As an Amazon Associate I earn from qualifying purchases.
A lot of buyers brought the wrong a/f gauge sensor because they don't pay attention to the plug and the length of the sensor. Please check these 2 features before purchase. Replace oe number17025, 0258017025, 304110, 300300, 300310.
9 lsu wideband Controller Gauge. Premium qualitydurability matters, that is why our o2 sensor is crafted from high temperature resistant material for quicker response times. 12-month warrantyif the aem wide band lambda sensor fails, stops working or any other problems, you can contact us through amazon message to apply the service of carefree REPLACEMENT or REFUND.


The x-series wideband uego afr sensor controller gauge pn 30-0300 features a modern, visually striking faceplate and new seven-segment, center display that is 87% larger than the 30-4110 AEM. When tuning an engine using wideband afr feedback control on an inertia dyno, dead time affects the data you are looking at because it is reported in a different operating location than when it actually occurred.

X-series -30in/hg~35psi / -1~2. 5bar digital boost display gauge combines incredible looks, increased readability and a multitude of new, easy-to-use features! It is a must for users who want highly accurate boost pressure readouts up to 35 PSI or 2. 5 bar in their high performance vehicle.

Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune.



Manufactured to OE specification fit form and function, durable and easy installation. Or it will not fit your car. Please check your part pictures with our pictures, especially the plug, it must be completely same. Cautions: please check your vehicle fitment carefully in the product description to avoid any wrong purchase. Warranty: 1-year warranty.

