3297-038 IS LISTED AS 2 DIFFERENT PART NUMBERS IN THE INYO 2008 POOL PARTS CATALOG FOR THE WATER TECH BLUE DIAMOND AND BLUE PEARL ROBOTIC CLEANERS. THE 3297-038 IS A SIDE PLATE FOR THE BLUE PEARL, NOT THE PULLEY ASSEMBLY! THE PART NUMBER FOR THE PULLEY ASSEMBLY IS 3297-100.