Description
Universal Parts M12x1.25 Nut with serrated base used to hold the flywheel assembly to the crankshaft in 150cc GY6B 4-stroke ZNEN engines. May also be used in other applications.
Serrated Base
Thread Size: M12x1.25
Overall Outer Diameter: 22.5mm
Height: 11mm
SUPPORTED MODELS: BN157QMJ-3A, Various unlisted makes/models