Will this glass fit into my existing mirror housing?

Yes. This is designed to drop into the OE mirror assembly without modification. The mounting tabs and curvature match the factory housing.

Do I need any adhesive or clips to install this?

The glass mounts via factory connection points in the mirror housing. Verify your mirror housing is intact before installation — a damaged housing may require the entire mirror assembly replacement.

How do I know if I need the right side or left side glass?

Right side is the passenger-side mirror. Driver side is left. If you're unsure which mirror you're replacing, check which side has the damage or confirm your vehicle's seating position.