Description
The ATHENA Gasket Kit P400485160183 is engineered for YZ250 owners who demand reliability and sustained performance in high-heat environments. Factory gasket sets deteriorate under repeated thermal cycles, compromising compression and allowing coolant seepage—this kit restores OEM sealing integrity with upgraded materials. Pair it with the included forged piston and nickel-carbide-coated cylinder for a complete top-end refresh that handles aggressive riding without compromise.
- YZ250 specific fitment
- Aluminum cylinder, nickel-carbide coated
- Enlarged water jackets
- Forged piston, molybdenum coated
- Complete gasket kit included
- Bolt-on installation, no machining
- Detailed step-by-step instructions
- MPN: P400485160183
