Product Summary

Universal Fit, 2-1/16" Gauge Diameter, Black, White/Red

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    Key Specs

    MFG. Part #30-0309
    BrandAEM Electronics
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    AEM Electronics 30-0309 Details

    AEM’s 30-0309 X-Series 0~15PSI Digital Boost/Fuel Pressure 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 or fuel pressure readouts up to 15 PSI in their high performance supercharged or carbureted vehicle.

    NOTE: The 30-0309 comes with a black bezel and reversible black PSI Boost/Fuel Pressure faceplate. You will need to purchase the optional 30-0309-ACC accessory kit to get the silver bezel and reversible white PSI Boost/Fuel Pressure faceplate. The faceplate is double-sided with Boost PSI on one side and Fuel Pressure PSI on the other.

    EASIER TO READ

    Visual improvements include a bright center LED display that is 87% larger than our original digital gauges and provides better readability. A sweeping green LED “needle” lines the edge of the gauge face for quick reference. A 33% overall increase in the gauge face display makes it easier to see at a glance.

    EASIER TO MOUNT

    Despite the larger display, X-Series Gauges are contained in a standard 2-1/16th-inch (52mm) diameter housing for mounting in a standard gauge pod. Thanks to an advanced single board design, X-Series Gauges have an incredibly slim overall depth of under 0.825”, with a cup depth of only 0.200.” This shallow cup depth allows X-Series Digital Gauges to be mounted practically anywhere.

    SMARTER INTERFACE

    X-Series Digital Gauges include new technological features that make them easier to use. Two buttons on the faceplate deliver programmability for peak/recall, standard or metric center LED readout and sweeping LED needle, and user-selectable threshold warnings. The gauges are AEMnet CAN-bus enabled, so they can be daisy-chained together for use with the Infinity ECU, Series 2 EMS, AQ-1 Data Logger, or 3rd party EMS or logger that accepts AEMnet. 0-5V analog outputs are also included for inputting into data loggers and engine management systems.

    Features

    • 2-1/16th (52mm) gauge diameter for easy mounting in gauge pods
    • Slim 0.825” overall gauge depth and 0.200” cup depth – mount them virtually anywhere!
    • Center LED is 87% larger than original AEM gauges
    • 24 green outer LEDs for quick reference to engine parameter
    • Peak/Recall via gauge face buttons
    • User selectable threshold warnings
    • Optional silver bezel with white faceplate accessory kit available (sold separately)
    • AEMnet CANbus-enabled for transmitting data to EMS or Data Logger
    • 0-5v analog outputs for transmitting data to EMS or Data Logger
    • Auto dimming sensor delivers ideal display brightness
    • Positive locking connectors provide secure connection

    Rebates

    Holley October Promo 10% Off Select Parts Sale

    Holley October Promo 10% Off Select Parts SaleHolleyOctoberPromo10%OffSelectPartsSale

    Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.

    AEM Electronics 30-0309 Specifications

    KEY SPECS
    MFG. Part #30-0309
    BrandAEM Electronics
    GENERAL
    Gauge Diameter2-1/16"
    Gauge SeriesDigital
    Gauge Face ColorBlack
    Lettering ColorWhite/Red
    Gauge Range0-15 PSi
    Liquid FilledNo
    LightedYes
    Bezel FinishBlack
    Gauge SweepDigital Numeric
    Sending UnitElectrical
    Sending Unit IncludedYes
    OEM ReplacementNo
    GTIN Code840879024550
    Sold in QuantityEach

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