Oxygen Sensor for Toyota 4Runner 99-02 / Tundra 01-04 4-Wire 9.1 in. Wire Length 0-1 V Bolt-On Mounting FREE 1-year UNLIMITED mileage warranty coverage on Evan-Fischer items purchased thru AUTO PARTS GIANT Store A high quality, Direct Fit OE Replacement Oxygen Sensor from Evan-Fischer 4-wire, Connector Gender: Male, Wire Length: 12.2 in. Air/Fuel sensor