APPLICATION- Oxygen Sensor Upstream Downstream Replacement for 2001 2002 2003 2004 Toyota Tacoma 2.7L 2.4L 3.4L.
REPLACEMENT PART NO.- Oxygen Sensor Replace 234-9001, 234-4189.Before purchasing an oxygen sensor, please carefully check your vehicle's year, brand and model, image, and part number to confirm compatibility.
HIGH STABILITY- BLPextrm Oxygen Sensor has stainless steel shell,aluminum oxide capture layer,PTFE filter and pre coated thread.Solve the problems of unstable idle speed,frequent stalling and poor acceleration for your car.
OXYGEN SENSOR WORKING PRINCIPLE- Oxygen sensor trap layer prevents damage to the platinum electrode. Measure the oxygen content after combustion, convert it into a voltage signal and send it to the engine computer to achieve closed-loop control of excess coefficient.
24-HOUR RESPONSE - Packag include 1 upstream oxygen sensor and 1 downstream oxygen sensor. If you have any installation issues, please contact us via email. We will reply to you within 24 hours.