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K&N Fuel/Air Ratio Monitor

The K & N Air/Fuel Monitor makes it easy to accurately tune the mixture in your engine for maximum power and efficiency. Single-wire oxygen sensor works with carburetors or fuel injection.

Recent Top Seller for this product group

Fuel/Air Monitor Only, Round

Fuel/Air Monitor Only, Round

The K&N Air/Fuel Monitor helps with jetting or injector settings on any engine running on unleaded gasoline, alcohol, propane or nitrous oxide. Mounts in a 2" hole like any standard gauge.

Image
Part No.
Description
Price
Status
K&N Fuel/Air Monitor Kit, Round

3881 

K&N Fuel/Air Monitor Kit, Round

$199.99In Stock
Single-Wire O2 Sensor with Weld Fitting for K&N

3882 

Single-Wire O2 Sensor with Weld Fitting for K&N

$88.99In Stock
K&N Weld Fitting for Oxygen Sensor

3883 

K&N Weld Fitting for Oxygen Sensor

$12.99In Stock
K&N Oxygen Sensor Blanking Plug

3884 

K&N Oxygen Sensor Blanking Plug

$16.99In Stock
Fuel/Air Monitor Only, Rectangular

3885 

Fuel/Air Monitor Only, Rectangular

$142.99In Stock
Fuel/Air Monitor Only, Round

3886 

Fuel/Air Monitor Only, Round

$146.99In Stock