SKU: 95989320774

AEM Bosch LSU 4.2 Replacement O2 Sensor

Sale price$120.55 Regular price$133.95
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

AEM Bosch LSU 4.2 Replacement O2 SensorAEM's Bosch 4. 2LSU 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 sensors connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensors

AEM's Bosch 4.2LSU 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 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. 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 controllers
  • Replacement sensor only
  • Replacement Sensor for the following AEM Wideband Controllers.

AEM Infinity Engine Management Systems:

  • 30-4100 - Digital Wideband UEGO Gauge
  • 30-4900 - Wideband Failsafe Gauge
  • 30-2310 - Inline Wideband UEGO Controller
  • 30-2340 - 4-Channel Wideband UEGO Controller
  • 30-2340-N - 4-Channel Wideband UEGO Controller - Nascar
  • 30-5130 - Analog Wideband UEGO Gauge
  • 30-5143 - Analog E85 Wideband UEGO Gauge
  • 30-2320 - X-WiFi Wideband/EGT Controller

For Digital Wideband UEGO Controller Part Number 30-4110 please refer to the 30-2004 Bosch LSU 4.9 Replacement UEGO Sensor PN 30-2004.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 95989320774

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Rayan McLeod
Los Angeles, US
★★★★★ 3
Worth the price
Size: 10, Color: Tan
A little tie on the valley,
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Reviewed in the United States on May 20, 2026
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Thomas Micheal Bennett
Lowell, US
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Reviewed in the United States on December 24, 2025
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daira flores
Boise, US
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Le quedaron bien a mi hijos
Size: 8.5, Color: Black
El zapatos ese buenísimo
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Reviewed in the United States on December 3, 2025
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Shredder
Louisville, US
★★★★★ 5
Comfortable and Classic Dress Shoes That Look Great All Day
Size: 12, Color: Cognac
These dress shoes have been a great addition to my wardrobe. Right out of the box, they felt comfortable thanks to the cushioned foam insole. I can wear them for long days at work or events without my feet feeling sore, which is something I really appreciate. The faux leather upper looks polished and well-made. The cap-toe design and subtle contrast stitching give the shoes a classic, professional appearance that pairs perfectly with dress pants or a suit. They have a clean, timeless style that never feels outdated. The fit is true to size, and the lace-up closure provides a secure and adjustable fit. I also like the stability of the stacked heel and the non-slip sole, which gives me confidence when walking on different surfaces. Overall, these shoes deliver both comfort and style. They look sharp, feel supportive, and hold up well with regular use. I am very happy with this purchase and would definitely recommend them to anyone looking for reliable, classic dress shoes.
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Reviewed in the United States on December 18, 2025
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Dominic Castellanos
Grantham, US
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Reviewed in the United States on May 31, 2026

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