AutoMeter - 2-1/16" Air / Fuel Ratio Gauge - 6175

This AutoMeter Cobalt Series 2-1/16″ air/fuel ratio gauge is designed to help you monitor your engine’s fuel mixture to avoid lean/burn conditions that can lead to expensive engine damage. It uses a narrowband input (0-1 V) compatible with many factory oxygen sensors, or you may need to use AutoMeter’s model 2244 sensor if your vehicle doesn’t have a compatible sensor.

The gauge features a black face, white numbering, blue accent stripe, and vibrant blue LED illumination for excellent readability in any lighting. It fits standard 52 mm (2-1/16″) gauge mount holes and is ideal for both street and performance applications where monitoring air/fuel ratio is critical.

Key Features

• Monitors air/fuel mixture via factory narrow-band O₂ sensor input (0-1 V). 

• Stylish Cobalt Series design with blue LED lighting, black dial, white numbering, and blue accent. 

• Standard 2-1/16″ (52 mm) gauge size fits many aftermarket dash pods or OEM replacements.

• Plug-in installation using existing O₂ sensor wiring or optional adapter sensor.

Compatibility & Installation Notes

• Confirm your vehicle uses a narrowband O₂ sensor (0-1 V). If it uses a wideband or other type of sensor (0-5 V or 5-wire), this gauge will not be compatible without the proper interface.

• Install the gauge in a 52 mm (2-1/16″) dash cut-out or gauge pod. Ensure there is sufficient mounting depth and clearance behind the panel.

• Route wiring away from heat and moving components; secure connections and ground properly to avoid signal interference.

• After installation, monitor the gauge during warm-up and under various loads; ensure lean or rich conditions are visibly and reliably indicated.

• For optimal results, use in conjunction with a performance tune or engine monitoring setup to avoid long-term lean-burn conditions.

Warranty & Support

Final Sale Item. CANNOT be RETURNED.