Cylinder Assembly 150, 3 port. Fits all 3 port motors. Comes with piston, rings, and wristpin. Nice bolt on upgrade from a 125cc cylinder.
You're gonna need a base gasket (part number 122790) an exhaust gasket (part number 58498), 8mm studs (part number 0500-1036) and 8mm nuts (0500-1037), so you might as well add them to your cart now.