For sale is a NEW aftermarket filter set, tune up kit, for the Miller Hobart and other welders with Onan B43 B48 P218 P220 Engines. The kit comes with a new air filter, pre filter, oil filter (made in the USA), fuel filter, and two Champion spark plugs. The air filter is 8" across and 2 1/8" tall. The air filter replaces Onan part number 140-2628, 140-1228, and 140-2522. The oil filter replaces Onan 122-0645.