NICHE 60cc Big Bore Piston Gasket Cylinder Head Kit for Yamaha PW50 YF60S 4-Zinger Tri-Zinger BP4-HS000-00 517-11181-01;

NICHE Cylinder Kit Part Number: MK1000960

Includes: Cylinder, Cylinder Head, Piston, Piston Rings, Wristpin, Needle Bearing, Circlips (2), Head Gasket, Base Gasket, Cylinder Studs (4), Cylinder Stud Nuts (4), Spark Plug

Known Brand Compatibility: Yamaha

Known Model Compatibility: PW50 QT50 Towny Yamahopper YT60 Tri-Zinger

Direct Replacement For: 4J2-11311-01-00, 3L5-11311-01-00, 36R-11311-00-00, 36R-11111-00-00, 3L5-11111-02-00, 4J2-11111-01-00, 2-BPR7HS

Big Bore Kit for your PW50. Included a 60cc Cylinder ad Cylinder Head. Cylinders are factory cast with bigger ports and cooling fins for better performance. This kit will work with your OEM exhuast and intake, this kit is ready to bolt on right out of the box!