LIMICAR 5-Way Trailer Wire 100ft 18 AWG Bonded Spool — Color-Coded SAE J1128, PVC Jacket

LIMICAR 100FT 18 gauge bonded 5-way trailer wire is a full-length spool of color-coded, SAE-rated wiring designed to rewire a trailer’s lighting and electric brake circuits in one tidy run.

This 100-foot wishbone-style harness brings five parallel conductors together—white ground, brown tail, yellow left stop/turn, green right stop/turn, and blue electric brake—so you can rewire cargo, utility, horse, or boat trailers without wrestling separate wires. The PVC jacket resists oil, acid, UV and moisture and the 18 AWG conductors meet SAE J1128 standards for automotive applications, making it suitable for DIY installs and professional rebuilds alike.

How will this spool simplify a full trailer rewiring?

Because the five conductors are bonded in a single wishbone assembly, you run one harness along the frame instead of managing five independent wires. That reduces installation time, prevents tangling, and creates a neater, more durable routing that stays secured to the trailer.

• One continuous 100-foot spool covers most full-length trailers with extra for splices or future repairs.
• Bonded construction keeps wires aligned for easier stapling, zip-tying, or conduit feeding.
• Color-coded conductors match standard trailer wiring to speed connections at plugs and lights.

Is this wire compatible with my trailer’s lights and brake controller?

Yes — the five color-coded conductors correspond to common trailer circuits including electric brakes. The harness works with standard 5-pin flat and round connectors and is intended for 12V vehicle systems; it fits most trucks, SUVs, and tow vehicles that use 5-way connections.

• Blue conductor dedicated to electric brake circuits for connection to a brake controller.
• Brown, yellow, green and white follow universal trailer color conventions for quick hookups.
• Designed for 12V systems and compatible with both 5-way flat and 5-way round plugs.

What are the durability and safety features of this LIMICAR wire?

The 18 AWG stranded conductors are insulated with oil- and acid-resistant PVC and rated to SAE J1128 specifications, providing flexible, automotive-grade performance. The outer jacket resists UV and moisture exposure so it holds up under outdoor, marine, and roadside conditions when routed along trailer frames.

• SAE J1128 rating ensures automotive-grade materials and construction.
• PVC jacket resists UV, moisture, oil and acid for outdoor longevity.
• Flexible 18 AWG stranded wire simplifies bending around brackets and through grommets.

How do I install and make reliable connections with this harness?

Cut the spool to the lengths you need, strip and split the color-coded conductors at connection points, then crimp, solder, or use approved connectors to attach lights, plugs, and brakes. The bonded layout reduces handling while routing and supports common fastening methods like staples, clips, and cable ties.

• Follow color codes: White ground, Brown tail, Yellow left stop/turn, Green right stop/turn, Blue brake.
• Secure harness along the frame every few feet with staples or zip ties to prevent chafing.
• Use dielectric grease and heat-shrink or sealed connectors to protect splices from corrosion.

Who is this for? The LIMICAR 100FT 18 gauge 5-way bonded trailer wire is aimed at DIY mechanics, fleet technicians, and trailer owners who need a complete, neat rewiring solution for cargo, utility, horse, or boat trailers. It’s a practical choice for anyone replacing worn harnesses, upgrading to electric brakes, or building a trailer from the frame up—providing a professional-looking routed harness with materials rated for outdoor and marine conditions. If you need assistance selecting or installing wiring, LIMICAR customer support is available to help.