Complete your fuel cell installation with this all-in-one filer neck, flapper valve, fuel cap kit., Kit Includes: (1) Fuel Cell Filler Neck - 4", (1) Twist-On Fuel Cell Cap, (1) Fuel Cell Rollover Flapper Valve, This 4" diameter gas filler neck kit can be used as a replacement unit or for your custom fuel cell. Kit includes a mounting ring, rubber gasket, and bolts., Replacement fuel cell cap fits 4" necks like those on our Steel Can Fuel Cells and Polyethylene Fuel Cells.
