Bed cover hinges melting?

The ends of the hinge-seals or whatever these are called on my factory tonneau are degrading/melting.

Any idea what it takes to repair or replace these?

2016 doublecab shortbed.

 

full disclosure - I don't. But, maybe looking at them from the bottom side will shed some light.
I have the same tonneau. Aerospace 303 has kept mine in good shape. Also a 2016.

 

I'd say that hot arizona summers and that seam gets used a lot. But mainly the heat and direct sunlight will do that kind of damage.

 

These get doused in 303 monthly.

AZ Sunlight is a monster.

For what it's worth, I was more hoping to find a part number than a guide - the things got a bajillion screws and if I remove enough of them it should become clear - but that doesn't do me much good if I can't get reppacement parts.

 

Heat and direct sunlight, yes.

I've probably opened the 2nd seam 50 times in the last 3 years, so 'a lot' is definitely not the case.

 

Maybe gas vapours from a gas can that you store in the bed near the damage??

 

Go to the stealership. I was looking at a piece for mine 2 weeks ago.

 

please keep us posted, we're all gonna have that problem at some point.

 

Nope. This happened to ALL of them at about the same time.

 

Sun tan lotion or skeeter repellent
https://www.youtube.com/watch?v=P5DebAWMdEA

 

This might help, but probably not much. It really doesn't look like those rubber seals are available as a separate part?

https://parts.conicellitoyotaofcons...--3-5l-v6-gas/body--exterior-trim-pick-up-box

 

I have experienced the same issue except that mine have further degraded to the point of cracking the entire length of the seal. Mine is also in Arizona and also received regular 303 treatments. The dealership just quoted $1700 to fix. The cover was a $650 option at time of purchase (2016). I am interested in learning if anyone has found a fix other than replacing with an aftermarket cover.

 

The dealer said the seals are available as separate parts...I didn't order them yet. Life got in the way.

 

Please post the part number(s) if you get them.

 

Try some inner tube repair patch and the flex seal!

 

Don't know if anyone has come across this thread yet, but it has the part numbers and instructions on how to install.

https://www.tacomaworld.com/threads/oem-tonneau-cover-weather-strip-dissolves.692464/

 

Eek! That looks gnarly!

 

WTF????????????? Something had to be spilled on that. Nasty.

 

That's sun and heat damage in Arizona.

 

One of mine is heading in that direction, although currently no where near as bad as the one in the picture. Southeast Louisiana sun, heat, rain, humidity does a number on most anything..