Do I need to prime and paint this before installing?

Yes — the finish arrives unpainted to let you color-match your cab. Light sanding and a primer coat before topcoat paint will give you the best adhesion and durability. Paint type and primer depend on your existing cab finish.

What fasteners do I need to mount it?

Hardware is not included with the mirror assembly. Check your vehicle's service manual or the factory mirror removal guide for the correct fastener size and torque spec — most Tacoma mirrors use standard bolts at the door pillar mount points.

Will this fit without drilling or modifying my door?

This mirror uses factory mounting points, so no drilling or modification is needed. Bolt it to the existing holes on your door pillar just like the OEM unit came off.