Scooter 57.5mm Cylinder Kit For Outlook150 Outlook 150cc QJ158MJ 4-Stroke 100080440 This cylinder kit is designed for compatibility with the Outlook150 and QJ158MJ 150cc 4-stroke scooter models.It features a 57.5mm bore diameter and is engineered to replace the cylinder assembly.The kit includes a cylinder, piston, piston rings, and wrist pin, providing all necessary components for engine rebuilding or performance.It is constructed to meet standard dimensional specifications for fitment and.This part is intended for use in requiring the 100080440 configuration.