Do I need to order the right side separately?

Yes. This is a left-side unit only. Order the matching right-side headlight if you need both sides replaced.

What hardware comes with this headlight?

The assembly arrives as a complete plug-and-play unit. Check your vehicle's existing mounting bolts before install — you may reuse them if in good condition.

Will this require any prep or painting before installation?

The headlight is ready to install as-is. No prep or painting needed — it matches factory finish and simply bolts into the existing mounting points.