GY6 49cc 50cc intake manifold spacer insulator for scooter moped ATV go-kart buggy engine carburetor compatible with 139QMB 139QMA models.This spacer insulator connects the carburetor to the intake manifold a secure fit and proper alignment.It helps maintain consistent air and fuel flow to the engine.Designed for use in small engine applications including motorcycles, bikes, and off-road vehicles.The insulator provides thermal separation between the manifold and carburetor to reduce heat transfer.Made from materials suitable for engine use.Easy to install using standard tools.Disclaimer of Affiliation: This is an aftermarket component.Brand and model mentions are for illustrative compatibility only.