2-1/16 HOLLEY WBO2 GAUGE-BLK - 26-626

Black Face with 0-5 Volt Output. Includes gauge, wiring harness, and Bosch LSU 4.9 wideband O2 sensor.

Part #: 26-626

Brand: Holley


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Holley 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.

Holley Analog Style Standalone Air/Fuel Wideband Gauge Kit - Black

Part #: 26-626
  • Length: 6.38"
  • Width: 4.75"
  • Height: 7"
  • Emissions Code: 0
  • Prop 65: 0


  • 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