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SE421 1.81:1 Ratio / 25" Shaft / 2 Stroke V6 / RH Rotation
on Yamaha V6 2 Stroke 3.1 and 3.2 Liter Engines
with Standard Right Hand Rotation.
1.81:1 Gear Ratio
25 Inch Drive Shaft.
The paint color is Black. You can paint it to match.
See Technical Tab for specific model cross reference.
Use CRTL+F to Search for your Engine Model Number
| Year | Model Number | Shaft | Gear Ratio | SEI part number |
|---|---|---|---|---|
| 2005 | Z250TXRD | 25 | 1.81:1 | 90-421-A25 |
| 2004 | Z250TXRC | 25 | 1.81:1 | 90-421-A25 |
| 2003 | SX225TXRB | 25 | 1.81:1 | 90-421-A25 |
| 2003 | SX250TXRB | 25 | 1.81:1 | 90-421-A25 |
| 2003 | Z250TXRB | 25 | 1.81:1 | 90-421-A25 |
| 2002 | SX225TXRA | 25 | 1.81:1 | 90-421-A25 |
| 2002 | SX250TXRA | 25 | 1.81:1 | 90-421-A25 |
| 2001 | SX225TXRZ | 25 | 1.81:1 | 90-421-A25 |
| 2001 | SX250TXRZ | 25 | 1.81:1 | 90-421-A25 |
| 2000 | SX225TXRY | 25 | 1.81:1 | 90-421-A25 |
| 2000 | SX250TXRY | 25 | 1.81:1 | 90-421-A25 |
| 1999 | S225TXRX | 25 | 1.81:1 | 90-421-A25 |
| 1999 | S250TXRX | 25 | 1.81:1 | 90-421-A25 |
| 1999 | V225TXRX | 25 | 1.81:1 | 90-421-A25 |
| 1998 | S225TXRW | 25 | 1.81:1 | 90-421-A25 |
| 1998 | S250TXRW | 25 | 1.81:1 | 90-421-A25 |
| 1997 | S225TXRV | 25 | 1.81:1 | 90-421-A25 |
| 1997 | S250TXRV | 25 | 1.81:1 | 90-421-A25 |
| 1996 | S225TXRU | 25 | 1.81:1 | 90-421-A25 |
| 1996 | S250TXRU | 25 | 1.81:1 | 90-421-A25 |
| 1995 | 225TXRT | 25 | 1.81:1 | 90-421-A25 |
| 1995 | 250TXRT | 25 | 1.81:1 | 90-421-A25 |
| 1994 | 225TXRS | 25 | 1.81:1 | 90-421-A25 |
| 1994 | 250TXRS | 25 | 1.81:1 | 90-421-A25 |
| 1993 | 250TXRR | 25 | 1.81:1 | 90-421-A25 |
| 1992 | 250TXRQ | 25 | 1.81:1 | 90-421-A25 |
| 1991 | 250TXRP | 25 | 1.81:1 | 90-421-A25 |
| 1990 | 250ETXD | 25 | 1.81:1 | 90-421-A25 |
