This is the most complete kit available for Zenith model 63AW10 carburetors. This kit is a genuine Zenith K2017 kit that services the classic, cast iron updraft carburetor used on countless industrial applications from the 1930s onward. See Carburetor Numbers Serviced on this page for partial listings.
We have a limited quantity of these original US-made Zenith kits remaining. These are new stock we acquired in 2025 from Zenith Fuel Systems of Virginia before they shut down for good in December of that year after more than a hundred years of operation. These kits are the only ones that include the complete pump piston assembly and the correct pump inlet check valve that fits in the bottom of the float bowl (not the pump jet valve in the pump bore - contact us if you need this part). As well, the kit includes an ethanol-compatible needle/seat assembly, premium quality gaskets, original steel idle mixture screw, throttle shaft seals and retainers and instructions. Order now before these superior quality, American-made OEM parts are gone forever.




