Emission Control - The Vapor Tank Purification Valve controls the flow of gasoline vapor to ensure the steam emitted by the engine during start-up, acceleration, and driving meets environmental standards. It reduces harmful gas emissions to protect the environment and improve air quality. Fuel Economy - The design effectively recovers and utilizes gasoline vapor, reintroducing it into engine combustion to improve fuel efficiency and reduce fuel consumption, beneficial for car owners. Engine Performance - Normal operation helps maintain engine stability by controlling the steam cycle, preventing performance degradation or malfunctions due to steam blockage. Part Number: 1F7313975, 3U5Z9C915C, 9U5Z9C915B Fit for: 2004-2010 Explorer, 2007-2010 Explorer Sport Trac, 2005-2006 , 2004-2011 , 2004-2005 B2300, 2004-2008 B3000, 2004-2006 B4000 Color: As shown Material: ABS Package Contents: 1 x Vapor Canister Purge Valve Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.