i guess i just assumed EVERYONE ran toyota t-stat o-rings on these things..
lol..
ive beem running this type of o-ring for soo long, that i forget ive gotten them in the car till i pull the t-stat..
ive also re-used them many, many, times, without issues..
Here's a shot of the thermostat with the toyota seal installed - Thanks R.O.R.
i guess i just assumed EVERYONE ran toyota t-stat o-rings on these things..
lol..
ive beem running this type of o-ring for soo long, that i forget ive gotten them in the car till i pull the t-stat..
ive also re-used them many, many, times, without issues..
I don't think it's tight enough in the housing to stay put if it's upside down but it is centered much better and it will definitely seal!

Your t-stat has the wrong country stamped on it.
Your t-stat has the wrong country stamped on it. 
has it been boil tested?
i test every thermostat i install in a car, new or used..
more often than not, i have better luck with used OEM t-stats, than brand new McAutoparts t-stats..
No, I didn't test it but I did drill a tiny bleed hole in it which I pointed upwards once the engine is in.
No, I didn't test it but I did drill a tiny bleed hole in it which I pointed upwards once the engine is in.
well, thats a step in the right direction..