OKAY MOTOR Upstream Oxygen Sensor for 2003-2004 Toyota Corolla Matrix 1.8L Position: Upstream Part #: 234-4800, 88971384, 89465-13030 New Aftermarket Replacement Unit. 180-days Manufacturer Type Warranty Limited. Applications: 2003-2004 Toyota Corolla 1.8, 2003-2004 Toyota Matrix 1.8L, 2003-2004 Pontiac Vibe 1.8L