... 4 wire planar type 4. TS1694 auto sensor o2 sensor lambda sensor universal oxygen sensor 1)Improved protection tube design provides increased ... ceramic element is highly stable, resisting damage due to vibration, for precise performance over a long service life 3 ... life. Features:Planar, not generic, top quality Zirconium lambda sensor 4 wire fitment - White+White (heater connections), Black (signal ...