Bosch Wideband LSU 4.9 5 Wire O2 Sensor

The Prosport Bosch 17025 is a 5-wire wideband oxygen sensor designed for air/fuel ratio kits. It provides a precise indication of the air/fuel ratio across a broad range, from 10:1 to 20:1. This sensor utilizes planar construction with a special two-part sensing element to measure oxygen in the exhaust.

The sensor features an internal heater that rapidly brings it to its operating temperature of 700-800°C (1400°F) within 20 seconds. It offers a fast response time of less than 100 milliseconds to changes in the air/fuel mixture, nearly double the operating temperature of conventional sensors. The sensor has a length of 1000mm (39.37 inches).