Product Summary

Universal Fit, 2.0625" Overall Diameter, White, Black

    Key Specs

    MFG. Part #553-168W

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    Holley 553-168W Details

    Holley EFI now offers a fully standalone 2-1/16" Air/Fuel Wideband O2 Gauge Kit with 0-5 volt analog output allowing data logging capability. Our gauge kit includes a slim mounting analog face gauge with 5-foot weathertight sensor harness and 4-foot power/ground/lighting harness allowing for flexible mounting locations and a Bosch LSU 4.9 wideband O2 sensor. Designed specifically for use with all EFI or carbureted systems and available in both black and white face versions.


    • Completely standalone with easy-to-read analog dial - Great for EFI or carbureted applications
    • Features 0-5 volt analog output for data logging
    • Includes Bosch LSU 4.9 wideband O2 sensor which is compatible with all fuel types (Unleaded, Leaded, E85, Diesel, or Methanol)
    • Gauge reads in gasoline scale only
    • Slim-style composite carbon case allows mounting with very little dash space required
    • 270° sweep pointer from 6 to 3 o’clock makes gauge easy to read at a glance
    • Internal microprocessor controls the pointer movement to ensure accurate movement in street, off-road, and racing conditions
    • Adjustable LED warning light allows user to set both low and high trigger points
    • Peak recall button allows user to view min/max gauge readings
    • Gauge includes a 5 ft. 6-pin weathertight sensor harness and 4 ft. power/ground/lighting harness allowing for flexible mounting locations
    • Spin lock ring threads to back of gauge case for simple and secure gauge mounting
    • CNC machined billet aluminum bezels with anodized finish – Bezels are threaded for easy replacement
    • Multiple bezel options available separately – User can customize the gauge to their preference


    Holley 553-168W Specifications

    MFG. Part #553-168W
    Speedway Motors Catalog Part #425-553168W
    Overall Diameter2.0625"
    Sold in QuantityEach
    NotesIncludes Bosch LSU 4.9 wideband O2 sensor, 5 ft. sensor harness, and 4 ft. power/ground/lighting harness. Features 0-5 volt analog output for data logging.
    Gauge TypeAnalog
    Gauge Range8.5-18
    Sending UnitElectrical
    Gauge Face ColorWhite
    Bezel FinishBlack
    OEM ReplacementNo
    Sending Unit IncludedYes
    Needle ColorRed
    GTIN Code090127060209
    Lettering ColorBlack