Replaces GM 12559885
F-Body Power Steering Pulley
Billet 6061 T6 aluminum.
Does not fit LS1 Corvettes
If you have Corvette GM 12559890
then you need to purchase LS1PS1
listed on the website
This is not an underdrive pulley.
Not recommended for re-installations.
Use proper installation tools. Pulley has a press-on fit.
Same as stock size.