UW31563 Basic Carburetor Kit---USX with Diaphragm---Replaces 0404

Replaces number 0404

Fits: 1750, 1755, 1800, 1850, 1855

For Models with Marvel Schebler USX29, USX32-1, USX37, USX40, USX43, USX44 Carburetors

Includes: Gaskets, Needle, Seat, Throttle Shaft, & Diaphragm