Left side / Right side. Thread adapter from 83-up H-D to Covingtons Custom gas caps. Fits all 83-20 screw style fuel tanks in combination with Covingtons gas caps only. Multi function, since it will make a clean transition between gas cap and gas tank, but also help protect your paint work from fuel or other damage.
Fits: > 83-20 H-D with Covingtons narrow threaded gas caps