Description
The Wiseco Piston Kit PK1177 is engineered for serious KX65 performance. If you’re rebuilding a worn top-end or chasing reliability in competitive riding, this forged piston assembly delivers the strength and precision you need to handle sustained high RPM operation without compromise. Wiseco’s high-silicone forged construction minimizes thermal expansion, keeping clearances tight and performance consistent across extended riding sessions.
- Forged piston construction
- High-silicone material blend
- Minimal thermal expansion
- Includes compression rings
- Wrist pin and circlips
- Complete gasket kit
- Wiseco rings only
- CNC-precision fitted
- Fits KX65 2000–2020
- MPN: PK1177
- 2-cycle engine application
- Factory tested assembly
- Bolt-on installation









