This pinion gear, part number 697-45551 (also referenced as 697-45551-00 and 6974555100), features 13 teeth and is designed as a replacement accessory for boat motors.It is compatible with 48HP and 55HP engine models.This component fits specific lower drive and lower casing drive assemblies including: 1989 CV55ELF, 1990 CV55ELD, 1991 C55ELRP, 1992 C55ELRQ, 1993 C55ELRR, 1993 C55TLRR, 1994 C55ELRS, 1994 C55TLRS, 1995 C55ELRT, 1995 C55ERT, 1995 C55TLRT, 1995 C55TRT, 1995 E48MLHT, 1996 E48MLHU, 1997 E48MLHV, 1998 E48MLHW, 1999 E48MLHX, and 2000 E48MLHY.The item serves to restore function in the specified applications.