This Peterson pulley flange is machined from billet aluminum and hard-coat anodized, designed to press into compatible pulleys and act as a belt guide. It fits 1" and 1 1/4" wide pulleys, is sold individually, and requires re-drilling of the access hole after installation. The flange is specified to fit pulley part number 06-1344 for guided belt alignment on Peterson pulley assemblies.
Peterson Fluid Systems Flange Pump Pulley - Single 44T