Extension Cord Repair
Simple steps for replacing an extension cord plug
Follow these simple steps to replace a socket or plug on an extension cord. Your cord will be safe and you'll avoid the high cost of a new one.
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Replace an extension cord plug
The price of heavy-duty extension cords has jumped in recent years because of rising copper prices, so rebuilding old, damaged ones with new plugs or receptacle ends ($5) is a smart move.
Cut off the old plug, then cut back the insulation jacket with a sharp razor knife (Photo 1). Don’t push the blade in—just score the rubber jacket gently until you can tear the rubber off, so you don’t accidentally cut into one of the wires.
Strip the wires (look for a stripping gauge on the plug or in the instructions), then separate the wires and screw them into place. This step can be fussy, especially with stiff 12-gauge wire, but resist the temptation to cut the insulation jacket back—the more of the jacket you can leave inside the plug, the less likely it is to tear or pull out of the plug clamp when the cord is yanked out of an outlet.
Close the plug and screw it together tightly so the cord is locked in. Our replacement plug had a reversible gasket with a curved side for heavy cords. Other types use screws to hold the cord in place.
Required Tools for this extension cord replacement ends project
Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.
Required Materials for this extension cord replacement end project
Avoid last-minute shopping trips by having all your materials ready ahead of time. Here’s a list.