to 221°F.

Wide Application

This trailer wiring harness is compatible with trailers under and over 80” wide, including marine boat trailers, horse trailers, ATV trailers, and other cargo utility trailer hitches. Ensure your tow/haul vehicle has a 4-way plug for optimal performance.

Custom Configurations

We specialize in custom wire harness configurations to fit your needs. Reach out to us for more details. 

Features

• 4 pin Trailer Wiring Harness Kit with Total harness length of (17')
• This type of Harness is also called a wishbone style Harness.
• The connector end is one-piece mounded rubber, will not corrode, or pull apart.
• The first 48” of wire is sheathed inside a protective coating
• This kit is perfect for wiring trailers measuring under 15’ total length ( from hitch to rear bumper).
• There are (5) 18 AWG Color Coded Wires included in this harness, following the standard color system:
• (1) White wire: Ground (Negative) 42” length.
• (2) Brown wires: Taillights.
• (1)  Yellow wire: Driver Side Stop/Turn Lights.
• (1) Green wire: Passenger Side Stop/Turn Lights.
• This Trailer Wire Harness is designed to split at the trailer tongue and run down each side of the trailer.
• The 42" white ground wire is enough length to reach the frame of your trailer, while the other 4 wires will reach to the rear of any trailer under 15’
• 4-Way Flat Trailer Harness Kit Complies with SAE J1128 standards for a low voltage primary cable.
• This Trailer wire kit is suitable for marine boat trailers, horse trailer, ATV trailers, and other cargo utility trailer hitches (tow/haul vehicle must have 4-way plug).
• Not compatible with motorcycle trailer wiring.
• Not compatible for trailers with power braking systems

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