This Peterson pulley flange is machined from billet aluminum and finished with hard-coat anodizing to act as a belt guide when pressed into compatible pulleys. It fits 1" and 1 1/4" wide pulley widths, is sold individually, and requires re-drilling the access hole after installation. The flange is listed to fit pulley part number 06-1340 for guided belt retention on Peterson pulleys.
Peterson Fluid Systems Flange Pump Pulley - Single 40T HTD