AEM Bosch LSU 4.2 Replacement O2 Sensor
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 Jul 6 - Jul 11

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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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Kris
Houston, US
★★★★★ 5
Great mount!
Great under desk NAS mount. Adjustable and sturdy, easy to install. Worked well for my Qnap TR-004 four slot DAS. I used 5/64 drill bit for the holes. Since my desk has a rear lip I reused rear stopper bit as a headphone hanger. I bend it slightly to a hook shape.
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Reviewed in the United States on May 6, 2025
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Verified Purchase
Brian
Alexandria, US
★★★★★ 5
Tucks my NAS away
Sturdy and a major space saver. Worth the money to free up valuable desk space. Held my 6 bay QNAO NAS perfectly. Highly recommend.
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Reviewed in the United States on November 28, 2025
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Verified Purchase
Christopher Shaw
Port Orchard, US
★★★★★ 5
Perfect for under-desk NAS/DAS
Worked perfectly for my TerraMaster D320 DAS
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Reviewed in the United States on January 20, 2026
P
Verified Purchase
Pedro
Whiting, US
★★★★★ 5
Absolutely solid!
Color: Black, Style: Fixed Width
I wish they made a longer version, because it's kinda pricey to buy two... but I made it work with one I wanted a metal one that I could screw on so I didn't have to worry about it ever again... ever. It's holding everything and doing a great job at it.
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Reviewed in the United States on March 4, 2026
M
Verified Purchase
Mark Urso
Draper, US
★★★★★ 5
Got Some Work To Do!
Color: Black, Style: Adjustable Width
Inspired by a kitten, I endeavored to clean up behind my audio desk, where a maze of wires is the picture of confusion, but apparently also a wonderful place to pull and tug, nap and chew ... so I got this. Then it sat there for a week while I thought about it. Felt complicated, organizing that big wad of a mess of wires. But when I finally got to it, it wasn't too bad at all, and the difference is huge! This item fit under the back of the desk perfectly and provides a deep tray you can immediately start to run wires though. Eventually you'll get there! Good luck!
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Reviewed in the United States on November 26, 2025

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