Is The TowSmart 14 Gauge, 4 Conductor Wire 100% Copper Wire?

Updated 04/09/2026 | Published 04/05/2026

Question:

Before I purchase this trailer wiring I wish to be assured that is 100 cooper. Thank You.

asked by: Randy T

Expert Reply:

Hey Randy, good question. Yes, the TowSmart # TS85SR is 100% copper wire, not copper-clad aluminum.

That’s a big deal for trailer wiring because copper carries current better, holds up to vibration, and resists corrosion a lot better over time. You’ll get more consistent lighting and less chance of voltage drop, especially on longer runs. It’s also a 14-gauge, 4-conductor setup, so it’s right in line with what most standard trailer light circuits need.

So you’re good there, it’s a solid, reliable option and not one of the cheaper CCA wires that can cause issues down the road.

What kind of trailer will you be using it on?

expert reply by: Jesse M