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Stack Pro-Control Wideband Lambda Gauges
GAUGE, WIDEBAND AIR-FUEL RATIO (LAMBDA), PRO-CONTROL, 52MM, WHT
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
ST3404
Part Type:
Product Line:
Summit Racing Part Number:
SGG-ST3404
UPC:
046074167775
Gauge Type:
Air/Fuel ratio - Wideband
OEM Replacement:
No
Gauge Style:
Digital
Sending Unit:
Electrical
Gauge Diameter (in.):
2 1/16 in.
Gauge Diameter (mm):
52mm
Gauge Range:
8:1-20:1 air/fuel ratio
Gauge Shape:
Round
Sweep:
Digital numeric
Gauge Face Color:
White
Gauge Number Color:
Red
Bezel Color:
Black
Illuminated:
Yes
Memory Recall:
No
Playback:
No
Liquid-Filled:
No
Shift Light Included:
No
Tripometer:
No
Sending Unit Included:
Yes
Remanufactured:
No
Quantity:
Sold individually.
Stack Pro-Control Wideband Lambda Gauges
Stack Pro-Control Wideband Lambda Gauges are the ultimate tuning aids. Dual digital and radial LED displays provide an accurate real-time readout of either the air/fuel ratio or lambda (user-selectable). A 0-4 V analog output can be connected to a data-logger or to an ECU to provide real-time, closed-loop feedback for improved mapping. These Stack gauges come complete with a wiring harness and include a Bosch sensor. Select the gauge face color you prefer.
Additional features:
* Programmable alarm to warn of dangerous lean condition
* Peak recall of leanest value during last run
* Suitable for all fuel types with AFR from 6:1 to 20:1 (not recommended for leaded fuel)
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Some parts are not legal for use in California or other states with similar laws / regulations
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