Wsm Piston Kit - Standard - Yamaha 50-521P

New light weight design incorporates shorter piston skirts with an PTFE coating at critical wear points for quicker revs and less heatImproved intake skirt with larger inlet ports for increased...

Quality and construction that meets or exceeds OEMFeature improved E-clip designContain piston, rings, pin and clipsAdditional rings available separatelyOrder one per cylinderSkirts have a...

Quality and construction that meets or exceeds OEMFeature improved E-clip designContain piston, rings, pin and clipsAdditional rings available separatelyOrder one per cylinderSkirts have a...