Hi, yes, this part is for a 2010 Acura TL 4-door. This specific part is the door shell for the right rear (passenger side) door. It is not the complete door panel, which is a different part number. You can see both parts listed at this link: https://www.carid.com/2010-acura-tl-oem-exterior-body-parts/acura-oe-rear-door-door-and-components-2877035863.html