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Item #:
122431001
AEM 30-0300 Wideband Gauge X-series AFR O2 UEGO Air Fuel Ratio gauge Kit 2 1/16"
Item #:
122431001
MMK 1055101
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Friday, July 24
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AEM X-Series wideband UEGO air/fuel sensor controller gauges report accurate information quickly— enabling you to tune your engine more efficiently.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Wideband Technology
Utilizes advanced wideband O2 sensor technology, providing accurate and real-time air-fuel ratio readings for optimal tuning and performance.
Compact Design
The 2 1/16-inch gauge size fits seamlessly into any dashboard, ensuring easy visibility and minimal space requirements for all vehicle types.
User-Friendly Interface
Featuring a clear display and easy-to-read scale, allowing drivers to monitor performance effortlessly while focusing on the road.
Product Details
| Other Part Number | 300300 / AEM 30-0300 |
| Items Included | Mounting Hardware, Wiring Harness |
| Unit of Measure | Air Fuel Ratio |
| Needle Color | LED Multi Color |
| Type | Digital Air Fuel Ratio |
| Interchange Part Number | 30-0300, 30-4110, AEM Wideband, Wideband, 30-4100, Wideband Gauge, AEM 30-0300 |
| Authorized Dealer | Yes |
| Manufacturer Warranty | 1 Year |
| Features | Display Gasoline values from 8.0:1 to 20.0:1 AFR, Wideband Air Fuel Ratio Display |
| Item Weight | 1.5lb (680 grams) |
| UPC | 0672713967163 |
| Item Diameter | 16 in |
| Color | Black |
| Manufacturer Part Number | 300300 |
| Material | Plastic |
| Superseded Part Number | 30-4100 |
| Vintage Part | No |
| California Prop 65 Warning | Cancer & Reproductive Harm |
| Brand | AEM |
| Display Type | Digital |
| OE/OEM Part Number | 30-0300 |
| Style | Racing |
| Universal Fitment | Yes |
| Country of Origin | United States |
| Performance Part | Yes |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
-
Car Enthusiasts
Ideal for automotive hobbyists looking to monitor and improve engine performance through accurate air-fuel ratio measurements.
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Motorsport Racers
Perfect for racers who need real-time feedback on fuel mixture for optimal engine tuning and performance under stress.
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Tuning Professionals
Beneficial for tuning professionals who require high-accuracy data to optimize fuel delivery for various engine setups.
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Casual Drivers
Not suitable for everyday drivers who do not engage in performance modifications or engine tuning tasks.
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Non-Technical Users
May be challenging for those without technical knowledge or experience in automotive tuning to install or interpret.
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Budget-Conscious Buyers
Not ideal for consumers seeking affordable solutions, as this gauge may be priced higher than basic alternatives.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Is this gauge compatible with my vehicle?
Answer: Please contact us before ordering to confirm fitment. -
Question:
What is the gauge diameter?
Answer: The gauge has a diameter of 2 1/16 in. (52mm). -
Question:
Does this gauge require free-air calibration?
Answer: No, it comes factory calibrated but allows for free-air calibration as needed.
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Mohd
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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Shawati
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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Youcef
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“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
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6/7/2026 · via Trustpilot
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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MMK 1055101
Order now and get it around Friday, July 24
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Fastest cross-border delivery
Features & Benefits
- Fast response times for efficient engine tuning.
- Innovative X-Digital technology for accurate readings.
- Large 87% display for easy visibility.
- User-configurable with auto-dimming features.
- Includes Bosch 4.9 LSU wideband UEGO sensor and necessary accessories.
- Compatible with various vehicle voltages and offers data-logging capabilities.
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