Tank cap w/gasket 7911000006630
3 1/2" diameter
7921000012320 7911000006630 tc18 model hm3500. if orginal cap was black (143-194) then cap that will be sent will be white/tan (143-186) as black cap is not available. handled cap will fit if that is sent instead of flat cap. 7921000027834
Cap (tan/white) cannot buy cap outer gasket separately. if you receive a cap with a handle on it, this cap will still fit.7921000012320. can also buy the center gasket part # 143-186center.
Buy this part and as many parts as you like and pay only $8.99 shipping, within the Contiguous United States.