Frogman Posted September 23 Report Share Posted September 23 Hi Everyone, I have a question on what gauge wire to use for the rear tail lights. I need to make a wire hardness or two and need to know what gauge wire to use. It looks like it could be 18ga wire. The outside diameter of the wire that is on the truck is 0.100" or a little less then 1/8". I will be using a marine grade wire. From the info that I have found,16ga wire outside diameter is 0.125". I want to order the correct wire. That is the main reason for the question. All input is welcomed Quote Link to comment Share on other sites More sharing options...
Steve from SoCal Posted September 23 Report Share Posted September 23 I don't know what truck or type of lights you have but, on my 2005 Peterbilt the rear wire harness the wire is 16. I think it is more of an isue of voltage drop rather than ampmacity. Quote 2005 Peterbilt 387-112 Baby Cat 9 speed U-shift 1996/2016 remod Teton Royal Atlanta 1996 Kentucky 48 single drop stacker garage project Pulls like a train, sounds like a plane....faster than a Cheetah sniffin cocaine. Link to comment Share on other sites More sharing options...
Frogman Posted September 23 Author Report Share Posted September 23 5 hours ago, Steve from SoCal said: I don't know what truck or type of lights you have but, on my 2005 Peterbilt the rear wire harness the wire is 16. I think it is more of an isue of voltage drop rather than ampmacity. The truck is a 2012 Volvo 610. The rear tail lights will be LED lights. Quote Link to comment Share on other sites More sharing options...
Deezl Smoke Posted September 24 Report Share Posted September 24 1 hour ago, Frogman said: The truck is a 2012 Volvo 610. The rear tail lights will be LED lights. Then good quality 16ga is plenty heavy. If you can find real copper rather than copper coated, it is worth the extra money IMO. Heat shrink the connections if you can. Quote I'm a work'n on it. Link to comment Share on other sites More sharing options...
Frogman Posted September 24 Author Report Share Posted September 24 11 hours ago, Deezl Smoke said: Then good quality 16ga is plenty heavy. If you can find real copper rather than copper coated, it is worth the extra money IMO. Heat shrink the connections if you can. The plan is to use Ancor Marine grade wire. Thank you everyone for the help. Quote Link to comment Share on other sites More sharing options...
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