Fits:
| YAMAHA YFB 250 TIMBERWOLF 2WD [250] |
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
2001 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
2000 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1999 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1998 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1997 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1996 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1995 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1994 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1993 |
|
| YAMAHA |
YFB 250 TIMBERWOLF 2WD |
250 |
1992 |
|
| YAMAHA YFM 250 BEAR TRACKER 2WD [250] |
| YAMAHA |
YFM 250 BEAR TRACKER 2WD |
250 |
2005 |
|
| YAMAHA |
YFM 250 BEAR TRACKER 2WD |
250 |
2004 |
|
| YAMAHA |
YFM 250 BEAR TRACKER 2WD |
250 |
2003 |
|
| YAMAHA |
YFM 250 BEAR TRACKER 2WD |
250 |
2002 |
|
| YAMAHA |
YFM 250 BEAR TRACKER 2WD |
250 |
2001 |
|
| YAMAHA |
YFM 250 BEAR TRACKER 2WD |
250 |
2000 |
|
| YAMAHA |
YFM 250 BEAR TRACKER 2WD |
250 |
1999 |

Since 1940, Wiseco has manufactured forged pistons of outstanding quality for motorcycles, motocross bikes, snowmobiles, and 4-wheeler's. After almost 70 years in the industry, Wiseco has become synonymous with high-quality products that exceed the customer's requirements.
| Brand |
Model |
Year |
Name |
CC |
| YAMAHA |
YFB |
1992 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1992 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1993 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1993 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1994 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1995 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1996 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1996 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1997 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1997 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1998 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1994 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1994 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1995 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1995 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1996 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1996 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1997 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1997 |
Timberwolf Maine & New Hampshire |
250 |
| YAMAHA |
YFB |
1998 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1999 |
Timberwolf |
250 |
| YAMAHA |
YFB |
2000 |
Timberwolf |
250 |
| YAMAHA |
YFM |
1999 |
Bear Tracker |
250 |
| YAMAHA |
YFM |
2000 |
Bear Tracker |
250 |
| YAMAHA |
YFM |
2001 |
Bear Tracker |
250 |
| YAMAHA |
YFM |
2001 |
Bear Tracker Realtree |
250 |
| YAMAHA |
YFM |
2002 |
Bear Tracker |
250 |
| YAMAHA |
YFM |
2003 |
Bear Tracker |
250 |
| YAMAHA |
YFM |
2004 |
Bear Tracker |
250 |
| YAMAHA |
YFM |
2005 |
Bruin |
250 |
| YAMAHA |
YFM |
2002 |
Bear Tracker Realtree |
250 |
| YAMAHA |
YFB |
1996 |
Timberwolf |
250 |
| YAMAHA |
YFB |
1996 |
Timberwolf Maine & New Hampshire |
250 |