Offroad-Express

Could anyone tell me if it is possible to buy the plastic "wheel" from the worm and wheel drive on the electric window motor on the nissan patrol?

I tried to get one from our local Nissan dealer a few months back at that time they had nothing in stock it would be 3 weeks ex Japan They tried to charge me 68.00 includeing frieght ,so i said forget it and bought a complete motor assembly with the coggs etc of T/M for $35.00 ,i would suggest that is the better way to go ..Steve