Will this grille work with my current front bumper?

Yes — it mounts directly to factory grille opening locations. No bumper modifications needed. Confirm the bracket clearance during fitment before final fastening.

Does this need paint prep or sealing before I install it?

The black finish ships ready to bolt on. If you're concerned about gaps or edges, a quick inspection before install lets you seal any raw edges with touch-up paint if desired.

What fasteners or brackets come with this?

Hardware is not confirmed in the listing. Test-fit first to confirm what fastening method works with your truck's existing grille frame, then source hardware accordingly.