OKAY MOTOR Fuel Tank Vapor Vent Pressure Sensor for 96-10 Buick Cadillac Chevy GMC Hummer Fuel Vapor Pressure Sensor for Buick Cadillac Chevy GMC Hummer Olds Pontiac Part #: 16238399, AS302, 5S2066, EC2501, SU9552, SU1390,09377680 New Aftermarket Replacement Unit. 180-days Manufacturer Type Warranty Limited. Applications: Buick Cadillac Chevy GMC Hummer Olds Pontiac