Fit was tighter than I anticipated... you have to twist the bulb in part of the way, and then finagle the harness into position and lock it in. Then you can finish twisting the bulb into place in the headlamp. Dust covers went back on with no issues. So while the fit wasn't as perfect as I thought, these particular bulbs fit into the factory headlamps with no issues. Next pictures and impressions will come when I can drive it at night. So far, so good.