This pinion gear is compatible with outboard motor models requiring part number 69W-45551-00-00.The component features 13 teeth and is designed for the lower casing drive assembly.It fits various 50HP and 60HP engines including F50TLR, F50TLRD, F50LB, F50LA, F60TLR, F60TJR, F60TLRB, F60LB, F60LA, F60TLRA, F60TJRB, F60TLRD, F60TLRC, F60TJRD, and F60TJRC.Compatibility extends to specific model years ranging from 2002 through 2006 and later production dates.This replacement part serves to restore function in the drive system of compatible boat engines.