PISTON KIT 81-20 PW50 40.00, WISECO 653M04000 PeeWee

Part No. 56-W938+000.WI (oro2u.com)

YAMAHA
PW50 1981 - 2020 (PeeWee),

Wiseco High-Performance Piston Assembly - 653M04000
Wiseco forged pistons are superior in strength and design We carry the full line of Wiseco forged pistons, big bore kits and related items

Cylinder boring required for oversizes
Included Items: One 40mm piston Two 1574CD rings Two CW10 circlips One S630 wrist pin