I have a 2013 RX350 and the driver's side mirror casing has a crack (see photos). The only part that is broken is the front mirror casing (housing). The glass, back portion of the casing, hardware components and blinker light are untouched. Is there any way that I can buy just the part I need, and not an entire mirror assy? Does anyone know of one for sale? Any recommendations or advice would be appreciated.

 

You can search here to see if separate parts are available http://www.lexuspartsnow.com/lexus-rx350-parts.html

However, I bet you will need a complete mirror assembly. Check eBay or http://www.rancholexusrecycling.com/

 

I had the same crack on my mirror when I bought my RX . I have a body shop and we glued it back together and finished off the body work . Then just painted the outer edge .You would never know it was cracked . I don't think a dealership body shop would want to mess with it . But maybe an small independent shop would help you out .It is amazing what you can do with plastics and adhesives these days . It can be repaired it just takes the right tech to do it . Good luck