The Peterson Fluid Systems pulley flange is a billet-aluminum, anodized insert that presses into compatible Peterson pump pulleys and serves as a belt guide to help keep the drive belt aligned. It fits 1" and 1 1/4" wide pulleys and is sold individually. Intended for pulley part 06-0324; installation requires re-drilling the access hole after the flange is installed.
Peterson Fluid Systems Flange Pump Pulley - Single (Fits 06-0324)