Lower Unit CR SE428 | Sterndrive Engineering 90-428 SE428 Lower Unit CR | SEI 90-428 SE428 C.R. (Replaces some Yamaha V6 2 & 4 Stroke) | SEI 90-428 Replaces most 200HP/225HP and some 250HP Yamaha 76 Degree V6 Counter Rotation Motors with a 1.81 Ratio Replaces most 200HP/225HP Yamaha V6 4-Stroke Counter Rotation Motors with a 2.00 Ratio For Counter Rotation only, do not use for Standard Rotation YEAR MODEL NUMBER DRIVE SHAFT GEAR RATIO PART NUMBER 2005 LZ250TXRD 25 1.81:1 90-428-A25 2004 LZ250TXRC 25 1.81:1 90-428-A25 2003 LX225TXRB 25 1.81:1 90-428-A25 2003 LX250TXRB 25 1.81:1 90-428-A25 2003 LZ250TXRB 25 1.81:1 90-428-A25 2002 LX225TXRA 25 1.81:1 90-428-A25 2002 LX250TXRA 25 1.81:1 90-428-A25 2001 LX225TXRZ 25 1.81:1 90-428-A25 2001 LX250TXRZ 25 1.81:1 90-428-A25 2000 LX225TXRY 25 1.81:1 90-428-A25 2000 LX250TXRY 25 1.81:1 90-428-A25 1999 L225TXRX 25 1.81:1 90-428-A25 1999 L250TXRX 25 1.81:1 90-428-A25 1998 L225TXRW 25 1.81:1 90-428-A25 1998 L250TXRW 25 1.81:1 90-428-A25 1997 L225TXRV 25 1.81:1 90-428-A25 1997 L250TXRV 25 1.81:1 90-428-A25 1996 L225TXRU 25 1.81:1 90-428-A25 1996 L250TXRU 25 1.81:1 90-428-A25 1995 L225TXRT 25 1.81:1 90-428-A25 1995 L250TXRT 25 1.81:1 90-428-A25 1994 L225TXRS 25 1.81:1 90-428-A25 1994 L250TXRS 25 1.81:1 90-428-A25 1993 L250TXRR 25 1.81:1 90-428-A25 1992 L250TXRQ 25 1.81:1 90-428-A25 1991 L250TXRP 25 1.81:1 90-428-A25 1990 L250ETXD 25 1.81:1 90-428-A25