Description
If you’re pushing your Yamaha 80 to the limit, OEM pistons won’t cut it—especially at higher displacement. The WSM Piston Kit delivers the durability and thermal management you need to maintain peak performance without sacrificing reliability, whether you’re on the track or the trail.
The MOS2-coated skirts actively dissipate heat through the piston walls, reducing friction and extending component life under sustained high RPM. Paired with specially hardened ring grooves and an improved E-clip design, this kit gives you the margin of safety that separates consistent winners from the rest.
Order one kit per cylinder and bolt in confidence—you’re getting construction that meets or exceeds OEM standards, with measurable gains in power delivery and longevity.
- Bore: +.75 mm oversized
- MOS2-coated skirts
- Heat-dissipating design
- Hardened ring grooves
- Improved E-clip design
- Includes: piston, rings, pin, clips
- One kit per cylinder
- Additional rings: available separately
- Meets/exceeds OEM quality
- MPN: 5053606K
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