The ultimate in peak engineering to guarantee reliability and longevity - Designed and constructed to balance volume, pressure, and turbine impeller angle to prevent overheating of fuel--and problem free operation in excess of 100, 000 miles.
Quiet operation - upgraded polymers, brushes, and commutators guarantee consistent flow & amperage draw while maintaining quiet operation. Se habla Español. Flow-tested high-performance fuel pumps - Guaranteed accurate flow, helping your vehicle achieve peak performance. Recommended for vehicles with engine performance upgrades. False.
1. Gledewen
#ad
LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310, X Series AFR Inline Controller, UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025
#adGledewen #ad - High performanceour wideband sensor use a more sophisticated sensing element that provides a signal that is proportional to the amount of oxygen in the exhaust, helps ensure your engine is constantly monitored and operating efficiently, while maximizing performance.A lot of buyers brought the wrong a/f gauge sensor because they don't pay attention to the plug and the length of the sensor. Please check these 2 features before purchase. Replace oe number17025, 0258017025, 304110, 300300, 300310.
More information #ad
Double laser-welded stainless steel body is totally submersible to seal tight for long life. Fitsaem wideband controllers with part numbers 30-4110 digital wideband uego gauge, 30-0300 x-series digital Wideband UEGO AFR Gauge, 30-0310 X-Series Inline Wideband UEGO AFR Controller | Most 4. 9 lsu wideband Controller Gauge. Premium qualitydurability matters, that is why our o2 sensor is crafted from high temperature resistant material for quicker response times. 12-month warrantyif the aem wide band lambda sensor fails, stops working or any other problems, you can contact us through amazon message to apply the service of carefree REPLACEMENT or REFUND.
Brand | Gledewen #ad |
Manufacturer | Gledewen #ad |
Height | 1.7 Inches |
Length | 6.1 Inches |
Width | 4.7 Inches |
Part Number | GW-QCGQ05 |
More information #ad
2. AEM
#ad
AEM 30-2004 UEGO Replacement Oxygen Sensor
#adAEM #ad - Never requires free-air calibration when used with an AEM Controller and connector plug. Replacement sensor only. Accurate to 01 afr. Specifically designed for use with AEM Wideband UEGO controller Part Number 30-4110 .More information #ad
Brand | AEM #ad |
Manufacturer | AEM #ad |
Height | 0.98 Inches |
Length | 3.54 Inches |
Weight | 0.34 Pounds |
Width | 0.98 Inches |
Part Number | 30-2004 |
Model | 30-2004 |
Warranty | Manufacturer warranty |
More information #ad
3. AEM
#ad
AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge
#adAEM #ad - X-digital wideband technology gives these controllers the ability to read and report values that other controllers do not, which can deliver more optimized engine tuning and a safer overall operating condition.The x-series wideband uego afr sensor controller gauge pn 30-0300 features a modern, visually striking faceplate and new seven-segment, center display that is 87% larger than the 30-4110 AEM. When tuning an engine using wideband afr feedback control on an inertia dyno, dead time affects the data you are looking at because it is reported in a different operating location than when it actually occurred.
More information #ad
The gauge includes a 0-5v and rs232 serial Port output for feedback control and data logging, and an AEMnet CANbus output for data logging. Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune.Brand | AEM #ad |
Manufacturer | AEM #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 1.43 Pounds |
Width | 0 Inches |
Part Number | 30-0300 |
Model | 30-0300 |
Warranty | Manufacturer warranty |
More information #ad
4. AEM
#ad
AEM Electronics COMBO AFR Wideband Sensor Contr. Gauge +Boost Pressure + Oil/Fuel Pressure Gauge
#adAEM #ad - Includes aem - air/fuel sensor controller gauge aem - x-serIES Boost Pressure Display Gauge AEM - X-Series Oil/Fuel Pressure Gauge. X-series 100 psi/7 bar digital oil/fuel pressure gauge combines incredible looks, increased readability and a multitude of new, easy-to-use features! It is a must for users who want highly accurate oil or fuel pressure readouts in their high performance vehicle.More information #ad
Em�s x-series wideband uego air/fuel ratio sensor controller gauges are built upon unique, patent-pending X-Digital technology that makes them the fastest responding wideband air/fuel ratio controllers in independent testing against 17 other wideband UEGO air/fuel controllers*. X-series -30in/hg~35psi / -1~2. 5bar digital boost display gauge combines incredible looks, increased readability and a multitude of new, easy-to-use features! It is a must for users who want highly accurate boost pressure readouts up to 35 PSI or 2. 5 bar in their high performance vehicle.
Brand | AEM #ad |
Manufacturer | AEM Electronic Inc. #ad |
Height | 12 Inches |
Length | 9 Inches |
Weight | 5 Pounds |
Width | 7 Inches |
Part Number | 30-0300 |
More information #ad
5. AEM
#ad
AEM 30-0310 X-Series Inline Wideband UEGO AFR Sensor Controller
#adAEM #ad - X-series inline wideband uego Controller features a weather-resistant, low-profile enclosure with status LEDs. When tuning an engine using wideband afr feedback control on an inertia dyno, dead time affects the data you are looking at because it is reported in a different operating location than when it actually occurred.Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune.
More information #ad
X-series digital wideband technology gives these controllers the ability to read and report values that other controllers do not, which can deliver more optimized engine tuning and a safer overall operating condition. The x-series inline controller includes a 0-5v and RS232 Serial Port output for feedback control and data logging, and an AEMnet CANbus output.Brand | AEM #ad |
Manufacturer | AEM #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 1.5 Pounds |
Width | 0 Inches |
Part Number | 30-0310 |
Model | 30-0310 |
Warranty | Manufacturer warranty |
More information #ad
6. AEM
#ad
AEM 52mm Wideband UEGO Air Fuel Ratio Sensor Controller Gauge w/White Face Kit
#adAEM #ad - Display lambda values from. 55 to 2. 00 Includes bosch 4. 9lsu wideband uego sensor. 17 competitor wideband AFR controllers. X-series wideband uego afr controller gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs.More information #ad
52mm gauge diameter and slim 0825” gauge depth. Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires. White bezel kit included. Black bezel and black dual faced faceplate, silver bezel/white gauge option included.Brand | AEM #ad |
Manufacturer | AEM #ad |
Height | 6 Inches |
Length | 5 Inches |
Weight | 1.5 Pounds |
Width | 5 Inches |
Part Number | 30-0300 + 30-0300-ACC |
More information #ad
7. AEM / Bosch
#ad
AEM Uego Gauge 30-4110NS and Bosch Wideband Sensor 17025 Kit
#adAEM / Bosch #ad - Bosch 4. 9 lsu wideband sensor and weld-in bung included PN 30-4110 Interchangeable black and white faceplates included Compatible with customizing gauge appearance.More information #ad
0-5v analog output 10-20 AFR range only. Interchangeable black and silver bezels included. No free air sensor calibration required ever.Brand | AEM / Bosch #ad |
Manufacturer | AEM / Bosch #ad |
Height | 7 Inches |
Length | 7 Inches |
Weight | 1.35 Pounds |
Width | 7 Inches |
Part Number | 30-4110-WS |
More information #ad
8. Marsflex
#ad
UEGO Air Fuel Ratio Wideband, X Series AFR Inline Controller, LSU 4.9 5-Wire Lambda WideBand O2 Oxygen Sensor 17025 Fit for AEM 30-4110 30-0300 30-0310
#adMarsflex #ad - All marsflex oxygen sensors are extensively tested during manufacturing to guarantee quality, reliability, and above all, always meet or exceed the original equipment specifications. Application: marsflex lambda wideband o2 oxygen senso 17025 fit for aem 30-4110 digital wideband uego gauge, 30-0300-X-Series Digital Wideband UEGO AFR Gauge, 30-0310-X-Series Inline Wideband UEGO AFR Controller.More information #ad
Easy installation: total length 40 inch. Advantage: made of high-quality materials, to ensure service life, strong durability, Marsflex O2 Sensor can improve engine performance and fuel economy, extend Catalytic Converter life. Manufactured to OE specification fit form and function, durable and easy installation. Or it will not fit your car. Please check your part pictures with our pictures, especially the plug, it must be completely same. Cautions: please check your vehicle fitment carefully in the product description to avoid any wrong purchase. Warranty: 1-year warranty.
Brand | Marsflex #ad |
Manufacturer | Marsmotor #ad |
Part Number | APEL14003 |
More information #ad
9. HFP
#ad
Replaces, PLX AEM 30-2001 4100 0258007206 Replacement for Automotive, PLX AEM 30-4100 30-2001 4100 17014 0258007206, QFS LSU 4.2 Wideband O2 UEGO Sensor, for Bosch
#adHFP #ad - Durable construction - capable of handing the stress of high octane fuel while surpassing industry standards for longevity & reliability. Lifetime warranty with dedicated in-house customer service team in the usa based in ventura, california.The ultimate in peak engineering to guarantee reliability and longevity - Designed and constructed to balance volume, pressure, and turbine impeller angle to prevent overheating of fuel--and problem free operation in excess of 100, 000 miles.
More information #ad
Quantum fuel systems has been American-owned and operated since 2009. Quiet operation - upgraded polymers, brushes, and commutators guarantee consistent flow & amperage draw while maintaining quiet operation. Se habla Español. Flow-tested high-performance fuel pumps - Guaranteed accurate flow, helping your vehicle achieve peak performance. Recommended for vehicles with engine performance upgrades. False.
Brand | HFP #ad |
Manufacturer | HFP #ad |
Height | 6 Inches |
Length | 2.5 Inches |
Weight | 0.35 Pounds |
Width | 2.5 Inches |
Part Number | HFP-WBS42 |
Model | HFP-WBS42 |
Warranty | Life Time Warranty |
More information #ad