AEM Bosch LSU 4.9 UEGO Replacement Sensor

AEM Bosch LSU 4.9 UEGO Replacement Sensor

Marsoni

M251S

$150.94

Get it in 3 business days with 1 day shipping. Friday, May 29

AEM Bosch LSU 4.9 UEGO Replacement SensorAEM's Bosch 4. 9LSU Wideband UEGO O2 replacement sensor kit includes only the sensor (with attached cable and male connector) and is intended to replace an existing mounted wideband sensor used with AEM wideband air fuel UEGO controllers. 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

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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actually surprised how great the product is and way better priced then other companies. its sticky and also has thickness enough to cover metal parts on cars. i would recommend 100% just ordered another 18ft for the rear deck and to have some extra! does not smell. easy to install and helps stop vibration.

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Reviewed in the United States on March 10, 2026