APPLICABLE MODELS – Air Fuel Ratio Sensor Compatible with Tacoma 2.4L L4 1995-2000 Tacoma 2.7L L4 1996-2000 Tacoma 3.4L V6 1999-2000 Tundra 4.7L V8 2000-2002. FIT VEHICLES – O2 Oxygen Sensor Heated Compatible with 4Runner 3.4L V6 1998 Pickup 3.0L V6 1994-1995 Sequoia 2001-2004 T100 2.7L L4 1995-1998 T100 3.4L V6 1998.