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AEM

AEM 52mm Wideband UEGO Air Fuel Ratio Sensor Controller Gauge w/White Face Kit

  • Based on 158 reviews
Condition: New
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Availability: In Stock.
Fulfilled by BoostProjects
Arrives Jun 14 – Jun 15
Order within 20 hours and 13 minutes
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Features

  • X-Series Wideband UEGO AFR Controller Gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitor wideband AFR controllers. White bezel kit included.
  • Black bezel and black dual faced faceplate, silver bezel/white gauge option included.
  • Display Lambda values from .55 to 2.00
  • Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires.
  • Includes Bosch 4.9LSU wideband UEGO sensor. 52mm gauge diameter and slim 0.825 gauge depth.

Description

X-Series Wideband UEGO AFR Controller Gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitor wideband AFR controllers Includes Bosch 4.9LSU wideband UEGO sensor Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires Compatible with vehicle/system voltages up to 16V 0-5V & RS232 output for data logging and feedback control, AEMnet (CANbus) for data l

Brand: AEM


Material: Metal


Item dimensions L x W x H: 5 x 5 x 6 inches


Item Weight: 0.01 Ounces


Thread Type: 1/8" Npt


Brand: ‎AEM


Material: ‎Metal


Item dimensions L x W x H: ‎5 x 5 x 6 inches


Item Weight: ‎0.01 Ounces


Thread Type: ‎1/8" Npt


UPC: ‎730656668964


Manufacturer: ‎AEM


Item Weight: ‎0.01 ounces


Product Dimensions: ‎5 x 5 x 6 inches


Item model number: ‎30-0300 + 30-0300-ACC


Manufacturer Part Number: ‎30-0300-W


OEM Part Number: ‎30-0300 + 30-0300-ACC


Date First Available: May 9, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 14 – Jun 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Must have for tuning & data logging
I needed this to communicate with hp tuners data logging. Very simple & easy to install
Reviewed in the United States on September 11, 2025 by Katie P.
    • Great gauge, well worth the price
Easy to install, reacts nearly instantly, instructions are well-written and exhaustive. I have this feeding the AFR input for a Megasquirt PNP2 controller and they are a happy couple. The hundredths place is a nice touch. I have this gauge mounted to my steering wheel column and I can roughly gauge my AFR while watching the road during white-knuckle pulls with the bright scrolling colored LEDs. ... show more
Reviewed in the United States on December 5, 2017 by Wesley Hawkins
    • Highly recommended
Works great! Helped me tune my 67 mustang.
Reviewed in the United States on June 19, 2025 by Steve Arechiga
    • Gauge works just right.
Read the instructions carefully it is very important. After 2 replacement the gauge works great. I went to the muffler shop and had them weld the bung into the area specified by the instructions (that is very important) ran the wires to the gauge. Don't tighten the gauge to tight even finger tight may be too much. I just barely tightened the nuts and it works great. Dusty and Anthony at AEM were great they helped me out a lot. Great purchase no regrets. ... show more
Reviewed in the United States on August 7, 2024 by AnneB
    • The gauge is great
Review Image by Shopper Shopper
Review Image by Shopper Shopper
Only reason I gave it a 4 star instead of a 5 is because it wasn't packed great. The grease from the threads of the sensor was smeared in the box. And also I only bought it from here because with my prime it would be here 2 days from when I purchased it. I bought it immediately because I needed it quick and the next day it said my package may be delayed and my new delivery date was for 3 days later. That part was annoying. The gauge itself looks great. About to install and confirm it works. Some people said they didn't get the white face like the description says but I did get mine. ... show more
Reviewed in the United States on January 17, 2025 by Shopper Shopper
    • Not waterproof
Works well, not water proof so if putting in off road car snake it removable or cover it when you wash.
Reviewed in the United States on March 16, 2025 by tim
    • Buy the Innovate MTX-L
The media could not be loaded. I purchased one and it failed in short order, thankfully Amazon allowed me to return it. I purchased an Innovate MTX-L to replace it and it’s built better, the harness quality is better the gauge feels like higher quality. AEMs customer support was non existent, I’m glad it was because I’ve found a better solution. ... show more
Reviewed in the United States on October 19, 2025 by Jake
    • Love/hate
Review Image by Barry Booth Barry Booth
I love these wideband gauges by AEM but I will say I hate how quickly the sensors burn out on them, especially if you don’t have it placed into the exhaust at just the right angle. Any kind of moisture will destroy the sensor in no time.. literally like working the first day, second day burnt out.
Reviewed in the United States on August 7, 2023 by Barry Booth Barry Booth

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