Skip to content

AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge

Marsoni M251S
Sale price$137.62
Pay 4 payments of $34.41 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
AEM X-Series OBDII Wideband UEGO AFR Sensor Controller GaugeAccurate AFR data is critical when tuning an engine. Running rich (very low air fuel ratio, excessive fuel) can cause a loss in power, while running too lean (very high air fuel ratio, not enough fuel) may result in serious engine damage. Using a wideband air fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency. AEM has a comprehensive line of highly
Easy Shipping

Quick Dispatch:

Your AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge ships.

Need Help?
Questions about AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge in your area.

Get Shipping Estimates

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
4.7 ★★★★★
Based on 1449 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Robi
San Leandro, US
★★★★★ 4
Good fit, but loosens easily
Fit perfect but the wind blowing makes the whole umbrella move the part enough to loosen it so continually having to tighten, which is a pain since you have to do so from the bottom of the base.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2025
E
Verified Purchase
Ed
Louisville, US
★★★★★ 5
works for me!
Seems much higher quality than the original, install is simple, and I like that there are 2 screws for hold the umbrella tight and straight
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
J
Verified Purchase
JeepGuy
Birmingham, US
★★★★★ 5
Great replacement mount.
Great replacement that comes with 2 different inserts. Easy to replace our rusted out one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
M
Verified Purchase
MandosTools
Draper, US
★★★★★ 5
Worth my money!
Love this! I purchased a high priced large umbrella from Living Spaces with a weighted plate. Well with frequent strong winds on my patio the bar just was bending and couldn’t handle it. So purchased this. Feels sturdy and it’s longer so provides more support. For sure already noticing a difference. Glad I made this purchase. Would recommend ! It also came with varying sized cylinders for different pole widths. Therefore , you will end up not using one of them. Don’t regret buying this. It works!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2025
K
Verified Purchase
Kim
Bozeman, US
★★★★★ 5
Good value
Adapted to my umbrella pole easily
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026

recommand products