AEM 4.9LSU Bosch Oxygen Sensor (30-2004)

AEM 30-2004 replacement 4.9LSU Bosch oxygen sensor for the newer AEM wideband UEGO 30-4110 air/fuel controller. Purchase includes one sensor with male connector as pictured.

These sensors have a laser-etched, calibrated resistor in the sensor’s connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensor’s output. The wideband sensor is laboratory-calibrated at the Bosch factory, accurate to 0.1 AFR and never requires free-air calibration when used with an AEM wideband AFR controller.

*Updated Design October 2024:
Same part number, but the length of the cord is now only 18" vs the previous design that was about 35" long.

Features:
• Accurate to 0.1 AFR
• Never requires free-air calibration when used with an AEM Controller and connector plug.
• Specifically designed for use with AEM Wideband UEGO controller Part Number 30-4110
• Replacement sensor only

Replacement Sensor for the following AEM Wideband Controllers:
• 30-4110 - Digital Wideband UEGO Gauge
• 30-0300 - X-Series Digital Wideband UEGO AFR Gauge
• 30-0310 - X-Series Inline Wideband UEGO AFR Controller
• All other AEM Wideband Controllers please refer to the 30-2001 Bosch LSU 4.2 Replacement Sensor

Discounts:
We are sorry, but discount codes are not available for AEM products.

See more AEM Products