[Gaddiszx14]

Where can pigtail plugs for headlights be bought separate instead of the whole dang harness ,I have a melted on on right side,the pic below is an example

 

[Hammerhead]

Unless they're semi-universal automotive parts you're stuck with buying a used harness. I just happen to have one you can have all or part of for cheap.

Or you could search for new sockets by referencing the bulb types.