Vapor Purge Valve/Carbon Canister Solenoid Valve fit For Buick fit For Chevrolet fit For Cadillac fit For Silverado. OEM NO. : 12606684. Reduces fuel gas emissions: effectively controls and recovers petrol vapour evaporated from the automotive fuel system, reducing pollutant emissions. This essential emission control component directs fuel vapors from the charcoal canister into the engine's intake manifold for combustion. It opens under specific engine conditions, allowing these vapors to be cleanly burned in the combustion chamber., Manufacturer: GAUBXCT