[O2 Sensor Upstream & Downstream] check your Vehicle and Compatible Models in the product carefully to make you choose the correct o2 sensor. Compatible with 1996-2000 4Runner L4-2.7 & V6-3.4; 1995-1998 T100, L4-2.7; 1996-1998 T100 V6-3.4; 1995-2000 L4-2.4 & L4-2.7 & V6-3.4; 2000 V6-3.4. [Oxygen Sensors Replacement ]234-4162, 234-4161, 234-4153, 234-4154, 234-4205, 234-4624, 24552, 24554, ES20070, ES20072, SG1839, SG470, SG841, 25024154, 5S4037, 5S4053, 5S4493, SU4932, SU6782, 89465-80034, 8946535320, 8946509020, 8946509140, 8946509190, 8946509210, 8946509220, 8946509310. [Brand New & High Quality]Our O2 Sensors feature double protection layer, aluminum oxide trap layer, filter and stainless steel housing. It can improve the efficiency of automobile engine operation to protect your car. Type: Air Fuel Ratio Oxygen Sensor Condition: New Manufacturer part :234-4162 Fitment Type: Direct Replacement Application: Compatible With 4Runner 1996-2000 2.7L L4 3.4L V6 RWD/4WD,Upstream & Downstream (Exc.Calif.) T100 1996-1998 3.4L V6 RWD/4WD,Upstream & Downstream T100 1995-1998 2.7L L4 RWD/4WD,Upstream & Downstream 1998-2000 2.7L L4 RWD,Upstream(Exc.Calif.) 1998-2000 2.7L L4 4WD,Upstream & Downstream (Exc.Calif.) 1995-1999 2.4L L4 Upstream & Downstream 1995-1998 3.4L V6 RWD,Upstream & Downstream 1999-2000 3.4L V6 RWD,Upstream(Exc.Calif.) 1995-2000 3.4L V6 4WD,Upstream & Downstream (Exc.Calif.) 2000 3.4L V6 Upstream & Downstream (Exc.Calif.) Colour:Photo Color Material:Metal Package Contents: 1 x Oxygen Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.