Features:
- Forged from high-silicone aluminum alloy for maximum strength and dependability.
- High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speeds.
Fit the models:
| YAMAHA |
WR 250 F |
2003 |
| YAMAHA |
WR 250 F |
2004 |
| YAMAHA |
WR 250 F |
2006 |
| YAMAHA |
WR 250 F |
2005 |
| YAMAHA |
WR 250 F |
2007 |
| YAMAHA |
WR 250 F |
2010 |
| YAMAHA |
WR 250 F |
2009 |
| YAMAHA |
WR 250 F |
2008 |
| YAMAHA |
WR 250 F |
2011 |
| YAMAHA |
WR 250 F |
2012 |
| YAMAHA |
WR 250 F |
2013 |
| YAMAHA |
WR 250 R |
2010 |
| YAMAHA |
WR 250 R |
2009 |
| YAMAHA |
WR 250 R |
2008 |
| YAMAHA |
WR 250 R |
2011 |
| YAMAHA |
WR 250 R |
2013 |
| YAMAHA |
WR 250 R |
2012 |
| YAMAHA |
WR 250 X |
2008 |
| YAMAHA |
WR 250 X |
2010 |
| YAMAHA |
WR 250 X |
2009 |
| YAMAHA |
WR 250 X |
2011 |
| YAMAHA |
WR 250 X |
2013 |
| YAMAHA |
WR 250 X |
2012 |

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 |
WR |
2003 |
|
250 |
| YAMAHA |
WR |
2004 |
|
250 |
| YAMAHA |
WR |
2005 |
|
250 |
| YAMAHA |
WR |
2006 |
|
250 |
| YAMAHA |
WR |
2007 |
|
250 |
| YAMAHA |
WR |
2008 |
|
250 |
| YAMAHA |
WR |
2008 |
|
250 |
| YAMAHA |
WR |
2008 |
|
250 |
| YAMAHA |
WR |
2009 |
|
250 |
| YAMAHA |
WR |
2009 |
|
250 |
| YAMAHA |
WR |
2009 |
|
250 |
| YAMAHA |
WR |
2010 |
|
250 |
| YAMAHA |
WR |
2010 |
|
250 |
| YAMAHA |
WR |
2010 |
|
250 |
| YAMAHA |
WR |
2008 |
|
250 |
| YAMAHA |
WR |
2008 |
|
250 |
| YAMAHA |
WR |
2009 |
|
250 |
| YAMAHA |
WR |
2010 |
|
250 |
| YAMAHA |
WR |
2009 |
|
250 |
| YAMAHA |
WR |
2010 |
|
250 |
| YAMAHA |
WR |
2003 |
|
250 |
| YAMAHA |
WR |
2004 |
|
250 |
| YAMAHA |
WR |
2006 |
|
250 |
| YAMAHA |
WR |
2007 |
|
250 |
| YAMAHA |
WR |
2011 |
|
250 |
| YAMAHA |
WR |
2011 |
|
250 |
| YAMAHA |
WR |
2011 |
|
250 |
| YAMAHA |
WR |
2011 |
|
250 |
| YAMAHA |
WR |
2005 |
|
250 |
| YAMAHA |
WR |
2008 |
|
250 |
| YAMAHA |
WR |
2009 |
|
250 |
| YAMAHA |
WR |
2010 |
|
250 |
| YAMAHA |
WR |
2011 |
|
250 |
| YAMAHA |
WR |
2011 |
|
250 |
| YAMAHA |
WR |
2012 |
|
250 |
| YAMAHA |
WR |
2012 |
|
250 |
| YAMAHA |
WR |
2012 |
|
250 |
| YAMAHA |
WR |
2012 |
|
250 |
| YAMAHA |
WR |
2012 |
|
250 |
| YAMAHA |
WR |
2013 |
|
250 |
| YAMAHA |
WR |
2013 |
|
250 |
| YAMAHA |
WR |
2013 |
|
250 |
| YAMAHA |
WR |
2013 |
|
250 |
| YAMAHA |
WR |
2013 |
|
250 |