Description
When your YZ85’s top-end starts losing compression or showing signs of wear, a quality piston kit is essential to restore engine performance and reliability. The Wiseco PK1343 delivers OEM-spec fitment with precision CNC machining and aerospace-grade forged aluminum construction, ensuring your rebuild maintains stock performance characteristics while extending engine life. This kit includes all necessary gaskets for a complete top-end refresh, eliminating the need for separate purchases and simplifying your rebuild process.
- Fits: Yamaha YZ85 (2002-2018)
- MPN: PK1343
- Material: Aerospace-grade forged aluminum
- Manufacturing: CNC-machined precision
- Includes: Complete gasket set
- Installation: Bolt-on top-end
- Compression ratio: OEM-equivalent
- Piston coating: High-temperature resistant
- Wrist pin: Heavy-duty design
- Ring set: Included, pre-sized









