Note: Please confirm the OE number before purchasing!!! Specification: Condition: 100% Brand New Product Name: Oxygen Sensor Fitment Type: Direct Replacement OE number:234-4668, 15284, 21546, SG1857 Replacement: Direct Plug-In Replacement Interchange Part Number:234-4668, 15284, 21546, SG1857 Superseded Part Number:15156,15564, 234-4342, SG1855 Features: * 100% test before shipment * The reduction of harmful emissions * The increasing of fuel economy * The improvement of engine performance * Prevent premature failure of the catalytic converter. .
