4PCS O2 Oxygen Sensor Upstream and Downstream 234-4668 234-4256 Compatible

O2 Oxygen Sensor Compatible with Audi A4 1997-1999, A4 Quattro 1997-2000, A6

O2 Oxygen Sensor Pack of 2 Upstream Downstream 234-4242 234-4530 Compatible

O2 Oxygen Sensor Compatible with Mazda Miata 1994-1997 1999-2000, L4 1.8L,

O2 Oxygen Sensor Compatible with Mitsubishi Montero 1995 1996 1997 1998 1999

O2 Oxygen Sensor Compatible with Mazda Miata 1999-2000 L4 1.8L, Miata 1996

O2 Oxygen Sensor Compatible with Toyota Camry 1996, Celica 1996 1997 1998