Today's cars can have up to six oxygen sensors; each of them is critical to proper engine function. DENSO First Time Fit Oxygen Sensors are specifically designed to meet the challenging demands of today's engines.

A cars oxygen sensor is constantly exposed to a barrage of harmful contaminants that can rob it of its ability to produce an efficient reading. Engine lubricants, sealants, additives, silicon and oil can damage a sensors element.

DENSO First Time Fit Oxygen Sensors are coated with a special formulation of aluminium oxide to trap impurities outside of the ceramic element.

DENSO First Time Fit Oxygen Sensors have been rated TWO TIMES MORE RESISTANT to silicon and lead poisoning, in head to head testing against leading competitors.