Description
If you’re rebuilding a Yamaha PW80 or BW80 engine, a worn piston directly impacts throttle response, fuel efficiency, and overall reliability. The Wiseco 48.00mm oversize kit restores—or exceeds—factory performance by pairing high-silicon aluminum with precision ring geometry, giving you the thermal stability and durability needed for consistent power delivery. This is a complete, bolt-together solution that eliminates guesswork during top-end work.
- Bore Size: 48.00mm oversize
- Material: High-silicon aluminum alloy
- Fitment: Yamaha PW80, BW80 (1983–2006)
- Includes: Piston, rings, wrist pin, circlips
- Heat Resistance: Aerospace-grade construction
- Design: Low-friction skirt profile
- Installation: Bolt-on top-end assembly
- MPN: 649M04800
