I need to extend the wires on my sending unit, what size wire should I use?

Here at Glowshift just about all of our Temperature and Pressure harnesses can be extended with 18-20 Gauge automotive rated wiring. The only gauge harness that can not be extended is the special grade Exhaust Temperature sensor harness. We also offer a line of pre-made extended harness on our website for just about all our gauges. Check out our wire harness section here!