Dorman's Vapor Canister is engineered from robust materials. As part of the Evap system, it effectively stores fuel vapors from the gas tank and sends them to the engine for combustion. Replacement helps control hydrocarbon emissions from escaping into the environment. Product Features:Direct replacement for a proper fitA necessary replacement item for passing inspection in certain statesReplacement clears the check engine lightRigorous on-vehicle and bench testing have been undertaken to ensure trouble-free performance