Ok guys I have a quick question: If I install a stock diameter UR crank pulley, do I have to change any belts (even though it's stock diameter) ? And assuming I don't necessarily have to, would you change it nonetheless ?

 

Yes I searched, but i just found people fighting about potential damages

 

i plan on installing my pulleys when i get my belt changed, that way it's all done at once. I don't think it's completely necessary, but depending on mileage, etc it's probably a good idea just to change the belt as well.

(btw, Obsidian Black is a very nice choice, just be extra gentle w/ it because M-B paint is very soft and just about everything scratches it)

 

You still need to change the Power Steering Belt on the Ultra Sc stock diameter pulley, and that is part # 040425.

 

Even though you only have to change one belt, might as well replace the other one since you're there.

 

All right, since I have to change the p/s belt anyway, I'll probably just change them all.

I might as well do the timing belt and water pump while I'm there.... gonna be tough on the wallet !