[Siennema]

pt206-08179 is supposed to be the newer replacement for pt206-08139, but places that sell both sell the pt206-08139 for more. Whats the difference between the two models?

 

[2018 XLE]

Don't know what they are, but if getting new mats look for ones with clearance for the middle row seat tracks. Lloyds and others make them. I got tired of the seat and mat conflict when moving the seats and went with Lloyds.

 

[Siennema]

I purchased this one since i have an 8 passenger and it looks like the single pieces that cover both second and third rows without blocking the seats from sliding
2015 - 2017 Toyota Sienna OEM NEW black 6 pc carpet floor mat set PT206 08139 20 | eBay

I have a 2015 LE 8 passenger, but according to / accessories for 2015 Toyota Sienna | OEM Parts the SE mat will fit.