Do I need any adhesive or special tools to install this?

Installation method not specified in product data. Test-fit the lens against your existing mirror housing first to determine whether you'll use adhesive, mechanical fasteners, or factory clips. Most OE-style mirror replacements use one of these approaches depending on your mirror design.

Does this come with mounting hardware?

This listing includes the mirror glass lens only. You'll need to confirm your mirror's mounting method before ordering — some use factory clips, others use adhesive or small fasteners.

Can I use this on the left side instead?

This lens is cut and angled for right-side mounting. Using it on the left side will result in incorrect sight lines and improper fit. Order the correct side for your vehicle.