760-255-2562 ... New Genuine OEM Toyota Oxygen Sensor. Part number: 89465-39735 Designed for California Specifications No.2. Purchased from Toyota dealership. For a 1998 Toyota Tacoma, 4 cyl. 5 speed, 4-wheel drive, 2 door extended cab, 2.7 L Gas DOHC Naturally aspirated pick up I do not have a parts number catalog but you can refer to a dealership parts number catalog if unsure.