UCF20 Celsiors have their own hydrofan pulley, so we set out to make those as well! This pulley is actually specific to all 1995-2000 Toyota Celsior UCF20 and UCF21 engines (both the 95-97 non-VVTi and the 98-00 VVTi), which have a different bolt pattern on their drive pulley hub from other hydrofan setups.
If you have an imported Celsior, or are swapping an engine from one, you'll need this specific pulley to finish out the kit, if you plan on keeping the hydrofan setup working (which we definitely recommend if you have the choice)