Description
If you’re rebuilding a Kawasaki 300 engine or pushing for more power and reliability, a quality piston kit is non-negotiable. The WSM +.75mm piston kit delivers OEM-matching quality with genuine performance upgrades—specifically the MOS2 coating on the skirts that actively reduces friction and pulls heat away from the piston crown, translating to improved power output and extended engine life. Whether you’re a serious racer or a meticulous DIY builder, this kit ensures your engine can handle sustained demands without compromise.
What’s Included:
- Piston with hardened crown
- Piston rings (compression and oil)
- Wrist pin
- Improved E-clip design
Technical Specifications:
- Vehicle: Kawasaki 300
- Oversized: +.75mm bore
- MPN: 50-255-06K
- Material: High-grade aluminum
- Skirt coating: MOS2 (molybdenum disulfide)
- Crown: Specially hardened
- Heat dissipation: Enhanced via coating
- Friction reduction: MOS2 coating
- Installation: Bolt-on replacement
- Order quantity: One per cylinder
- Additional rings: Available separately







