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My Garage Auto Parts
(19004)
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AEM 30-0300 X-Series Wideband Gauge AFR O2 Air Fuel Ratio 2 1/16" 52MM

US $199.95
ApproximatelyC $277.01
Condition:
New
More than 10 available
Breathe easy. Free returns.
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Shipping:
Free Standard Shipping.
Located in: San Diego, California, United States
Delivery:
Estimated between Tue, May 6 and Fri, May 9 to 43230
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
60 days return. Seller pays for return shipping.
Payments:
     Diners Club

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Seller assumes all responsibility for this listing.
eBay item number:185909520210
Last updated on Mar 05, 2025 05:39:03 ESTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Custom Bundle
No
Includes
Black bezel and black dual faced faceplate
Features-6
Auto dimming feature
Features-4
52mm gauge diameter and slim 0.825” gauge depth
Features-5
Gauge cup depth only .200” deep!
Features-2
Compatible with vehicle/system voltages up to 16V
Features-3
Can display AFR values in hundredths of %
Features
Illuminated (Backlit)
Gauge Type
Digital Air/Fuel Ratio
Diameter
52mm (2-1/16”)
Shipping Policy
FREE EXPEDITED SHIPPING
Non-Domestic Product
No
Other Part Number
300300 / AEM 30-0300
Warranty
1 Year (excluding sensor)
Fitment Type
Performance/Custom
Modified Item
No
Specifications-6
0-5V Output Lambda values from .58 to 1.23
Specifications-5
CANbus Output Lambda values from .55 to 2.00
Type
Fuel Gauge
Interchange Part Number
New seven-segment center display, 87% larger than the 30-4110, 30-4100, AEM A/F Gauge, AEM Wideband Controller Gauge, AEM Wideband A/F Ratio Gauge, AEM Air Fuel Ratio Gauge with 4.9 Bosch Sensor
Return Policy
60 Day Free Return
Country/Region of Manufacture
United States
Specifications-2
Display Lambda values from .55 to 2.00
Specifications-1
Display Gasoline values from 8.0:1 to 20.0:1 AFR
Specifications-4
CANbus Output Gasoline values from 8.0:1 to 20.0:1 AFR
Specifications-3
0-5V Output Gasoline values from 8.5:1 to 18.0:1 AFR
UPC
0672713967163

About this product

Product Information

This AEM X-series Wideband UEGO Air Fuel Sensor Controller Gauge is mainly designed to gauge or sensor the current fuel ratio for certain vehicle models, giving a precise estimate for peace of mind. Its AF Ratio is 30-0300 and it measures 2 1/16th inches in diameter and comes in a striking black. Read and report values correctly and enjoy the very readable features of this reliable unit.

Product Identifiers

Brand
AEM
Manufacturer Part Number
300300
GTIN
0840879024437, 0672713967163
UPC
0840879024437, 0672713967163
eBay Product ID (ePID)
1349886368

Product Key Features

Performance Part
Yes
Vintage Part
No
Style
Racing
California Prop 65 Warning
Cancer & Reproductive Harm
OE/OEM Part Number
30-0300
Display Type
Digital
Color
Black
Universal Fitment
Yes
Material
Plastic
Superseded Part Number
30-4100

Dimensions

Item Width
5.400
Item Diameter
16 in
Weight
1

Item description from the seller

About this seller

My Garage Auto Parts

99.4% positive feedback•96K items sold

Joined Apr 2013
Usually responds within 24 hours
My Garage Auto Parts is a leading eBay store that has been serving car enthusiasts since 2013. From the very beginning, we have been committed to offering an extensive range of performance auto parts ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

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Seller feedback (18,905)

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  • 1***l (180)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Item arrived in 27 hours from the time I ordered it! Perfect condition, item just as described. I had a few questions pror to ordering and their communication was top-notch, replies within a couple hours. They even cut me a deal! Highly recommend this seller!
    Dee Zee 3" Cab Length Black Round Nerf Bars universal (#185909520018)
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Not only was the pricing lower than anyone else, with incredibly fast shipping, but the seller was an absolute pleasure to work with. They were extremely responsive in helping me sort out a shipping concern and incredibly helpful. Shocks arrived as described, in great condition. Definitely earned a repeat customer, would highly recommend!
  • x***x (599)- Feedback left by buyer.
    Past month
    Verified purchase
    I haven't had had the shocks installed yet. Aside from that, super happy about the PRICE, COMMUNICATION, and the SHIPPING speed! Will update if something wrong after install. But as of now will definitely do business with them again!!🙂
    Bilstein Shocks B6 HD Monotube Gas Front Rear Fits 1997-2013 Chevrolet Corvette (#184234302370)
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Product ratings and reviews

Learn more
4.9
236 product ratings
  • 220 users rated this 5 out of 5 stars
  • 11 users rated this 4 out of 5 stars
  • 2 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 3 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 155 reviews
  • by tonyrt44
    Sep 16, 2021Top favourable review

    Accurate and easy to read

    I have used both 30 & 60 psi range gauges and I will never be using any other brands boost gauges. Easy to read, even in off road applications. Comes with all needed hardware for installation.

    Verified purchase: YesCondition: NewSold by: autoshopping24.store

  • by berry052
    Oct 31, 2018

    AEM 30-0300

    One of AEM's newest most recent wideband for 2018... This gauge is also on social media as 1 of top ten to choose, and I believe 2nd or 3rd in the order... I chose this for the quality of this being the first single board design and jst hobby style harnesses to plug and play to the guage... The setup is also great bc it is also a lambda and uego read on the LSU aswell... This means e85 compatible... The no obstacles that were of AEM guages of yesterday are in the past bc this opens doors for more of these guages to be standard so the harness is plug and play the guage is single board, has digital dim and blackout feature.. So many things that make this a can't go wrong choice, other than being pricey in the market; which was only thing was and I waited for a great price.. This is AEM's ...

    Verified purchase: YesCondition: NewSold by: circuitspecr

  • by dysan911
    Dec 31, 2018

    Peace of mind at a Glance!

    This is one of the best gauges for monitoring A/F because of the big red easy to read from a glance numbers as well as the parameter light that will definitely let you keep your eye on the road / track ahead and still catch a glimpse of the green light without actually looking directly at it. It's just in your line of site so you know your A/F is fine

    Verified purchase: YesCondition: NewSold by: spreetail

  • by travibaker-gome-0
    Oct 20, 2018

    Awesome product

    Works great, makes logging your car with a db9 cable very easy. Worth every penny.

    Verified purchase: YesCondition: NewSold by: circuitspecr

  • by okevin212
    May 09, 2020

    Yeah boi

    I read and followed the directions for the oxygen sensor install angle and fixed any exhaust leaks. it works great and can finally fine tune my carburetor.. I found out why one of my many carbs always got horrible mileage even with very lean jetting, the idle air bleeds were about .012" too small

    Verified purchase: YesCondition: NewSold by: tsukikagesoul811

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