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Air/Fuel Ratio Gauges and Accessories

Correct air / fuel mixture is critical to achieving maximum power, efficiency, and engine life. The color of your exhaust pipe can only tell you so much! Air / Fuel Ratio Gauges tell you exactly what is happening in your engine, as it happens.

Recent Top Selling Products for this category

Wideband O2 Sensor Only (Bosch LSU 4.9) for Innovate
Wideband O2 Sensor Only (Bosch LSU 4.9) for Innovate

This heated, 5-wire Wideband Bosch LSU 4.9 oxygen sensor is the same as currently supplied with Innovate MTX dash-mount air-fuel ratio gauges.

Stainless Weld Bung for O2 Sensor, 18 x 1.5mm
Stainless Weld Bung for O2 Sensor, 18 x 1.5mm

Add a new or replace a damaged oxygen sensor bung with this stainless steel weld-in bung with M18x1.5mm threads.

Stainless O2 Sensor Blanking Plug, 18 x 1.5mm
Stainless O2 Sensor Blanking Plug, 18 x 1.5mm

This special stainless-steel M18-1.5mm plug is designed to replace std sized oxygen sensors in situations where the oxygen sensor is not needed or will be damaged when using leaded fuel.