Description
If you’re rebuilding or refreshing your Yamaha 350, piston quality directly impacts engine reliability, power delivery, and longevity. WSM’s +.50 mm piston kit delivers OEM-equivalent construction with engineering improvements—particularly the MOS2-coated skirts that reduce friction, lower operating temperatures, and add measurable horsepower. Order one kit per cylinder to ensure consistent performance across your engine.
What’s Included:
- Piston
- Compression rings
- Wrist pin
- E-clips (improved design)
Technical Specifications:
- Yamaha 350 fitment
- +.50 mm oversized bore
- MOS2-coated skirts
- Heat-dissipating design
- Hardened ring grooves
- Nonabrasive coating
- Friction-reducing technology
- Bolt-on installation ready
- Additional rings available separately
- Meets/exceeds OEM specs
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