9021026002 – Sprocket washer seal
NOK AS568-151D – oil seal o-ring
It is hard to find the o-ring, but any FKM/Fluro/Viton 80x85x0.25 ring will work fine
a0259976648 can be used if stretched
Square oil control ring/gasket is not available anywhere and is only sold with the sprocket from Toyota.
Other VVTi part numbers:
90099-14137 – vvti solenoid oring