Top end kit for 1987-2006 Polaris TrailBlazer 250 Trail boss 250
-This cylinder has the oil injection nipple. If you do not have, cap off before use.
Kit includes:
- OEM Polaris cylinder bored to fix next sized over Wiseco piston kit
- New Wiseco piston, rings, wrist pin and cir clip
- New top end gaskets set
- Ready to install kit