Automotive Soldering

Avoid common mistakes soldering automotive wiring harnesses, like overheating joints that stiffen copper.

Set your soldering iron to 600–650°F (315–340°C) for automotive wiring harness work. Learn the right temp, solder type, and iron wattage to avoid damage.

Find the best soldering kit for automotive work by matching your workspace, joints, and frequency. Compare 10 top picks for splice repairs and wiring.

The best soldering tip for automotive wiring is an 8–10 mm chisel tip on a 60–80W iron, heating thick wire and terminals in seconds.

For most automotive wiring, a 60-watt soldering iron with temperature control is ideal. See what wattage to use for 14–18 AWG wire, sensor wires, and…