This carburetor fits all Mercury 3.5HP 4-stroke outboard engines.
This includes serial numbers 0R131842 and higher.
If you would like to increase the horsepower of your 3.5hp Mercury, please see this kit:
Mercury 3.5HP to 5HP 4-Stroke Upgrade Kit (Carburetor and Propeller)
We stock all of our products and ship quickly (usually either the same day or next business day) from Massachusetts.
