Cap Set. These are compatible with the O.S. Speed R2101 and 21XZ-B V2 engines. Package includes 14mm, 16mm and 18mm caps, as well as two 3mm caps. This product was added to ...
This is a replacement thermo carb insulator gasket ...
for O.S. 20K/21C/20L/21H/21J carburetors. This is the small gasket that goes between the carburetor and the engine crankcase to stop heat transfer from the crankcase to the carburetor. This fits on the ...