Genuine OE BOSCH 0258010340 / LS10340 Oxygen Exhaust Probe Lambda Sensor 4 Poles A Lambda sensor in perfect condition is a requirement for a reliably functioning engine & thus for ensuring low fuel consumption, low pollutant emissions & the correct emission values. Bosch Lambda sensors are unbeatable thanks to their long service life, excellent operation & optimum engine compatibility. Up to 15 % fuel savings compared to an old Lambda sensor Avoidance of expensive catalytic-converter damage Compliance with stringent emission standards enhanced performance ITEM SPECIFICS: Number of Poles: 4 Overall Length: 853 mm Recommended replace interval: 250000 km