TRD RAD CAPS ARE
PTR04-00000-01 Relief pressure 127kPa(1.3kgf/cm2)
PTR04-00000-02 Relief pressure 147kPa(1.5kgf/cm2)
TRD THERMOSTAT IS
PTR26-35070 for 11/93 and up
this website rocks if you haven't seen it
MR2(SW20)
your local toyota can pretty much order anything from trd and they get it shipped from japan which could take a little, but the above numbers are good us part numbers.