Features:
- Designed for all-purpose 2-stroke riding
- Durability, longevity and increased horsepower
- Dedicated forging design for strength-to-weight optimization
- Extra lightening operations for enhanced throttle response
- Engineered, forged, and machined in the USA
- Piston is made in the USA
- Ceramic composite cylinders will require sleeving or replating.
- Stroke Length:68,00 mm
- Piston Diameter:68,46 mm
- Displacement:246.8 cc
- Piston Material:4032 Aluminum Alloy
Fit the models:
| YAMAHA |
WR 250 |
1992 |
| YAMAHA |
WR 250 |
1993 |
| YAMAHA |
WR 250 |
1997 |
| YAMAHA |
WR 250 |
1996 |
| YAMAHA |
WR 250 |
1995 |
| YAMAHA |
WR 250 |
1994 |
| YAMAHA |
WR 250 Z |
1992 |
| YAMAHA |
WR 250 Z |
1993 |
| YAMAHA |
WR 250 Z |
1997 |
| YAMAHA |
WR 250 Z |
1996 |
| YAMAHA |
WR 250 Z |
1995 |
| YAMAHA |
WR 250 Z |
1994 |
| YAMAHA |
WR 250 Z |
1998 |
| YAMAHA |
YZ 250 |
1992 |
| YAMAHA |
YZ 250 |
1993 |
| YAMAHA |
YZ 250 |
1994 |
| YAMAHA |
YZ 250 |
1995 |
| YAMAHA |
YZ 250 |
1996 |
| YAMAHA |
YZ 250 |
1997 |
| YAMAHA |
YZ 250 |
1998 |

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 |
1992 |
|
250 |
| YAMAHA |
WR |
1993 |
|
250 |
| YAMAHA |
WR |
1994 |
|
250 |
| YAMAHA |
WR |
1995 |
|
250 |
| YAMAHA |
WR |
1996 |
|
250 |
| YAMAHA |
WR |
1997 |
|
250 |
| YAMAHA |
YZ |
1993 |
|
250 |
| YAMAHA |
YZ |
1994 |
|
250 |
| YAMAHA |
YZ |
1995 |
|
250 |
| YAMAHA |
YZ |
1996 |
|
250 |
| YAMAHA |
YZ |
1997 |
|
250 |
| YAMAHA |
YZ |
1992 |
|
250 |
| YAMAHA |
YZ |
1998 |
|
250 |
| YAMAHA |
WR |
1992 |
|
250 |
| YAMAHA |
WR |
1993 |
|
250 |
| YAMAHA |
WR |
1994 |
|
250 |
| YAMAHA |
WR |
1995 |
|
250 |
| YAMAHA |
WR |
1996 |
|
250 |
| YAMAHA |
WR |
1997 |
|
250 |
| YAMAHA |
WR |
1997 |
|
250 |
| YAMAHA |
WR |
1997 |
|
250 |
| YAMAHA |
WR |
1998 |
|
250 |
| YAMAHA |
YZ |
1992 |
|
250 |
| YAMAHA |
YZ |
1993 |
|
250 |
| YAMAHA |
YZ |
1994 |
|
250 |
| YAMAHA |
YZ |
1995 |
|
250 |
| YAMAHA |
YZ |
1996 |
|
250 |
| YAMAHA |
YZ |
1997 |
|
250 |
| YAMAHA |
YZ |
1998 |
|
250 |
| YAMAHA |
WR |
1992 |
|
250 |
| YAMAHA |
WR |
1993 |
|
250 |
| YAMAHA |
WR |
1994 |
|
250 |
| YAMAHA |
WR |
1995 |
|
250 |
| YAMAHA |
WR |
1996 |
|
250 |
| YAMAHA |
WR |
1997 |
|
250 |